Article(id=1321935422792520670, tenantId=1146029695717560320, journalId=1220038251117760515, issueId=1321927083589227197, articleNumber=null, orderNo=null, doi=10.11868/j.issn.1001-4381.2025.000360, pmid=null, cstr=32421.14.j.issn.1001-4381.2025.000360, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1751040000000, receivedDateStr=2025-06-28, revisedDate=null, revisedDateStr=null, acceptedDate=1758470400000, acceptedDateStr=2025-09-22, onlineDate=1793103565166, onlineDateStr=2026-10-27, pubDate=1776614400000, pubDateStr=2026-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793103565166, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793103565166, creator=13701087609, updateTime=1793103565166, updator=13701087609, issue=Issue{id=1321927083589227197, tenantId=1146029695717560320, journalId=1220038251117760515, year='2026', volume='54', issue='4', pageStart='1', pageEnd='345', issueExtLink='null', onlineDate='null', pubDate='1776614400000', pubDateStr='2026-04-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793101576945, creator='13701087609', updateTime=1793101576945, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=237, endPage=249, ext={EN=ArticleExt(id=1321935423006430175, articleId=1321935422792520670, tenantId=1146029695717560320, journalId=1220038251117760515, language=EN, title=Effect of heat treatment on microstructure modulation and aging precipitation behavior of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy, columnId=1220689384450478826, journalTitle=Journal of Materials Engineering, columnName=RESEARCH ARTICLE, runingTitle=null, highlight=null, articleAbstract=
The Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy is prepared using the smelting process. This study investigates the impacts of solution and aging temperatures, as well as their durations, on the microstructure and mechanical properties of the alloy. Additionally, it analyzed the morphology, size, and distribution of Si and precipitated phases.It is observed that the as-cast microstructure comprises α-Al, eutectic Si, Mg₂Si, Al₃Sc, and Al₃(Sc, Zr) phases. As the solution and aging temperatures and times increase, the morphology of the Si phase transforms from plate-like and fibrous to worm-like and nearly spherical. Prolonged holding times lead to the segregation and coarsening of the Si phase, which turns into short rod-like structures. The tensile strength and elongation initially rise and then decline with increasing solution temperature. During single-stage aging at 170 °C, the strength and hardness first increase and then decrease with the extension of the holding time, eventually reaching a stable state. The interface between the β´´ and α-Al phases evolves from coherent to semi-coherent and then incoherent, and the fracture mechanism shifts from intergranular fracture to typical dimple fracture.Pre-aging at 110 ℃ promotes the precipitation of β´´ and Al₃(Sc, Zr) phases, significantly spheroidizes the morphology of the Si phase, and refines its size. The length and precipitated surface density of the β´´ phases are (29 ± 1.8) nm and 3.52 × 10³ μm⁻², respectively. After dual-stage aging at 110 °C/2 h + 170 °C/6 h, the tensile strength, yield strength, and elongation can reach 363, 301 MPa, and 7.9%, respectively.
, authors=Zhenzhong FAN
1, 2, Ji WANG
3, Hongbiao LI
3, Shide LI
3, Yanzhong TIAN
4, Shoujie YANG
1, 2, authorsList=Zhenzhong FAN, Ji WANG, Hongbiao LI, Shide LI, Yanzhong TIAN, Shoujie YANG, authorCompany=null, correspAuthors=Zhenzhong FAN, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1321935427041350648, articleId=1321935422792520670, tenantId=1146029695717560320, journalId=1220038251117760515, language=CN, title=热处理对Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金显微组织调控与时效析出行为的影响, columnId=1220689384622445292, journalTitle=材料工程, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
采用熔铸法制备Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金,研究固溶、时效热处理温度与时间对合金显微组织和室温力学性能的影响规律,分析固溶、时效热处理态下Si相及沉淀相析出形貌、尺寸及分布。结果表明:铸态组织由α-Al、共晶Si相、Mg2Si相、Al3Sc相和Al3(Sc,Zr)相组成,随固溶温度与保温时间增加,Si相形貌由板片状、纤维状演变为蠕虫状、近球状,保温过长时偏聚、粗化转为短棒状,材料室温强度极限与伸长率随固溶温度提高先上升后下降。170 ℃单级时效下材料强度、硬度随保温时间延长先上升后下降并趋于稳定,β″相与α-Al界面由共格演变为半共格、非共格,材料断裂机制由铸态沿晶断裂转变为典型韧窝断裂。110 ℃预时效形成弥散分布G.P.区,促进β″和Al3(Sc,Zr)沉淀相大量析出并显著球化Si相形貌,细化Si相尺寸,β″相长度与析出数量分别为(29±1.8) nm和3.52×103 μm-2,110 ℃/2 h+170 ℃/6 h双级时效热处理后材料抗拉强度、屈服强度与伸长率可达363、301 MPa与7.9%。
, authors=樊振中
1, 2, 王佶
3, 李鸿标
3, 李世德
3, 田艳中
4, 杨守杰
1, 2, authorsList=樊振中, 王佶, 李鸿标, 李世德, 田艳中, 杨守杰, authorCompany=null, correspAuthors=樊振中, authorNote=null, correspAuthorsNote=
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1, 2, address=
