Article(id=1309475099128983642, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475082548896055, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20260107, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=null, receivedDateStr=null, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1790132792503, onlineDateStr=2026-09-23, pubDate=1787155200000, pubDateStr=2026-08-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790132792503, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790132792503, creator=13701087609, updateTime=1790132792503, updator=13701087609, issue=Issue{id=1309475082548896055, tenantId=1146029695717560320, journalId=1189873562199433220, year='2026', volume='', issue='8', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='1787155200000', pubDateStr='2026-08-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1790132788550, creator='13701087609', updateTime=1790132870635, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309475426930614510, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475082548896055, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309475426930614511, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475082548896055, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=8, endPage=13, ext={EN=ArticleExt(id=1309475100638933083, articleId=1309475099128983642, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Study on Microstructure and Properties of AZ41M Magnesium Alloy TIG Welded Joints, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=

To systematically investigate the microstructural evolution and mechanical property response of AZ41M magnesium alloy TIG welded joints, alternating-current TIG welding is employed to perform butt welding on AZ41M sheets with 3 mm-diameter AZ81 filler wire. Sound welds with uniform formation, free of apparent surface defects and achieving full penetration, are acquired under optimized process parameters. The microstructure and mechanical properties of the joints are systematically characterized using optical microscopy, room-temperature tensile testing, bending testing, and fatigue testing. The results demonstrate that the welded joint yields a yield strength of 124 MPa, an ultimate tensile strength of 231 MPa, and an elongation of 17.4%, with its strength reaching 89.9% of the base metal. The joint successfully passes 180° face-bend and root-bend tests, indicating favorable ductility. The fatigue limit of the joint is determined as 65.2 MPa. High-cycle fatigue cracks preferentially initiate at or near the specimen surface, and the fatigue crack propagation zone exhibits clear radial striation features.

, authors=Wei Han¹, Changjun Huang², Weineng Tang², Lei Wu², authorsList=Wei Han, Changjun Huang, Weineng Tang, Lei Wu, authorCompany=null, correspAuthors=Weineng Tang, 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=1309475100878008412, articleId=1309475099128983642, tenantId=1146029695717560320, journalId=1189873562199433220, language=CN, title=AZ41M镁合金TIG焊接头组织与性能研究, columnId=1309475083433894201, journalTitle=汽车工艺与材料, columnName=整车连接技术专题, runingTitle=null, highlight=null, articleAbstract=

为研究AZ41M镁合金钨极惰性气体保护（TIG）焊接头的组织演化规律与力学性能响应，采用交流TIG焊，对直径3 mm的AZ81焊丝与AZ41M板材进行对接焊接，在优化后的工艺条件下获得了成形良好、无明显外观缺陷且完全焊透的焊缝。通过金相显微观测、室温拉伸、弯曲测试及疲劳试验，系统表征了接头组织与性能。结果表明：焊接接头屈服强度为124 MPa，抗拉强度为231 MPa，延伸率为17.4%，强度达到母材的89.9%；接头顺利通过了180°面弯及背弯测试，塑性良好；接头疲劳极限为65.2 MPa，高周疲劳裂纹优先萌生于试样表面或近表面，疲劳裂纹扩展区呈现清晰放射状条纹特征。

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韩伟（1982—），男，学士学位，正高级工程师，研究方向为轨道交通车辆轻量化及电气系统集成。

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韩伟（1982—），男，学士学位，正高级工程师，研究方向为轨道交通车辆轻量化及电气系统集成。

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