Article(id=1321935396364202987, tenantId=1146029695717560320, journalId=1220038251117760515, issueId=1321927083589227197, articleNumber=null, orderNo=null, doi=10.11868/j.issn.1001-4381.2025.000097, pmid=null, cstr=32421.14.j.issn.1001-4381.2025.000097, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1740412800000, receivedDateStr=2025-02-25, revisedDate=null, revisedDateStr=null, acceptedDate=1744041600000, acceptedDateStr=2025-04-08, onlineDate=1793103558864, onlineDateStr=2026-10-27, pubDate=1776614400000, pubDateStr=2026-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793103558864, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793103558864, creator=13701087609, updateTime=1793103558864, 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=205, endPage=216, ext={EN=ArticleExt(id=1321935396594889708, articleId=1321935396364202987, tenantId=1146029695717560320, journalId=1220038251117760515, language=EN, title=Effect of building height on microstructure and mechanical property of GH4169 alloy fabricated by selective laser melting, columnId=1220689384450478826, journalTitle=Journal of Materials Engineering, columnName=RESEARCH ARTICLE, runingTitle=null, highlight=null, articleAbstract=
Selective laser melting (SLM) technology can fabricate components with highly intricate geometries. Nevertheless, due to its layer-by-layer construction process,SLM inevitably leads to variations in microstructures and mechanical properties along the building direction,which in turn undermines the service stability of the fabricated components. Heat treatment is generally employed to enhance the homogeneity of microstructures and reduce the disparity in mechanical properties along the building direction. This study delves into the influence of building heights on the microstructures and mechanical properties of GH4169 alloy produced via SLM and sheds light on the mechanisms governing microstructure evolution during heat treatment. The key findings indicate that the microstructures of the as-built GH4169 alloy consist of the γ phase and Laves phase. The geometrically necessary dislocation density of the alloy demonstrates a decreasing trend as the building height increases, primarily attributable to the thermal cycles and heat accumulation that occur along the building height. After heat treatment, the recrystallization degree of the alloy at the bottom and middle sections reaches approximately 87.8%, while that at the top section is a mere 34.1%. This significant discrepancy in recrystallization is mainly due to the higher dislocation density at the bottom, which boosts the recrystallization driving force. The yield strength of the as-built GH4169 alloy at the bottom and middle sections is around 850 MPa, whereas that at the top section is approximately 780 MPa. Following heat treatment, the yield strengths of the alloy at different heights all approximate 1150 MPa. Owing to the variation in recrystallization, precipitation at the bottom is more pronounced than that at the top, resulting in a stronger precipitation strengthening effect. On the other hand, the finer grain size and higher dislocation density at the top contribute to enhanced grain boundary strengthening and dislocation strengthening. As a consequence, the strength of the alloy at the bottom and top sections after heat treatment is comparable.
, authors=Jie SU
1, Junkang WU
1, Xin MA
2, Yi ZHANG
2, Yan WANG
1, Liming TAN
1, Lan HUANG
1, Feng LIU
1, authorsList=Jie SU, Junkang WU, Xin MA, Yi ZHANG, Yan WANG, Liming TAN, Lan HUANG, Feng LIU, authorCompany=null, correspAuthors=Liming TAN, 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=1321935400214573060, articleId=1321935396364202987, tenantId=1146029695717560320, journalId=1220038251117760515, language=CN, title=成形高度对选区激光熔化GH4169合金显微组织和力学性能的影响, columnId=1220689384622445292, journalTitle=材料工程, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
选区激光熔化工艺可制备形状复杂的零部件,但逐层堆积的工艺特性造成零部件沿高度方向会存在组织和性能差异,影响其服役稳定性。而热处理通常可以改善组织均匀性,减小沿高度方向的力学性能差异。采用选区激光熔化制备GH4169合金,研究了成形高度对合金显微组织及力学性能的影响,以及热处理过程中的显微组织演化机制,结果表明:打印态GH4169合金显微组织以γ相和Laves相为主,沿高度方向的热积累以及顶部较少的热循环造成合金内几何必须位错密度随高度增加而减小。热处理后底部和中部的再结晶程度约为87.8%,而顶部的再结晶程度约为34.1%;底部的位错密度相对较高,更容易发生再结晶。打印态GH4169合金在底部和中部的屈服强度约为850 MPa,顶部约为780 MPa。热处理减小了沿高度方向的性能差异,不同高度合金的屈服强度均为1150 MPa左右。热处理后由于再结晶程度不同造成析出相、位错密度和晶粒度在不同高度存在差异,在综合影响下合金力学性能趋于一致。
