Article(id=1321935437296415008, tenantId=1146029695717560320, journalId=1220038251117760515, issueId=1321927083589227197, articleNumber=null, orderNo=null, doi=10.11868/j.issn.1001-4381.2024.000604, pmid=null, cstr=32421.14.j.issn.1001-4381.2024.000604, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1724688000000, receivedDateStr=2024-08-27, revisedDate=null, revisedDateStr=null, acceptedDate=1733155200000, acceptedDateStr=2024-12-03, onlineDate=1793103568624, onlineDateStr=2026-10-27, pubDate=1776614400000, pubDateStr=2026-04-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793103568624, onlineIssueDateStr=2026-10-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793103568624, creator=13701087609, updateTime=1793103568624, 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=269, endPage=281, ext={EN=ArticleExt(id=1321935437506130209, articleId=1321935437296415008, tenantId=1146029695717560320, journalId=1220038251117760515, language=EN, title=Effect of initial residual stress on mechanical properties of ZTC4 titanium alloy, columnId=1220689384450478826, journalTitle=Journal of Materials Engineering, columnName=RESEARCH ARTICLE, runingTitle=null, highlight=null, articleAbstract=
The microstructure, tensile fracture morphology and initial residual stress of ZTC4 titanium alloy repair welding are analyzed by stereomicroscope, optical microscope (OM), scanning electron microscope (SEM), X-ray residual stress analyzer and tensile testing machine, and their effects on room temperature/high temperature tensile properties and fatigue properties are studied. The results show that the microstructure of ZTC4 titanium alloy after repair welding is mainly composed of equiaxed grains (with a grain size of about 1.5 mm) and grains with a large aspect ratio (5∶1). Different repair welding diameters and annealing treatment can affect the properties of residual stress, thus affecting the mechanical properties. The residual stress at the center of the original state of the room temperature/high temperature tensile and fatigue specimens is mainly tensile stress, which is 115.9, -24.6 MPa and 55.6 MPa, respectively. In the high temperature (350 ℃) tensile test, the larger the initial residual tensile stress (173.3 MPa) at the center of the repair welding diameter 4 mm specimens, the lower the tensile strength (710.7 MPa); the larger the initial residual compressive stress (-159.1 MPa) at the center of the repair welding diameter 4 mm and annealing specimens, the higher the tensile strength (749.3 MPa).The residual tensile stress significantly shortens the fatigue life of titanium alloy, whereas residual compressive stress increases it. The initial residual stress at the center of the original state, repair welding diameter of 2 mm, repair welding diameter of 2 mm and annealing, repair welding diameter of 4 mm, and repair welding diameter of 4 mm and annealing specimen is 55.6,109.9, -189.1,61.4 MPa, and -64.3 MPa, respectively. The fatigue properties of the specimens with initial residual compressive stress is better.
, authors=Jun LUO
1, 2, 3, Xi WANG
1, 2, 3, Wenzheng ZHAO
1, 4, Hai NAN
1, 4, Changkui LIU
1, 2, 3, Nan LI
1, 2, 3, authorsList=Jun LUO, Xi WANG, Wenzheng ZHAO, Hai NAN, Changkui LIU, Nan LI, authorCompany=null, correspAuthors=Nan LI, 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=1321935441612353852, articleId=1321935437296415008, tenantId=1146029695717560320, journalId=1220038251117760515, language=CN, title=初始残余应力对ZTC4钛合金力学性能的影响, columnId=1220689384622445292, journalTitle=材料工程, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=
采用体式显微镜、光学显微镜(OM)、扫描电子显微镜(SEM)、X射线残余应力分析仪及拉伸试验机分析ZTC4钛合金补焊组织、拉伸断口形貌、初始残余应力,研究其对室温/高温拉伸性能及疲劳性能的影响。结果表明:补焊后ZTC4钛合金微观组织主要为等轴晶粒(晶粒尺寸为1.5 mm左右)及长宽比(5∶1)较大的晶粒;不同的补焊直径及退火处理会影响残余应力的性质,从而影响力学性能。室温/高温拉伸、疲劳试样原始态的中心位置残余应力主要为拉应力,分别为115.9、-24.6、55.6 MPa。在高温(350 ℃)拉伸实验时,补焊直径4 mm试样中心位置的初始残余拉应力(173.3 MPa)越大,抗拉强度(710.7 MPa)越低;补焊直径4 mm+退火试样中心位置的初始残余压应力(-159.1 MPa)越大,抗拉强度(749.3 MPa)越高。残余拉应力使钛合金疲劳寿命大幅缩短,反之,残余压应力会使疲劳寿命增加。原始态、补焊直径2 mm、补焊直径2 mm+退火、补焊直径4 mm、补焊直径4 mm+退火试样中心位置的初始残余应力分别为55.6、109.9、-189.1、61.4、-64.3 MPa,其中具有初始残余压应力的试样疲劳性能较好。
, authors=罗军
1, 2, 3, 王曦
1, 2, 3, 赵文正
1, 4, 南海
1, 4, 刘昌奎
1, 2, 3, 李楠
1, 2, 3, authorsList=罗军, 王曦, 赵文正, 南海, 刘昌奎, 李楠, authorCompany=null, correspAuthors=李楠, authorNote=null, correspAuthorsNote=
李楠(1983—),女,高级工程师,博士,研究方向为材料与结构分析、残余应力表征技术及大科学装置技术等,联系地址:北京市81信箱4分箱(100095),E-mail:
