New method for fabricating 6061-7075-composite with enhanced microstructure, mechanical properties, and electrochemical resistance using additive friction stir deposition and heat treatment

IF 6.1 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: A Pub Date : 2025-04-11 DOI:10.1016/j.msea.2025.148326

Q. Qiao , L. Wang , Z. Zhu , Y. Lin , K.L. Fu , H. Qian , Z. Li , D. Guo , D. Zhang , C.T. Kwok , L.M. Tam

{"title":"New method for fabricating 6061-7075-composite with enhanced microstructure, mechanical properties, and electrochemical resistance using additive friction stir deposition and heat treatment","authors":"Q. Qiao , L. Wang , Z. Zhu , Y. Lin , K.L. Fu , H. Qian , Z. Li , D. Guo , D. Zhang , C.T. Kwok , L.M. Tam","doi":"10.1016/j.msea.2025.148326","DOIUrl":null,"url":null,"abstract":"<div><div>Additive friction stir deposition (AFSD), a solid-state additive manufacturing (AM) technology, is widely used to develop high-performance large-scale deposits. A new 6061-7075-composite with excellent and optimally integrated characteristics was fabricated by AFSD with post-heat treatment. The analysis revealed that the heat-treated specimen (AFSD 6061 + 7075-HT) exhibited a higher precipitate fraction and greater plastic deformation than the as-fabricated specimen (AFSD 6061 + 7075). Mechanical tests confirmed that AFSD 6061 + 7075-HT exhibited a microhardness of 115 HV<sub>0.5</sub>, yield strength of 289 MPa, ultimate tensile strength of 368 MPa, and elongation of 22 %, which were comparable to forged AA6061. Additionally, AFSD 6061 + 7075-HT demonstrated improved electrochemical resistance owing to its uniform microstructure, precipitate formation, and denser oxide layer. These findings offer valuable insights for the large-scale fabrication of Al-based composite components with superior properties.</div></div>","PeriodicalId":385,"journal":{"name":"Materials Science and Engineering: A","volume":"935 ","pages":"Article 148326"},"PeriodicalIF":6.1000,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science and Engineering: A","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0921509325005507","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Additive friction stir deposition (AFSD), a solid-state additive manufacturing (AM) technology, is widely used to develop high-performance large-scale deposits. A new 6061-7075-composite with excellent and optimally integrated characteristics was fabricated by AFSD with post-heat treatment. The analysis revealed that the heat-treated specimen (AFSD 6061 + 7075-HT) exhibited a higher precipitate fraction and greater plastic deformation than the as-fabricated specimen (AFSD 6061 + 7075). Mechanical tests confirmed that AFSD 6061 + 7075-HT exhibited a microhardness of 115 HV_0.5, yield strength of 289 MPa, ultimate tensile strength of 368 MPa, and elongation of 22 %, which were comparable to forged AA6061. Additionally, AFSD 6061 + 7075-HT demonstrated improved electrochemical resistance owing to its uniform microstructure, precipitate formation, and denser oxide layer. These findings offer valuable insights for the large-scale fabrication of Al-based composite components with superior properties.

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Materials Science and Engineering: A 工程技术-材料科学：综合

CiteScore

11.50

自引率

15.60%

发文量

1811

审稿时长

31 days

期刊介绍： Materials Science and Engineering A provides an international medium for the publication of theoretical and experimental studies related to the load-bearing capacity of materials as influenced by their basic properties, processing history, microstructure and operating environment. Appropriate submissions to Materials Science and Engineering A should include scientific and/or engineering factors which affect the microstructure - strength relationships of materials and report the changes to mechanical behavior.