, authors=苏捷
1, 吴俊慷
1, 马鑫
2, 张毅
2, 王岩
1, 谭黎明
1, 黄岚
1, 刘锋
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1.中南大学 粉末冶金研究院,长沙 410083)])]), Author(id=1321935401099571222, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, 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=1321935401175068696, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, authorId=1321935401099571222, language=EN, stringName=Xin MA, firstName=Xin, middleName=null, lastName=MA, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2, address=
2.中国航发南方工业有限公司,湖南 株洲 412002, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1321935400550117384, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, xref=2., ext=[AuthorCompanyExt(id=1321935400558505993, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, companyId=1321935400550117384, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.中国航发南方工业有限公司,湖南 株洲 412002)])]), Author(id=1321935401628053536, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, 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=1321935401703551010, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, authorId=1321935401628053536, language=EN, stringName=Yan WANG, firstName=Yan, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.中南大学 粉末冶金研究院,长沙 410083)])]), Author(id=1321935401850351653, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=limingtan@csu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1321935401930043431, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, authorId=1321935401850351653, language=EN, stringName=Liming TAN, firstName=Liming, middleName=null, lastName=TAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.中南大学 粉末冶金研究院,长沙 410083, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1321935400453648389, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, xref=1., ext=[AuthorCompanyExt(id=1321935400466231302, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, companyId=1321935400453648389, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.中南大学 粉末冶金研究院,长沙 410083)])]), Author(id=1321935402089426986, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, orderNo=6, 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=1321935402190090284, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, authorId=1321935402089426986, language=EN, stringName=Lan HUANG, firstName=Lan, middleName=null, lastName=HUANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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129: 122-133., articleTitle=Effects of scan rotation angle and build orientation on mechanical anisotropy in additive manufacturing 316L stainless steel, refAbstract=null)], funds=[Fund(id=1321935409429459035, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, awardId=HFZL2022CXY029, language=CN, fundingSource=中国航发产学研项目(HFZL2022CXY029), fundOrder=null, country=null), Fund(id=1321935409509150812, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, awardId=2024GK1080, language=CN, fundingSource=湖南省十大技术攻关项目(2024GK1080), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1321935400453648389, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, xref=1., ext=[AuthorCompanyExt(id=1321935400466231302, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, companyId=1321935400453648389, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.中南大学 粉末冶金研究院,长沙 410083)]), AuthorCompany(id=1321935400550117384, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, xref=2., ext=[AuthorCompanyExt(id=1321935400558505993, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, companyId=1321935400550117384, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2.中国航发南方工业有限公司,湖南 株洲 412002)])], figs=[ArticleFig(id=1321935405046411325, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.1, caption=
Powder morphology(a) and powder size distribution(b) of GH4169 alloy, figureFileSmall=UiFMSSAxAS3X6tZLJeEQ2g==, figureFileBig=gXabQ3pegI8jZxugdmIVgQ==, tableContent=null), ArticleFig(id=1321935405117714494, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图1, caption=
