Article(id=1304141568693265370, tenantId=1146029695717560320, journalId=1303687303576780880, issueId=1304141567850213817, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1009-3842.2026.03.005, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1762876800000, receivedDateStr=2025-11-12, revisedDate=1770998400000, revisedDateStr=2026-02-14, acceptedDate=null, acceptedDateStr=null, onlineDate=1788861179755, onlineDateStr=2026-09-08, pubDate=1782576000000, pubDateStr=2026-06-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1788861179755, onlineIssueDateStr=2026-09-08, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1788861179755, creator=13701087609, updateTime=1788861179755, updator=13701087609, issue=Issue{id=1304141567850213817, tenantId=1146029695717560320, journalId=1303687303576780880, year='2026', volume='', issue='3', pageStart='1', pageEnd='134', issueExtLink='null', onlineDate='null', pubDate='1782576000000', pubDateStr='2026-06-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1788861179554, creator='13701087609', updateTime=1788924930580, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1304408959088092087, tenantId=1146029695717560320, journalId=1303687303576780880, issueId=1304141567850213817, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1304408959088092088, tenantId=1146029695717560320, journalId=1303687303576780880, issueId=1304141567850213817, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=39, endPage=47, ext={EN=ArticleExt(id=1304141568957506524, articleId=1304141568693265370, tenantId=1146029695717560320, journalId=1303687303576780880, language=EN, title=Mechanisms of Initial Dislocation Nucleation in Copper under Synergistic Effects of Cascade Collisions and Transmuted Helium, columnId=1304141568877814747, journalTitle=Copper Engineering, columnName=Material Preparation and Process Engineering, runingTitle=null, highlight=null, articleAbstract=

Copper and copper alloys are considered the primary structural material for fusion reactor divertor heat sinks due to their excellent thermal conductivity, thermal stability, mechanical properties, and relatively good resistance to neutron irradiation. However, a lack of in-depth understanding regarding the mechanisms of displacement damage in copper induced by synergistic effects of neutron irradiation and transmuted helium still exists. In this study, the synergistic effects were investigated using molecular dynamics simulations, with a focus on dislocation nucleation mechanisms. Influences of transmuted helium concentration (2000~8000 appm), primary knock-on atom (PKA) energy (1.0~7.0 keV), and simulation temperature (100~900 K) were systematically examined. Results showed that increased helium concentration raised the number of point defects, enhanced pinning effect, and promoted dislocation density and the formation of complex entanglement structures. Higher PKA energy led to a notable rise in length and density of dislocation line. At lower temperatures, rising temperature promoted development of dislocation entanglement structures in the cascade center, while at higher temperatures, it facilitated dislocation annihilation and break-up, resulting in the collapse of these entanglement structures. These findings provided important insights for the design of irradiation-resistant copper alloys for fusion reactors.

, authors=Tiancheng Wang, Xu Yu, Tianyi Hu, Hai Huang, authorsList=Tiancheng Wang, Xu Yu, Tianyi Hu, Hai Huang, authorCompany=null, correspAuthors=Hai Huang, 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=1304141569360159710, articleId=1304141568693265370, tenantId=1146029695717560320, journalId=1303687303576780880, language=CN, title=级联碰撞与嬗变氦协同作用下铜中初始位错形核机制研究, columnId=1304141569037198301, journalTitle=铜业工程, columnName=材料制备与加工工程, runingTitle=null, highlight=null, articleAbstract=

铜及其合金因具有优异的导热性、热稳定性、力学性能及良好的抗中子辐照能力，被认为是聚变堆偏滤器热沉部件的首选结构材料。但是，对于铜材料在中子辐照离位损伤与嬗变反应所产生的氦协同作用下的相关机制，目前仍缺乏深入理解。本研究基于分子动力学方法，对铜离位损伤与嬗变生成氦的协同效应进行研究，着重分析了协同作用下铜内部位错形核机制，特别探讨了嬗变氦原子浓度（2000~8000 appm）、PKA入射能量（1.0~7.0 keV）以及模拟温度（100~900 K）的影响。结果表明，氦浓度的升高会增加点缺陷数量，加剧钉扎效应，促进位错密度上升并形成复杂的纠缠结构。PKA入射能量的增大会导致位错线长度和密度显著增加。在低温段，温度升高会促进级联中心位错纠缠结构的发展；而在高温段，温度升高会促进位错湮灭和断裂，导致级联中心位错纠缠结构瓦解。这些发现为聚变堆用抗辐照铜合金的设计提供了参考。

, authors=王天成, 余旭, 胡天一, 黄海, authorsList=王天成, 余旭, 胡天一, 黄海, authorCompany=null, correspAuthors=黄海, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=fALiTYRAz2trPFMlzBl9oA==, magXml=j4Rw6KbElL+mHbwECfdKQA==, pdfUrl=null, pdf=8wq7dRja3ZlEc8SN1o/Jsg==, pdfFileSize=9595603, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=F4LqcPD2CamDxQgs52kOrA==, mapNumber=null, fund=null)}, authors=[Author(id=1304141569964139491, tenantId=1146029695717560320, journalId=1303687303576780880, articleId=1304141568693265370, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=wtc@stu.zzu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1304141570052219877, tenantId=1146029695717560320, journalId=1303687303576780880, articleId=1304141568693265370, authorId=1304141569964139491, language=EN, stringName=Tiancheng Wang, firstName=Tiancheng, middleName=null, lastName=Wang, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=Key Laboratory of Materials Physics，Ministry of Education，School of Physics，Zhengzhou University，Zhengzhou 450001，China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1304141570144494566, tenantId=1146029695717560320, journalId=1303687303576780880, articleId=1304141568693265370, authorId=1304141569964139491, language=CN, stringName=王天成, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=郑州大学 物理学院材料物理教育部重点实验室，河南 郑州 450001, bio={"content":"

王天成（2005—），男，河南平顶山人，学士，研究方向：核材料辐照效应，E-mail：wtc@stu.zzu.edu.cn

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王天成（2005—），男，河南平顶山人，学士，研究方向：核材料辐照效应，E-mail：wtc@stu.zzu.edu.cn

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