nanli6@126.com, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=4I5AeQ2swlE0weOGgDLcQg==, magXml=FU4B07ll80tnSW/8ysw6tg==, pdfUrl=null, pdf=eFEXMfO7rDoT9GPgJGW4ow==, pdfFileSize=12475698, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=Y3XdOwIynCyXeYQM5rNcnw==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=NGINX2h5KU7LkD7SUbChDQ==, mapNumber=null, fund=null)}, authors=[Author(id=1321935442279248202, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, orderNo=0, 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=1321935442388300110, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, authorId=1321935442279248202, language=EN, stringName=Jun LUO, firstName=Jun, middleName=null, lastName=LUO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China
2.Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation,Beijing 100095,China
3.Key Laboratory of Aeronautical Materials Testing and Evaluation,Aero Engine Corporation of China,Beijing 100095,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321935444112159055, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, authorId=1321935442279248202, language=CN, stringName=罗军, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.中国航发北京航空材料研究院,北京 100095
2.航空材料检测与评价北京市重点实验室,北京 100095
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3.Key Laboratory of Aeronautical Materials Testing and Evaluation,Aero Engine Corporation of China,Beijing 100095,China), AuthorCompanyExt(id=1321935442073727301, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, companyId=1321935442052755779, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.中国航空发动机集团材料检测与评价重点实验室,北京 100095)])]), Author(id=1321935444187656529, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, 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=1321935444372205909, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, authorId=1321935444187656529, language=EN, stringName=Xi WANG, firstName=Xi, middleName=null, lastName=WANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China
2.Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation,Beijing 100095,China
3.Key Laboratory of Aeronautical Materials Testing and Evaluation,Aero Engine Corporation of China,Beijing 100095,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321935444451897686, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, authorId=1321935444187656529, language=CN, stringName=王曦, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1.中国航发北京航空材料研究院,北京 100095
2.航空材料检测与评价北京市重点实验室,北京 100095
3.中国航空发动机集团材料检测与评价重点实验室,北京 100095, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1321935441855623485, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, xref=1., ext=[AuthorCompanyExt(id=1321935441868206398, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, companyId=1321935441855623485, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China), AuthorCompanyExt(id=1321935441880789311, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, companyId=1321935441855623485, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.中国航发北京航空材料研究院,北京 100095)]), AuthorCompany(id=1321935441960481088, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, xref=2., ext=[AuthorCompanyExt(id=1321935441968869697, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, companyId=1321935441960481088, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation,Beijing 100095,China), AuthorCompanyExt(id=1321935441981452610, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, companyId=1321935441960481088, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.中国航空发动机集团材料检测与评价重点实验室,北京 100095)])]), Author(id=1321935444527395160, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, 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=1321935444615475547, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, authorId=1321935444527395160, language=EN, stringName=Wenzheng ZHAO, firstName=Wenzheng, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 4, address=
1.AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China
4.Beijing Engineering Research Center of Advanced Titanium Alloy Precision Forming Technology,Beijing 100095,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321935444682584412, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, authorId=1321935444527395160, language=CN, stringName=赵文正, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 4, address=