1.AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China
2.Beijing Engineering Research Center of Advanced Aluminum Alloys and Applications,Beijing 100095,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321935427863433225, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935427691466757, language=CN, stringName=樊振中, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.中国航发北京航空材料研究院,北京 100095
2.北京市先进铝合金材料及应用工程技术研究中心,北京 100095, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1321935427297203193, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, xref=1., ext=[AuthorCompanyExt(id=1321935427301397498, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, companyId=1321935427297203193, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.北京市先进铝合金材料及应用工程技术研究中心,北京 100095)])]), Author(id=1321935427947319307, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321935428022816781, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935427947319307, language=EN, stringName=Ji WANG, firstName=Ji, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.CITlC Dicastal Co. ,Ltd. ,Qinhuangdao 066000,Hebei,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321935428144451598, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935427947319307, language=CN, stringName=王佶, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.中信戴卡股份有限公司,河北 秦皇岛 066000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1321935427490141183, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, xref=3., ext=[AuthorCompanyExt(id=1321935427498529792, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, companyId=1321935427490141183, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.CITlC Dicastal Co. ,Ltd. ,Qinhuangdao 066000,Hebei,China), AuthorCompanyExt(id=1321935427506917376, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, companyId=1321935427490141183, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.中信戴卡股份有限公司,河北 秦皇岛 066000)])]), Author(id=1321935428249309200, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321935428341583890, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935428249309200, language=EN, stringName=Hongbiao LI, firstName=Hongbiao, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.CITlC Dicastal Co. ,Ltd. ,Qinhuangdao 066000,Hebei,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321935428438052883, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935428249309200, language=CN, stringName=李鸿标, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.中信戴卡股份有限公司,河北 秦皇岛 066000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1321935427490141183, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, xref=3., ext=[AuthorCompanyExt(id=1321935427498529792, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, companyId=1321935427490141183, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.中信戴卡股份有限公司,河北 秦皇岛 066000)])]), Author(id=1321935428534521877, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321935428622602263, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935428534521877, language=EN, stringName=Shide LI, firstName=Shide, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.CITlC Dicastal Co. ,Ltd. ,Qinhuangdao 066000,Hebei,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321935428702294040, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935428534521877, language=CN, stringName=李世德, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3.中信戴卡股份有限公司,河北 秦皇岛 066000, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1321935427490141183, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, xref=3., ext=[AuthorCompanyExt(id=1321935427498529792, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, companyId=1321935427490141183, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.中信戴卡股份有限公司,河北 秦皇岛 066000)])]), Author(id=1321935428790374426, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, orderNo=4, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321935428878454812, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935428790374426, language=EN, stringName=Yanzhong TIAN, firstName=Yanzhong, middleName=null, lastName=TIAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, address=
4.School of Materials Science and Engineering,Northeastern University,Shenyang 110167,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321935428945563677, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935428790374426, language=CN, stringName=田艳中, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, address=
