Influence of high-temperature and short-time solution treatment on microstructure and properties of Al−Mg−Zn−Ag alloy

IF 4.7 1区材料科学 Q1 METALLURGY & METALLURGICAL ENGINEERING

Transactions of Nonferrous Metals Society of China Pub Date : 2025-02-01 DOI:10.1016/S1003-6326(24)66685-9

Cheng GUO , Yi-fei CHEN , Yu-qin GUO , Huan WANG , Hai-tao ZHANG , Jing-qi CHEN , Zi-bin WU , Xin-gang LIU , Hiromi NAGAUMI

{"title":"Influence of high-temperature and short-time solution treatment on microstructure and properties of Al−Mg−Zn−Ag alloy","authors":"Cheng GUO , Yi-fei CHEN , Yu-qin GUO , Huan WANG , Hai-tao ZHANG , Jing-qi CHEN , Zi-bin WU , Xin-gang LIU , Hiromi NAGAUMI","doi":"10.1016/S1003-6326(24)66685-9","DOIUrl":null,"url":null,"abstract":"<div><div>High-temperature and short-time (HTST) solution heat treatment combined with non-isothermal aging (NIA) was employed to regulate the microstructure and properties of Al−4.5Mg−2.0Zn−0.3Ag alloy. Results indicate that HTST solution heat treatment can not only retain partial deformation dislocations, but inhibit the recrystallization behavior and increase the proportion of low-angle grain boundaries (LAGBs). In the subsequent NIA process, HTST solution heat treatment combined with NIA is instrumental in restraining the degradation of dislocations and promoting precipitation of nano-scale <em>T’</em>-Mg<sub>32</sub>(Al,Zn,Ag)<sub>49</sub> phase, which improves the strength of the alloy greatly. In addition, a higher fraction of LAGBs and the discontinuous distribution of grain boundary precipitates caused by this novel technology meliorate the corrosion resistance of Al−4.5Mg−2.0Zn−0.3Ag alloy.</div></div>","PeriodicalId":23191,"journal":{"name":"Transactions of Nonferrous Metals Society of China","volume":"35 2","pages":"Pages 362-376"},"PeriodicalIF":4.7000,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transactions of Nonferrous Metals Society of China","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1003632624666859","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}

引用次数: 0

Abstract

High-temperature and short-time (HTST) solution heat treatment combined with non-isothermal aging (NIA) was employed to regulate the microstructure and properties of Al−4.5Mg−2.0Zn−0.3Ag alloy. Results indicate that HTST solution heat treatment can not only retain partial deformation dislocations, but inhibit the recrystallization behavior and increase the proportion of low-angle grain boundaries (LAGBs). In the subsequent NIA process, HTST solution heat treatment combined with NIA is instrumental in restraining the degradation of dislocations and promoting precipitation of nano-scale T’-Mg₃₂(Al,Zn,Ag)₄₉ phase, which improves the strength of the alloy greatly. In addition, a higher fraction of LAGBs and the discontinuous distribution of grain boundary precipitates caused by this novel technology meliorate the corrosion resistance of Al−4.5Mg−2.0Zn−0.3Ag alloy.

查看原文本刊更多论文

高温短时固溶处理对Al - Mg - Zn - Ag合金组织和性能的影响

采用高温短时固溶热处理（HTST）结合非等温时效（NIA）对Al−4.5Mg−2.0Zn−0.3Ag合金的组织和性能进行调控。结果表明，HTST固溶热处理不仅保留了部分变形位错，而且抑制了再结晶行为，增加了低角晶界的比例。在随后的NIA工艺中，HTST固溶热处理结合NIA抑制了位错的退化，促进了纳米级T’-Mg32(Al,Zn,Ag)49相的析出，大大提高了合金的强度。此外，该新工艺导致的lagb含量增加和晶界析出物不连续分布降低了Al−4.5Mg−2.0Zn−0.3Ag合金的耐蚀性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Transactions of Nonferrous Metals Society of China 工程技术-冶金工程

CiteScore

7.40

自引率

17.80%

发文量

8456

审稿时长

3.6 months

期刊介绍： The Transactions of Nonferrous Metals Society of China (Trans. Nonferrous Met. Soc. China), founded in 1991 and sponsored by The Nonferrous Metals Society of China, is published monthly now and mainly contains reports of original research which reflect the new progresses in the field of nonferrous metals science and technology, including mineral processing, extraction metallurgy, metallic materials and heat treatments, metal working, physical metallurgy, powder metallurgy, with the emphasis on fundamental science. It is the unique preeminent publication in English for scientists, engineers, under/post-graduates on the field of nonferrous metals industry. This journal is covered by many famous abstract/index systems and databases such as SCI Expanded, Ei Compendex Plus, INSPEC, CA, METADEX, AJ and JICST.