Article(id=1309475147195707568, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475137360060880, articleNumber=null, orderNo=null, doi=10.19710/J.cnki.1003-8817.20260026, 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=1790132803962, onlineDateStr=2026-09-23, pubDate=1781884800000, pubDateStr=2026-06-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790132803962, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790132803962, creator=13701087609, updateTime=1790132803962, updator=13701087609, issue=Issue{id=1309475137360060880, tenantId=1146029695717560320, journalId=1189873562199433220, year='2026', volume='', issue='6', pageStart='1', pageEnd='72', issueExtLink='null', onlineDate='null', pubDate='1781884800000', pubDateStr='2026-06-20', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1790132801618, creator='13701087609', updateTime=1790132983936, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309475902124286252, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475137360060880, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309475902124286253, tenantId=1146029695717560320, journalId=1189873562199433220, issueId=1309475137360060880, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=45, endPage=53, ext={EN=ArticleExt(id=1309475147627720881, articleId=1309475147195707568, tenantId=1146029695717560320, journalId=1189873562199433220, language=EN, title=Research on Purification and Remelting Technology of TC4-DT Titanium Alloy Scrap, columnId=null, journalTitle=Automobile Technology & Material, columnName=null, runingTitle=null, highlight=null, articleAbstract=

In response to the urgent demand for high-performance and cost-effective titanium alloys in the rail transit sector, this paper focuses on the recycling and utilization of TC4-DT titanium alloy returned scrap. A self-developed purification line is employed to process the turning scrap from ingot peeling. The purified scrap is blended with sponge titanium at a 30% ratio, followed by melting via a dual Electron Beam Cold Hearth Melting (EBCHM) and Vacuum Arc Remelting (VAR) process. Typical forgings are then prepared through open-die forging. To evaluate the removal capability of High-Density Inclusions (HDI) during EBCHM melting, a simulated test is designed. Results demonstrate that HDIs larger than 0.5 mm in diameter can be effectively captured by the cold hearth, while those smaller than 0.5 mm are dissolved under high temperature. High-precision industrial computed tomography is applied to conduct non-destructive inspection on three forgings. The results reveal a dense micro-structure, free from defects such as inclusions, pores, and cracks, confirming the reliability of the proposed purification and dual melting process.

, authors=Jintao Wang, authorsList=Jintao Wang, authorCompany=null, correspAuthors=null, 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=1309475148386889906, articleId=1309475147195707568, tenantId=1146029695717560320, journalId=1189873562199433220, language=CN, title=TC4-DT钛合金返回料纯净化与熔炼技术研究, columnId=1190284221747925509, journalTitle=汽车工艺与材料, columnName=材料应用, runingTitle=null, highlight=null, articleAbstract=

针对交通领域对高性能、低成本钛合金材料的迫切需求，围绕TC4-DT钛合金返回屑料的回收利用问题展开研究。通过自主设计的纯净化处理生产线对铸锭扒皮屑料进行处理，采用30%比例返回屑料与海绵钛混合，结合电子束冷床（EB）熔炼与真空自耗电弧熔炼（VAR）双联工艺制备铸锭，并通过锻造工艺制备典型锻件。为验证EB熔炼对高密度夹杂物（HDI）的去除能力，设计模拟试验，结果表明：直径大于0.5 mm的HDI可被冷床有效捕获，小于0.5 mm的HDI可在高温下溶解。采用高精度工业计算机断层扫描（CT）对3件锻件进行无损检测，结果显示其结构致密，无夹杂、孔洞及裂纹等缺陷，验证了该返回屑料纯净化与双联熔炼工艺的可靠性。

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王劲涛（1993—），男，工程师，硕士学位，研究方向为轨道交通材料及腐蚀、金属钎焊等。

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王劲涛（1993—），男，工程师，硕士学位，研究方向为轨道交通材料及腐蚀、金属钎焊等。

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