GH4169合金粉末形貌(a)及粒径分布(b), figureFileSmall=UiFMSSAxAS3X6tZLJeEQ2g==, figureFileBig=gXabQ3pegI8jZxugdmIVgQ==, tableContent=null), ArticleFig(id=1321935405319041087, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.2, caption=
Schematic diagram of GH4169 alloy sample (a)samples fabricated by SLM;(b)tensile sample, figureFileSmall=/CiN3lehTsriAaMUcbfCTQ==, figureFileBig=z6UJIAq+1WsvuBikcXsMQw==, tableContent=null), ArticleFig(id=1321935405386149952, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图2, caption=
GH4169合金试样示意图 (a)SLM成形试样;(b)拉伸试样, figureFileSmall=/CiN3lehTsriAaMUcbfCTQ==, figureFileBig=z6UJIAq+1WsvuBikcXsMQw==, tableContent=null), ArticleFig(id=1321935405457453121, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.3, caption=
Dendritic(1) and cellular(2) morphology of as-built GH4169 alloy at different area(a)bottom;(b)middle;(c)top
, figureFileSmall=nYljFfviyzeCwHVXNPHBBw==, figureFileBig=WdeVIVuVdnQauIjQcqy43Q==, tableContent=null), ArticleFig(id=1321935405562310722, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图3, caption=
打印态GH4169合金不同区域枝晶(1)及胞状(2)组织形貌(a)底部;(b)中部;(c)顶部
, figureFileSmall=nYljFfviyzeCwHVXNPHBBw==, figureFileBig=WdeVIVuVdnQauIjQcqy43Q==, tableContent=null), ArticleFig(id=1321935405654585411, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.4, caption=
IPF maps(1), KAM maps(2) and grain size distribution(3) of as-built GH4169 alloy at different area(a)bottom;(b)middle;(c)top
, figureFileSmall=j8FdVD7E7WLW8AlGY9cqYQ==, figureFileBig=B49S1CEf3cSq3/STmZdepw==, tableContent=null), ArticleFig(id=1321935405725888580, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图4, caption=
打印态GH4169合金不同区域IPF图(1)、KAM图(2)和晶粒尺寸分布图(3)(a)底部;(b)中部;(c)顶部
, figureFileSmall=j8FdVD7E7WLW8AlGY9cqYQ==, figureFileBig=B49S1CEf3cSq3/STmZdepw==, tableContent=null), ArticleFig(id=1321935405834940485, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.5, caption=
Pole figures of as-built GH4169 alloy at different area (a)bottom;(b)middle;(c)top, figureFileSmall=jKZewZ1Pyig7dkZrW7jSTQ==, figureFileBig=jDSaUJ78eqIknwU/YjzNmg==, tableContent=null), ArticleFig(id=1321935405931409478, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图5, caption=
打印态GH4169合金不同区域极图 (a)底部;(b)中部;(c)顶部, figureFileSmall=jKZewZ1Pyig7dkZrW7jSTQ==, figureFileBig=jDSaUJ78eqIknwU/YjzNmg==, tableContent=null), ArticleFig(id=1321935406011101255, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.6, caption=
Mirostructures of GH4169 alloy after heat treatment at different area(a)morphology of δ phase at the bottom;(b)morphology of δ phase at the middle;(c)morphology of δ phase at the top;(d)TEM image of the bottom;(e)TEM image of the top
, figureFileSmall=yq4Q1cPNS9LRlqtUqA9FPA==, figureFileBig=vzWZF8nrbZG3r9I1S72sZA==, tableContent=null), ArticleFig(id=1321935406078210120, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图6, caption=
热处理态GH4169合金不同区域微观组织(a)底部δ相形貌图;(b)中部δ相形貌图;(c)顶部δ相形貌图;(d)底部TEM图像;(e)顶部TEM图像
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IPF map (1),grain boundry map (2) and grain size distribution (3) of GH4169 alloy after heat treatment at different area(a)bottom;(b)middle;(c)top
, figureFileSmall=lFpivxAAo5RwWPOBQgZZhA==, figureFileBig=/4S9H8RFlMRKByBgK5bCJw==, tableContent=null), ArticleFig(id=1321935406220816458, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图7, caption=
热处理态GH4169合金不同区域IPF图(1)、晶界图(2)和晶粒尺寸分布图(3)(a)底部;(b)中部;(c)顶部
, figureFileSmall=lFpivxAAo5RwWPOBQgZZhA==, figureFileBig=/4S9H8RFlMRKByBgK5bCJw==, tableContent=null), ArticleFig(id=1321935406296313931, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.8, caption=
KAM map(1) and recrystallization map(2) of GH4169 alloy after heat treatment at different area(a)bottom;(b)middle;(c)top
, figureFileSmall=OrOCQAWdEhslzcWIVAnzmw==, figureFileBig=6Z/dC/FvbYccqZWYjytHSg==, tableContent=null), ArticleFig(id=1321935406376005708, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图8, caption=
热处理态GH4169合金不同区域KAM图(1)与再结晶图(2)(a)底部;(b)中部;(c)顶部
, figureFileSmall=OrOCQAWdEhslzcWIVAnzmw==, figureFileBig=6Z/dC/FvbYccqZWYjytHSg==, tableContent=null), ArticleFig(id=1321935406464086093, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.9, caption=
