Article(id=1314907278709453496, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1314907112854089785, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2025.06.034, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1747238400000, receivedDateStr=2025-05-15, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1791427925040, onlineDateStr=2026-10-08, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1791427925040, onlineIssueDateStr=2026-10-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1791427925040, creator=13701087609, updateTime=1791427925040, 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=196, endPage=202, ext={EN=ArticleExt(id=1314907279170826937, articleId=1314907278709453496, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Influence of Trace La/Ce on Precipitation Behavior and Activation Energy of A356.2 Alloy, columnId=1236276108207902848, journalTitle=Mining and Metallurgical Engineering, columnName=MATERIALS, runingTitle=null, highlight=null, articleAbstract=

The influence of adding trace of La/Ce on the as-cast microstructure, precipitation behavior and thermodynamic properties of A356.2 alloy was systematically investigated by means of metallographic observation, transmission electron microscopy, differential scanning calorimetry among others. The results show that adding trace of La or Ce has little effect on the morphology of primary α-Al and eutectic Si in the as-cast microstructure, but can induce the formation of new La- or Ce-containing phases, i.e. Al₂LaSi₂ and Al₂CeSi₂. During aging process, an addition of La/Ce significantly delays the precipitation of β″, β′ and β phases, resulting in a postponed occurrence of hardness peak and a slight decrease in hardness. TEM analysis shows that an addition of La/Ce refines the precipitated phases, with more uniform size and distribution. By calculation of the activation energy for precipitate formation, it is found that La/Ce addition increases the thermal stability of the precipitated phases, and Ce brings a more pronounced effect than La. Although traces of La and Ce do not significantly refine the grains in A356.2 alloy, they effectively enhance the stability and refinement degree of the precipitated phases, exhibiting the potential in regulating the strengthening behavior of alloy.

, authors=Qi GU, Pengfei ZHOU, authorsList=Qi GU, Pengfei ZHOU, authorCompany=null, correspAuthors=Pengfei ZHOU, 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=1314907279640588987, articleId=1314907278709453496, tenantId=1146029695717560320, journalId=1235980550691926019, language=CN, title=微量La/Ce对A356.2合金析出行为及活化能的影响, columnId=1236276110049202322, journalTitle=矿冶工程杂志, columnName=材料, runingTitle=null, highlight=null, articleAbstract=

采用金相观察、透射电镜、差示扫描量热法等手段，系统探讨了添加微量La/Ce对A356.2合金析出相形貌、硬度变化和析出动力学的作用。结果表明，添加微量La或Ce对铸态组织中的初生α-Al和共晶Si形貌影响不大，但能诱导形成新的含La或Ce的Al₂LaSi₂和Al₂CeSi₂相。时效过程中，La/Ce的引入显著延缓了β″、β′和β相的析出，硬度峰值出现时间推迟且硬度略有降低。TEM分析结果显示，La/Ce的添加使析出相细化，且其长度和分布更加均匀。通过计算析出相的形成活化能发现，添加微量La/Ce提高了析出相的热稳定性，且Ce的效应强于La。微量的La和Ce在A356.2合金中虽然未显著细化晶粒，但有效提高了析出相的稳定性和细化程度，具有调控合金强化行为的潜在应用价值。

, authors=顾琪, 周鹏飞, authorsList=顾琪, 周鹏飞, authorCompany=null, correspAuthors=周鹏飞, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=gUJxJstF/nnM1jm1fjBhoA==, magXml=CjmXIUW6zvlFQacZ/ZjSFA==, pdfUrl=null, pdf=5qVKyqCNzUgxpwHRmYjH+A==, pdfFileSize=5505839, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=v4rrugfuL+ly381rAYWuZQ==, mapNumber=null, fund=null)}, authors=[Author(id=1314907281649660608, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1314907278709453496, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=283509362@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1314907281767101122, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1314907278709453496, authorId=1314907281649660608, language=EN, stringName=Qi GU, firstName=Qi, middleName=null, lastName=GU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=School of Intelligent Manufacturing, Yancheng Polytechnic College, Yancheng 224005, Jiangsu, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1314907282098451139, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1314907278709453496, authorId=1314907281649660608, language=CN, stringName=顾琪, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=盐城工业职业技术学院智能制造学院，江苏 盐城 224005, bio={"content":"

顾琪（1983—），男，江苏盐城人，硕士，副教授，主要从事高性能轻质合金材料研发工作。E-mail: 283509362@qq.com

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顾琪（1983—），男，江苏盐城人，硕士，副教授，主要从事高性能轻质合金材料研发工作。E-mail: 283509362@qq.com

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