1.中国航发北京航空材料研究院,北京 100095
4.北京市先进钛合金精密成型工程技术研究中心,北京 100095, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1321935441855623485, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, xref=1., ext=[AuthorCompanyExt(id=1321935441868206398, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, companyId=1321935441855623485, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.AECC Beijing Institute of Aeronautical Materials,Beijing 100095,China
4.Beijing Engineering Research Center of Advanced Titanium Alloy Precision Forming Technology,Beijing 100095,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1321935444913271138, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, authorId=1321935444762276190, language=CN, stringName=南海, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.中国航发北京航空材料研究院,北京 100095
4.北京市先进钛合金精密成型工程技术研究中心,北京 100095, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1321935441855623485, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, xref=1., ext=[AuthorCompanyExt(id=1321935441868206398, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, companyId=1321935441855623485, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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52(12):4260-4267., articleTitle=null, refAbstract=null)], funds=[Fund(id=1321935450873377175, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, awardId=2019-363, language=CN, fundingSource=稳定支持项目(2019-363), fundOrder=null, country=null), Fund(id=1321935450953068952, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, awardId=52371015, language=CN, fundingSource=国家自然科学基金(52371015), fundOrder=null, country=null), Fund(id=1321935451028566425, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, awardId=2022YFB3403904, language=CN, fundingSource=国家重点研发计划资助项目(2022YFB3403904), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1321935441855623485, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, xref=1., ext=[AuthorCompanyExt(id=1321935441868206398, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, companyId=1321935441855623485, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Photo of plate and sampling diagrams of mechanical properties(a)photo of titanium alloy plate;(b)tensile specimen sampling diagram of room temperature/high temperature;(c)sampling diagram of fatigue specimen
, figureFileSmall=lcMrdSYsFMzKps1dcraVaA==, figureFileBig=Y3XdOwIynCyXeYQM5rNcnw==, tableContent=null), ArticleFig(id=1321935446297391482, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图1, caption=
原始板材照片及力学性能取样示意图(a)钛合金板材照片;(b)室温/高温拉伸试样取样示意图;(c)疲劳试样取样示意图
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Schematic diagrams of residual stress test locations for room temperature/high temperature tensile specimens(a)repair welding diameter of 2 mm;(b)repair welding diameter of 4 mm
, figureFileSmall=jaxfs3z24gJmphyk4QDbww==, figureFileBig=74Cx8wG++YdYaMZI4+hswQ==, tableContent=null), ArticleFig(id=1321935446687461756, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图2, caption=
室温/高温拉伸试样残余应力测试位置示意图(a)补焊直径2 mm;(b)补焊直径4 mm
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Macro and micro morphologies of repair welding zone in titanium alloy plates(a)macroscopic morphology of repair welding area;(b),(c)macro and micro morphologies of equiaxed crystal;(d),(e)macro and micro morphologies of columnar crystal
, figureFileSmall=glrYMVNZX5qie6TOGLxffQ==, figureFileBig=kXFpmVLxiJvjGQRt1T9AVA==, tableContent=null), ArticleFig(id=1321935446846845310, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图3, caption=
钛合金板材补焊区域宏、微观形貌(a)补焊区域宏观形貌;(b),(c)等轴晶宏、微观形貌;(d),(e)柱状晶宏、微观形貌
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Initial residual stress distributions of tensile specimens at room temperature in different states(a)original state;(b)repair welding diameter of 2 mm;(c)repair welding diameter of 2 mm and annealing;
(d)repair welding diameter of 4 mm;(e)repair welding diameter of 4 mm and annealing
, figureFileSmall=pBd3Zjp41PycFnoXdqXuBQ==, figureFileBig=c0wgMyXrFXP6UGo4gPkpwQ==, tableContent=null), ArticleFig(id=1321935448667173248, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图4, caption=
不同状态下室温拉伸试样初始残余应力分布(a)原始态;(b)补焊直径2 mm;(c)补焊直径2 mm+退火;(d)补焊直径4 mm;(e)补焊直径4 mm+退火
