Effect of heat treatment on microstructure, mechanical properties and corrosion behavior of LACSed 7075 deposits

doi:10.1016/j.matchar.2024.114424

IMR OpenIR

	Effect of heat treatment on microstructure, mechanical properties and corrosion behavior of LACSed 7075 deposits
	Wang, Kang 1,2; Cui, Xinyu 1; Wang, Jiqiang 1; Xiong, Tianying 1
通讯作者	Wang, Jiqiang(jqwang11s@imr.ac.cn)
	2024-11-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	217 页码:13
摘要	Laser-assisted cold spray presents advantages in the additive manufacturing of high-strength 7075 aluminum alloy. In this paper, four heat treatment methods, including T6, T73, RRA, and annealing, were employed to further improve the mechanical properties and corrosion resistance of LACSed 7075 deposits. The relationship between their microstructures and performances was systematically investigated as well. SEM, EBSD, XRD, and TEM were used to observe the microstructure evolution of deposits after heat treatments in detail. Tensile test, IGC test, and potentiodynamic polarization curve test were performed to evaluate their mechanical and corrosion performances. The results showed that the grain structure maintained its anisotropy despite abnormal grain growth and static recrystallization following the heat treatments. The matrix precipitates and grain boundary precipitates showed distinct morphologies (size and shape) after different heat treatments, which had major impacts on the deposits' performances. The test results revealed that the T6 and RRA samples achieved highest yield strength of approximately 470 MPa. The elongation ratio of the LACSed deposits was greatly improved after annealing. The T73 and RRA samples exhibited much better corrosion resistance than the other samples. The evidence verified that typical post-heat treatments are feasible for improving the performance of LACSed 7075 deposits.
关键词	Laser-assisted cold spray Heat treatment Mechanical properties Corrosion behavior
资助者	Youth Innovation Pro-motion Association ; Chinese Academy of Sciences (CAS)
DOI	10.1016/j.matchar.2024.114424
收录类别	SCI
语种	英语
资助项目	Youth Innovation Pro-motion Association[2023199] ; Chinese Academy of Sciences (CAS)
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science, Characterization & Testing
WOS记录号	WOS:001336235600001
出版者	ELSEVIER SCIENCE INC
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/190740
专题	中国科学院金属研究所
通讯作者	Wang, Jiqiang
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Kang,Cui, Xinyu,Wang, Jiqiang,et al. Effect of heat treatment on microstructure, mechanical properties and corrosion behavior of LACSed 7075 deposits[J]. MATERIALS CHARACTERIZATION,2024,217:13.
APA	Wang, Kang,Cui, Xinyu,Wang, Jiqiang,&Xiong, Tianying.(2024).Effect of heat treatment on microstructure, mechanical properties and corrosion behavior of LACSed 7075 deposits.MATERIALS CHARACTERIZATION,217,13.
MLA	Wang, Kang,et al."Effect of heat treatment on microstructure, mechanical properties and corrosion behavior of LACSed 7075 deposits".MATERIALS CHARACTERIZATION 217(2024):13.