4.东北大学 材料科学与工程学院,沈阳 110167, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1321935427594997761, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, xref=4., ext=[AuthorCompanyExt(id=1321935427603386370, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, companyId=1321935427594997761, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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4.东北大学 材料科学与工程学院,沈阳 110167)])]), Author(id=1321935430203854879, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1321935430694588450, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935430203854879, language=EN, stringName=Shoujie YANG, firstName=Shoujie, middleName=null, lastName=YANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China
2.Beijing Engineering Research Center of Advanced Aluminum Alloys and Applications,Beijing 100095,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321935430770085923, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, authorId=1321935430203854879, language=CN, stringName=杨守杰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.中国航发北京航空材料研究院,北京 100095
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1.中国航发北京航空材料研究院,北京 100095)]), AuthorCompany(id=1321935427389477884, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, xref=2., ext=[AuthorCompanyExt(id=1321935427397866493, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, companyId=1321935427389477884, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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via synergistic microalloying with Sb and La, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1321935427297203193, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, xref=1., ext=[AuthorCompanyExt(id=1321935427301397498, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, companyId=1321935427297203193, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Schematic diagram of mechanical properties test specimen size, figureFileSmall=A+HaG18m14QVuz6+4a8PAw==, figureFileBig=Ky66UzRdr2atPEQW3cRpgQ==, tableContent=null), ArticleFig(id=1321935432053542959, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图1, caption=
力学性能拉伸试样尺寸示意图, figureFileSmall=A+HaG18m14QVuz6+4a8PAw==, figureFileBig=Ky66UzRdr2atPEQW3cRpgQ==, tableContent=null), ArticleFig(id=1321935432263258160, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.2, caption=
DSC curves of as-cast Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy, figureFileSmall=vtQhaBWHJo61noXl+UvT/g==, figureFileBig=w5C/nPRVaNyQIqh1Y6dIAQ==, tableContent=null), ArticleFig(id=1321935432330367025, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图2, caption=
Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金铸态DSC曲线, figureFileSmall=vtQhaBWHJo61noXl+UvT/g==, figureFileBig=w5C/nPRVaNyQIqh1Y6dIAQ==, tableContent=null), ArticleFig(id=1321935432418447410, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.3, caption=
Room temperature mechanical properties of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy under different solution temperatures, figureFileSmall=xKQPiPpe+j0KuZhy01qvdw==, figureFileBig=lMPHsrjaiSg4t2QDyJNQOg==, tableContent=null), ArticleFig(id=1321935432489750579, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图3, caption=
不同固溶温度下Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金室温力学性能, figureFileSmall=xKQPiPpe+j0KuZhy01qvdw==, figureFileBig=lMPHsrjaiSg4t2QDyJNQOg==, tableContent=null), ArticleFig(id=1321935432573636660, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.4, caption=
XRD patterns and phase identification of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloys under as-cast state and different solution temperatures, figureFileSmall=oTb19oprOSTccKYjUyrHTA==, figureFileBig=mEvEPuqNN25kQ3GZsb5lJw==, tableContent=null), ArticleFig(id=1321935432674299957, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图4, caption=
铸态与不同固溶温度下Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金的XRD图谱及组成相标定, figureFileSmall=oTb19oprOSTccKYjUyrHTA==, figureFileBig=mEvEPuqNN25kQ3GZsb5lJw==, tableContent=null), ArticleFig(id=1321935432749797430, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.5, caption=
SEM microstructure morphology and element distribution of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy in the solution state(a)SEM microstructure morphology;(b)Si;(c)Mg;(d)Sc;(e)Zr;(f)Sb
, figureFileSmall=LGTDI9iknwbFHQDjfFKuvw==, figureFileBig=q7EW1SghpxyIwX0PmHdaUA==, tableContent=null), ArticleFig(id=1321935432825294903, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图5, caption=
Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金固溶态SEM组织形貌与元素分布(a)SEM组织形貌;(b)Si;(c)Mg;(d)Sc;(e)Zr;(f)Sb