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Initial residual stress distributions of tensile specimens at high temperature in different states(a)original state;(b)repair welding diameter of 2 mm;(c)repair welding diameter of 2 mm and annealing;
(d)repair welding diameter of 4 mm;(e)repair welding diameter of 4 mm and annealing
, figureFileSmall=VI3qVr3yvu4qLkl4Ro/QFQ==, figureFileBig=qn9v6zOro8br2GhcVEdacA==, tableContent=null), ArticleFig(id=1321935448881082754, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图5, caption=
不同状态下高温拉伸试样初始残余应力分布(a)原始态;(b)补焊直径2 mm;(c)补焊直径2 mm+退火;(d)补焊直径4 mm;(e)补焊直径4 mm+退火
, figureFileSmall=VI3qVr3yvu4qLkl4Ro/QFQ==, figureFileBig=qn9v6zOro8br2GhcVEdacA==, tableContent=null), ArticleFig(id=1321935449115963779, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=EN, label=Fig.6, caption=
Initial residual stress distributions of fatigue specimens in different states(a)original state;(b)repair welding diameter of 2 mm;(c)repair welding diameter of 2 mm and annealing;(d)repair welding diameter of 4 mm;(e)repair welding diameter of 4 mm and annealing
, figureFileSmall=I0OwwGYwWiCdUdoZovh4zg==, figureFileBig=pvDMQux3bxAlll7L/6BV2Q==, tableContent=null), ArticleFig(id=1321935449225015684, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图6, caption=
不同状态下疲劳试样初始残余应力分布(a)原始态;(b)补焊直径2 mm;(c)补焊直径2 mm+退火;(d)补焊直径4 mm;(e)补焊直径4 mm+退火
, figureFileSmall=I0OwwGYwWiCdUdoZovh4zg==, figureFileBig=pvDMQux3bxAlll7L/6BV2Q==, tableContent=null), ArticleFig(id=1321935449292124549, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=EN, label=Fig.7, caption=
Initial average residual stress distributions of specimens with different mechanical properties(a)room temperature tensile specimen;(b)high temperature tensile specimen;(c)fatigue specimen
, figureFileSmall=ksFOX5jvPIA8FdbjIr6Wvg==, figureFileBig=Wbx0toCcY+0nQGGo5OFKGw==, tableContent=null), ArticleFig(id=1321935449363427718, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图7, caption=
不同力学性能试样初始平均残余应力分布(a)室温拉伸试样;(b)高温拉伸试样;(c)疲劳试样
, figureFileSmall=ksFOX5jvPIA8FdbjIr6Wvg==, figureFileBig=Wbx0toCcY+0nQGGo5OFKGw==, tableContent=null), ArticleFig(id=1321935449535394183, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=EN, label=Fig.8, caption=
Stress-strain curves of room temperature tensile specimens in different states(a)original state;(b)repair welding diameter of 2 mm;(c)repair welding diameter of 2 mm and annealing;
(d)repair welding diameter of 4 mm;(e)repair welding diameter of 4 mm and annealing
, figureFileSmall=XRdrBTjk0SLdlwQ9aFy/zQ==, figureFileBig=+/NyHE6woekov4GVl3pKAQ==, tableContent=null), ArticleFig(id=1321935449606697352, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图8, caption=
不同状态下室温拉伸试样应力-应变曲线(a)原始态;(b)补焊直径2 mm;(c)补焊直径2 mm+退火;(d)补焊直径4 mm;(e)补焊直径4 mm+退火
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Stress-strain curves of high temperature tensile specimens in different states(a)original state;(b)repair welding diameter of 2 mm;(c)repair welding diameter of 2 mm and annealing;
(d)repair welding diameter of 4 mm;(e)repair welding diameter of 4 mm and annealing
, figureFileSmall=nA3YLa+JllfKdOb/NLuQEg==, figureFileBig=U/Ktrm+qQeurWkko0T11EQ==, tableContent=null), ArticleFig(id=1321935449791246730, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图9, caption=
不同状态下高温拉伸试样应力-应变曲线(a)原始态;(b)补焊直径2 mm;(c)补焊直径2 mm+退火;(d)补焊直径4 mm;(e)补焊直径4 mm+退火
, figureFileSmall=nA3YLa+JllfKdOb/NLuQEg==, figureFileBig=U/Ktrm+qQeurWkko0T11EQ==, tableContent=null), ArticleFig(id=1321935449875132811, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=EN, label=Fig.10, caption=
Average elongation of samples in different states, figureFileSmall=Iw072GquafM5ln8GHpXU7g==, figureFileBig=ovTFaXQFV2Zl8M7qtOpAcg==, tableContent=null), ArticleFig(id=1321935449942241676, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图10, caption=
不同状态下试样平均伸长率, figureFileSmall=Iw072GquafM5ln8GHpXU7g==, figureFileBig=ovTFaXQFV2Zl8M7qtOpAcg==, tableContent=null), ArticleFig(id=1321935450013544845, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=EN, label=Fig.11, caption=
Average tensile strength and plastic elongation strength of samples in different states, figureFileSmall=3a+XzKzk4FvgbNVsJuY/Ig==, figureFileBig=YSWs/LtqXOxdONNyo55aeQ==, tableContent=null), ArticleFig(id=1321935450089042318, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图11, caption=
