Article(id=1314907292848452325, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907112854089785, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2025.06.030, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1748707200000, receivedDateStr=2025-06-01, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791427928411, onlineDateStr=2026-10-08, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791427928411, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791427928411, creator=13701087609, updateTime=1791427928411, updator=13701087609, issue=Issue{id=1314907112854089785, tenantId=1146029695717560320, journalId=1235980550691926019, year='2025', volume='45', issue='6', pageStart='1', pageEnd='228', issueExtLink='null', onlineDate='null', pubDate='1764518400000', pubDateStr='2025-12-01', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1791427885497, creator='13701087609', updateTime=1791430521754, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1314918170201252492, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907112854089785, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1314918170201252493, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907112854089785, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=167, endPage=171, ext={EN=ArticleExt(id=1314907293175608038, articleId=1314907292848452325, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Effect of Pre-aging Process in RRA Treatment for 7B50 Aluminum Alloy Plate, columnId=1236276108207902848, journalTitle=Mining and Metallurgical Engineering, columnName=MATERIALS, runingTitle=null, highlight=null, articleAbstract=

Retrogression and re-aging (RRA) treatment is adopted for 7B50 aluminum alloy plate. To obtain the parameters of pre-aging process in RRA treatment, the effect of pre-aging process on the microstructural evolution and properties of 7B50 aluminum alloy were systematically investigated via Vickers hardness testing, electrical conductivity measurement, transmission electron microscopy for characterization, and differential scanning calorimetry technique. The results show that pre-aging at 110 ℃ for 16 h, compared to at 120 ℃ for 24 h, can result in the precipitates in the alloy smaller in size and completely redissolved after retrogression process. It is also found that pre-aging at 110 ℃ for 16 h is conducive to the aggregation, growth and complete discontinuity of grain boundary precipitates at elevated temperatures, thus suitable for production engineering of RRA treatment of large-size thick plates.

, authors=Hao ZHENG¹, Song SHEN², Bin GU¹, Jian YANG¹, Hao JI¹, authorsList=Hao ZHENG, Song SHEN, Bin GU, Jian YANG, Hao JI, 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=1314907293846696679, articleId=1314907292848452325, tenantId=1146029695717560320, journalId=1235980550691926019, language=CN, title=RRA过程中7B50铝合金厚板预时效工艺研究, columnId=1236276110049202322, journalTitle=矿冶工程杂志, columnName=材料, runingTitle=null, highlight=null, articleAbstract=

采用回归再时效（RAA）处理7B50铝合金板材时，为了获得RRA的预时效工艺参数，通过维氏硬度、电导率测试及透射电镜表征、差式扫描热量法等，研究RRA处理中不同预时效工艺对7B50铝合金微观组织演变和性能的影响。结果表明：相比于120 ℃/24 h预时效，110 ℃/16 h预时效后合金析出相尺寸更小，回归处理后回溶更充分，有利于晶界析出相在高温下聚集长大并完全断开，适用于大规格厚板RRA工程化生产。

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郑皓（1990—），男，辽宁大连人，硕士，工程师，主要研究方向为铝合金在飞机上的应用。E-mail: 540042936@qq.com

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郑皓（1990—），男，辽宁大连人，硕士，工程师，主要研究方向为铝合金在飞机上的应用。E-mail: 540042936@qq.com

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