Tensile stress-strain curves(a) and performace statistic(b) of as-built GH4169 alloy at different heights, figureFileSmall=/v+Hp4daBNsYSxr4gPo89g==, figureFileBig=sOAe7OH7APGyZ5tWqcPIOA==, tableContent=null), ArticleFig(id=1321935406522806350, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图9, caption=
打印态GH4169合金不同高度拉伸应力-应变曲线(a)与性能统计图(b), figureFileSmall=/v+Hp4daBNsYSxr4gPo89g==, figureFileBig=sOAe7OH7APGyZ5tWqcPIOA==, tableContent=null), ArticleFig(id=1321935406606692431, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.10, caption=
Microstructures of as-built GH4169 alloy at top after tensile test(a)-(c)fracture morphology;(d)microstructure at deformation zone;(e)IPF map at deformation zone;(f)pole figure at deformation zone
, figureFileSmall=EgS+Ozu7oXATbwBxTGLcbw==, figureFileBig=/qaiD5Ced5w3u2ZPDhaW9Q==, tableContent=null), ArticleFig(id=1321935406711550032, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图10, caption=
打印态GH4169合金顶部拉伸后微观组织(a)~(c)断口形貌;(d)变形区微观组织;(e)变形区IPF图;(f)变形区极图
, figureFileSmall=EgS+Ozu7oXATbwBxTGLcbw==, figureFileBig=/qaiD5Ced5w3u2ZPDhaW9Q==, tableContent=null), ArticleFig(id=1321935408439603281, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.11, caption=
Tensile stress-strain curves (a) and performace statistic (b) of GH4169 alloy after heat treatment at different heights, figureFileSmall=gqrBPbogfUFw31aTYus4vg==, figureFileBig=UTn3ODOvw2IwQr8/KFNk9w==, tableContent=null), ArticleFig(id=1321935408557043794, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图11, caption=
热处理态GH4169不同高度拉伸应力-应变曲线(a)与性能统计图(b), figureFileSmall=gqrBPbogfUFw31aTYus4vg==, figureFileBig=UTn3ODOvw2IwQr8/KFNk9w==, tableContent=null), ArticleFig(id=1321935408632541267, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Fig.12, caption=
Microstructures of GH4169 alloy heat treated at top after tensile test(a)-(c)fracture morphology;(d)microstructure at deformation zone;(e)IPF map at deformation zone;(f)pole figure at deformation zone
, figureFileSmall=+FIBMR+4KuUaXbSwlSVN3Q==, figureFileBig=8djDTjrqUwxnfIuy2hMZrQ==, tableContent=null), ArticleFig(id=1321935408745787476, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=图12, caption=
热处理态GH4169合金顶部拉伸后微观组织(a)~(c)断口形貌;(d)拉伸变形区微观组织;(e)变形区IPF图;(f)变形区极图
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Composition of GH4169 alloy powder (mass fraction/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Cr | Fe | Mo | Nb | Ti | Al | Co | C | Ni |
|---|
| 18.1 | 17.8 | 3.08 | 4.99 | 0.92 | 0.45 | 0.24 | 0.035 | Bal. |
), ArticleFig(id=1321935408913559638, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=表1, caption=
GH4169合金粉末成分(质量分数/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Cr | Fe | Mo | Nb | Ti | Al | Co | C | Ni |
|---|
| 18.1 | 17.8 | 3.08 | 4.99 | 0.92 | 0.45 | 0.24 | 0.035 | Bal. |
), ArticleFig(id=1321935409018417239, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=EN, label=Table2, caption=
Size and content of γ″ phase in GH4169 alloy after heat treatment at different area
, figureFileSmall=null, figureFileBig=null, tableContent=
| Position | Length/nm | Aspect ratio | Content/% |
|---|
| Top | 20.4 | 2.7 | 6.6 |
| Bottom | 16.7 | 2.6 | 13.2 |
), ArticleFig(id=1321935409131663448, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935396364202987, language=CN, label=表2, caption=
热处理态GH4169不同区域γ″相尺寸与含量
, figureFileSmall=null, figureFileBig=null, tableContent=
| Position | Length/nm | Aspect ratio | Content/% |
|---|
| Top | 20.4 | 2.7 | 6.6 |
| Bottom | 16.7 | 2.6 | 13.2 |
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Recrystallization driving force of GH4169 alloy at different area
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| r/μm | /MPa | ρ/m-2 | /MPa | P/MPa |
|---|
| Bottom | 7.20 | 0.333 | 7.57×1013 | 0.180 | 0.513 |
| Middle | 7.10 | 0.338 | 7.25×1013 | 0.169 | 0.507 |
| Top | 7.39 | 0.325 | 6.73×1013 | 0.160 | 0.485 |
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不同区域GH4169合金再结晶驱动力
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| r/μm | /MPa | ρ/m-2 | /MPa | P/MPa |
|---|
| Bottom | 7.20 | 0.333 | 7.57×1013 | 0.180 | 0.513 |
| Middle | 7.10 | 0.338 | 7.25×1013 | 0.169 | 0.507 |
| Top | 7.39 | 0.325 | 6.73×1013 | 0.160 | 0.485 |
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