不同状态下试样平均抗拉强度和塑性延伸强度, figureFileSmall=3a+XzKzk4FvgbNVsJuY/Ig==, figureFileBig=YSWs/LtqXOxdONNyo55aeQ==, tableContent=null), ArticleFig(id=1321935450151956879, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=EN, label=Fig.12, caption=
Fracture morphologies of room temperature tensile specimens(a)original state;(b)repair welding diameter of 2 mm;(c)repair welding diameter of 2 mm and annealing;
(d)repair welding diameter of 4 mm;(e)repair welding diameter of 4 mm and annealing
, figureFileSmall=MvUi3rN2HOm+xM+p5WuSSA==, figureFileBig=pSQ5jOB6ZcOKapMGew0/+g==, tableContent=null), ArticleFig(id=1321935450252620176, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图12, caption=
室温拉伸试样断口形貌(a)原始态;(b)补焊直径2 mm;(c)补焊直径2 mm+退火;(d)补焊直径4 mm;(e)补焊直径4 mm+退火
, figureFileSmall=MvUi3rN2HOm+xM+p5WuSSA==, figureFileBig=pSQ5jOB6ZcOKapMGew0/+g==, tableContent=null), ArticleFig(id=1321935450332311953, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=EN, label=Fig.13, caption=
Fracture morphologies of high temperature tensile specimens(a)original state;(b)repair welding diameter of 2 mm;(c)repair welding diameter of 2 mm and annealing;
(d)repair welding diameter of 4 mm;(e)repair welding diameter of 4 mm and annealing
, figureFileSmall=NQBQCHqdfA4YCU5Fgq1MTA==, figureFileBig=sluqu0GFie4dXLnbkFooPg==, tableContent=null), ArticleFig(id=1321935450412003730, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=图13, caption=
高温拉伸试样断口形貌(a)原始态;(b)补焊直径2 mm;(c)补焊直径2 mm+退火;(d)补焊直径4 mm;(e)补焊直径4 mm+退火
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Chemical compositions of ZTC4 cast titanium alloy(mass fraction/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Al | V | Fe | Si | C | N | H | O | Ti |
|---|
| 6.38 | 3.96 | 0.048 | 0.025 | 0.013 | 0.006 | 0.003 | 0.16 | Bal. |
), ArticleFig(id=1321935450554610068, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=表1, caption=
ZTC4铸造钛合金化学成分(质量分数/%)
, figureFileSmall=null, figureFileBig=null, tableContent=
| Al | V | Fe | Si | C | N | H | O | Ti |
|---|
| 6.38 | 3.96 | 0.048 | 0.025 | 0.013 | 0.006 | 0.003 | 0.16 | Bal. |
), ArticleFig(id=1321935450646884757, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=EN, label=Table 2, caption=
Fatigue properties at room temperature of specimens in different states
, figureFileSmall=null, figureFileBig=null, tableContent=
| State | No. | N/cycle | Result | Failure mode |
|---|
| Original state | 1# | 10007 | Fracture | Broken in working section |
| 2# | 11253 | Fracture | Broken in working section |
| 3# | 30000 | No failure | |
| 4# | 30000 | No failure | |
| Repair welding diameter of 2 mm | 1# | 6378 | Fracture | Broken in working section |
| 2# | 10966 | Fracture | Broken in working section |
| 3# | 10621 | Fracture | Broken in working section |
| Repair welding diameter of 2 mm and annealing | 1# | 30000 | No failure | |
| 2# | 30000 | No failure | |
| 3# | 10790 | Fracture | Broken in working section |
| Repair welding diameter of 4 mm | 1# | 4371 | Fracture | Broken in working section |
| 2# | 7864 | Fracture | Broken in working section |
| 3# | 10690 | Fracture | Broken in working section |
| Repair welding diameter of 4 mm and annealing | 1# | 30000 | No failure | |
| 2# | 30000 | No failure | |
| 3# | 30000 | No failure | |
), ArticleFig(id=1321935450747548054, tenantId=1146029695717560320, journalId=1220038251117760515, articleId=1321935437296415008, language=CN, label=表2, caption=
不同状态下试样室温疲劳性能
, figureFileSmall=null, figureFileBig=null, tableContent=
| State | No. | N/cycle | Result | Failure mode |
|---|
| Original state | 1# | 10007 | Fracture | Broken in working section |
| 2# | 11253 | Fracture | Broken in working section |
| 3# | 30000 | No failure | |
| 4# | 30000 | No failure | |
| Repair welding diameter of 2 mm | 1# | 6378 | Fracture | Broken in working section |
| 2# | 10966 | Fracture | Broken in working section |
| 3# | 10621 | Fracture | Broken in working section |
| Repair welding diameter of 2 mm and annealing | 1# | 30000 | No failure | |
| 2# | 30000 | No failure | |
| 3# | 10790 | Fracture | Broken in working section |
| Repair welding diameter of 4 mm | 1# | 4371 | Fracture | Broken in working section |
| 2# | 7864 | Fracture | Broken in working section |
| 3# | 10690 | Fracture | Broken in working section |
| Repair welding diameter of 4 mm and annealing | 1# | 30000 | No failure | |
| 2# | 30000 | No failure | |
| 3# | 30000 | No failure | |
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