, figureFileSmall=LGTDI9iknwbFHQDjfFKuvw==, figureFileBig=q7EW1SghpxyIwX0PmHdaUA==, tableContent=null), ArticleFig(id=1321935432913375288, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.6, caption=
Microstructure morphology of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy under different solution temperatures, figureFileSmall=zOfr1/5GdneVi2/GWdHvew==, figureFileBig=ysB1FDymuWQn7+CLbTOa0A==, tableContent=null), ArticleFig(id=1321935432993067065, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图6, caption=
不同固溶温度下Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金微观组织形貌(a)525 ℃;(b)535 ℃;(c)545 ℃;(d)555 ℃
(a)525 ℃;(b)535 ℃;(c)545 ℃;(d)555 ℃
, figureFileSmall=zOfr1/5GdneVi2/GWdHvew==, figureFileBig=ysB1FDymuWQn7+CLbTOa0A==, tableContent=null), ArticleFig(id=1321935433064370234, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.7, caption=
Statistics on microstructure morphology and silicon phase size distribution of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy under different solution time (a)as-cast;(b)2 h;(c)4 h;(d)6 h;(e)8 h;(f)10 h;(g)12 h;(h)14 h;(i)16 h, figureFileSmall=lZ2fygl+e/GfmVx0gdu7mg==, figureFileBig=MvTp0sLoTpJXfztWPWw0uw==, tableContent=null), ArticleFig(id=1321935433156644923, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图7, caption=
不同固溶保温时间下Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb 合金组织形貌和Si相尺寸分布统计(a)铸态;(b)2 h;(c)4 h;(d)6 h;(e)8 h;(f)10 h;(g)12 h;(h)14 h;(i)16 h
, figureFileSmall=lZ2fygl+e/GfmVx0gdu7mg==, figureFileBig=MvTp0sLoTpJXfztWPWw0uw==, tableContent=null), ArticleFig(id=1321935433227948092, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.8, caption=
TEM microstructure of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy under different aging time(a)aging for 6 h;(b)aging for 10 h;(c)HRTEM of β″ phase;(d)FFT of β″ phase
, figureFileSmall=lXVJcjBi5kplwDD9SGGClA==, figureFileBig=xPE9bLmdpPGexsvADYpW7g==, tableContent=null), ArticleFig(id=1321935433316028477, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图8, caption=
不同时效保温时间下Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金TEM微观组织(a)时效保温6 h;(b)时效保温10 h;(c)β″相HRTEM图;(d))β″相FFT图
, figureFileSmall=lXVJcjBi5kplwDD9SGGClA==, figureFileBig=xPE9bLmdpPGexsvADYpW7g==, tableContent=null), ArticleFig(id=1321935433395720254, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.9, caption=
Fracture morphology of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy in different states(a)as-cast;(b)aging state;(c)enlarged view of selection area
, figureFileSmall=RJtI1hINL+hLYgoKKEr/RQ==, figureFileBig=Srs9tWG/f3iSihmMhnlxxQ==, tableContent=null), ArticleFig(id=1321935433467023423, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图9, caption=
不同状态Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金断口形貌(a)铸态;(b)时效态;(c)选区放大图
, figureFileSmall=RJtI1hINL+hLYgoKKEr/RQ==, figureFileBig=Srs9tWG/f3iSihmMhnlxxQ==, tableContent=null), ArticleFig(id=1321935435115384896, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.10, caption=
Mechanical properties of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy under different dual-stage aging heat preservation time(a)tensile strength;(b)elongation
, figureFileSmall=zp2QFqyHcwmHTOGwzKOw6A==, figureFileBig=AYK2kjiA9r1Od/LCHX8bqQ==, tableContent=null), ArticleFig(id=1321935435207659585, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图10, caption=
不同双级时效保温时间下Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金室温力学性能(a)抗拉强度;(b)伸长率
, figureFileSmall=zp2QFqyHcwmHTOGwzKOw6A==, figureFileBig=AYK2kjiA9r1Od/LCHX8bqQ==, tableContent=null), ArticleFig(id=1321935435291545666, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.11, caption=
Microstructure of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy in different heat treatment states(a),(b)as-cast;(c),(d)single-stage aging heat treatment;(e),(f)dual-stage aging heat treatment
, figureFileSmall=ze98xGBkwZ/T7mySTwhkxw==, figureFileBig=dnnSucoOxgCujGSJIPKzBw==, tableContent=null), ArticleFig(id=1321935435358654531, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图11, caption=
不同热处理状态Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金微观组织(a),(b)铸态;(c),(d)单级时效热处理;(e),(f)双级时效热处理
, figureFileSmall=ze98xGBkwZ/T7mySTwhkxw==, figureFileBig=dnnSucoOxgCujGSJIPKzBw==, tableContent=null), ArticleFig(id=1321935435450929220, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Fig.12, caption=
TEM microstructure of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy in different heat treatment states(a)single-stage aging heat treatment;(b)dual-stage aging heat treatment;(c)elemental analysis of precipitated phase selected area;
(d)Al;(e)Si;(f)Mg;(g)Sc;(h)Zr
, figureFileSmall=yD3ghZE0eN/hZG/xlOmKiw==, figureFileBig=qzS6f8PFxtyJz49GPdATOQ==, tableContent=null), ArticleFig(id=1321935435589341253, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=图12, caption=
不同时效状态Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金TEM组织(a)单级峰时效态;(b)双级峰时效态;(c)析出相选区元素分析;(d)Al;(e)Si;(f)Mg;(g)Sc;(h)Zr
, figureFileSmall=yD3ghZE0eN/hZG/xlOmKiw==, figureFileBig=qzS6f8PFxtyJz49GPdATOQ==, tableContent=null), ArticleFig(id=1321935435673227334, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Table1, caption=
Chemical composition of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy(mass fraction/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Si | Mg | Sc | Zr | Sb | Al |
|---|
| 5.98 | 0.75 | 0.19 | 0.15 | 0.12 | Bal. |
), ArticleFig(id=1321935435748724807, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=表1, caption=
Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金化学成分(质量分数/%)
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| Si | Mg | Sc | Zr | Sb | Al |
|---|
| 5.98 | 0.75 | 0.19 | 0.15 | 0.12 | Bal. |
), ArticleFig(id=1321935435849388104, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Table 2, caption=
Single-stage and dual-stage aging heat treatment parameters of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy
, figureFileSmall=null, figureFileBig=null, tableContent=
| Solution temperature/℃ | Solution time/h | Quenching medium | Quenching temperature/℃ | Preaging temperature/℃ | Preaging time/h | Ageing temperature/℃ | Aging time/h |
|---|
| 545 | 8 | Water | 40 | | | 170 | 6 |
| 545 | 8 | Water | 40 | 110 | 2 | 155 | 6 |
| 545 | 8 | Water | 40 | 110 | 2 | 170 | 6 |
| 545 | 8 | Water | 40 | 110 | 2 | 185 | 6 |
), ArticleFig(id=1321935435937468489, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=表2, caption=
Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金单级与双级时效热处理制度
, figureFileSmall=null, figureFileBig=null, tableContent=
| Solution temperature/℃ | Solution time/h | Quenching medium | Quenching temperature/℃ | Preaging temperature/℃ | Preaging time/h | Ageing temperature/℃ | Aging time/h |
|---|
| 545 | 8 | Water | 40 | | | 170 | 6 |
| 545 | 8 | Water | 40 | 110 | 2 | 155 | 6 |
| 545 | 8 | Water | 40 | 110 | 2 | 170 | 6 |
| 545 | 8 | Water | 40 | 110 | 2 | 185 | 6 |
), ArticleFig(id=1321935436054909002, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Table 3, caption=
Vickers hardness of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy under different single-stage aging time
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| Temperature/℃ | 0.5 h | 2 h | 4 h | 6 h | 8 h | 10 h | 12 h |
|---|
| 155 | 92±1.1 | 98±0.7 | 108±2.9 | 117±1.6 | 111±2.8 | 106±4.5 | 104±0.5 |
| 170 | 91±0.8 | 100±1.2 | 113±3.3 | 121±2.6 | 117±3.8 | 109±1.6 | 106±1.7 |
| 185 | 90±0.8 | 108±1.8 | 115±4.2 | 109±1.1 | 103±1.5 | 100±2.8 | 99±0.8 |
), ArticleFig(id=1321935436134600779, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=表3, caption=
不同单级时效保温时间下Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金维氏硬度
, figureFileSmall=null, figureFileBig=null, tableContent=
| Temperature/℃ | 0.5 h | 2 h | 4 h | 6 h | 8 h | 10 h | 12 h |
|---|
| 155 | 92±1.1 | 98±0.7 | 108±2.9 | 117±1.6 | 111±2.8 | 106±4.5 | 104±0.5 |
| 170 | 91±0.8 | 100±1.2 | 113±3.3 | 121±2.6 | 117±3.8 | 109±1.6 | 106±1.7 |
| 185 | 90±0.8 | 108±1.8 | 115±4.2 | 109±1.1 | 103±1.5 | 100±2.8 | 99±0.8 |
), ArticleFig(id=1321935436256235596, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=EN, label=Table 4, caption=
Mechanical properties of Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb alloy under different single-stage aging time
, figureFileSmall=null, figureFileBig=null, tableContent=
| State | Tensile strength/MPa | Yield strength/MPa | Elongation/% | Q |
|---|
| As-cast | 211±3.1 | 125±2.8 | 5.1±2.0 | 317±24 |
| 170 ℃/4 h | 343±4.8 | 271±3.2 | 7.9±0.2 | 477±7 |
| 170 ℃/6 h | 353±4.7 | 282±7.5 | 7.6±0.8 | 485±11 |
| 170 ℃/8 h | 349±3.3 | 287±3.8 | 4.6±1.3 | 448±20 |
| 170 ℃/10 h | 340±2.1 | 281±2.6 | 4.1±0.6 | 431±3 |
), ArticleFig(id=1321935436331733069, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935422792520670, language=CN, label=表4, caption=
不同单级时效保温时间下Al-6Si-0.75Mg-0.2Sc-0.15Zr-0.12Sb合金室温力学性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| State | Tensile strength/MPa | Yield strength/MPa | Elongation/% | Q |
|---|
| As-cast | 211±3.1 | 125±2.8 | 5.1±2.0 | 317±24 |
| 170 ℃/4 h | 343±4.8 | 271±3.2 | 7.9±0.2 | 477±7 |
| 170 ℃/6 h | 353±4.7 | 282±7.5 | 7.6±0.8 | 485±11 |
| 170 ℃/8 h | 349±3.3 | 287±3.8 | 4.6±1.3 | 448±20 |
| 170 ℃/10 h | 340±2.1 | 281±2.6 | 4.1±0.6 | 431±3 |
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