Influences of thermo-mechanical treatment process on the microstructure evolution and tensile properties of 7075 Al alloy

doi:10.1016/j.mtcomm.2025.111663

IMR OpenIR

	Influences of thermo-mechanical treatment process on the microstructure evolution and tensile properties of 7075 Al alloy
	Jin, J. W.1; Zhang, Z. J.2,3; Hou, J. P.2,3; Gong, B. S.2,3; Wang, H. W.2; Zhou, X. H.2; Purcek, G.4; Sheinerman, A. G.5; Zhang, Z. F.2,3
通讯作者	Zhang, Z. J.(zjzhang@imr.ac.cn) ; Hou, J. P.(jphou@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
	2025-02-01
发表期刊	MATERIALS TODAY COMMUNICATIONS
卷号	43 页码:11
摘要	Three types of 7075 Al alloys with average grain sizes of 11.6 mu m, 26.7 mu m and 49.8 mu m were successfully fabricated through a thermo-mechanical treatment (TMT) process. Systematic room-temperature tensile tests were conducted on those alloys with different grain sizes and aging states. Regardless of the grain size, the relationship between strength and plasticity followed a "barb" trend with increasing aging time. At the under aged (UA) state, it has the best matching, with the highest strength-plasticity product. Grain refinement improved the matching at the over aging (OA) state, and microstructure regulation did not alter the tensile fracture mode. At the OA state, grain refinement reduced the strain-hardening exponent. Both grain refinement and aging influenced the work hardening rate, attributed to the high density of mobile dislocations at the UA state. As aging progressed, slip characteristics transformed from planar to cross-slip mode. This study clarifies the relationship between microstructure and mechanical properties, providing insights for optimizing the mechanical performance of high-strength Al alloys with better plasticity.
关键词	7075 Al alloy Thermo-mechanical treatment Microstructure regulation Tensile property Work-hardening rate
资助者	National Natural Science Foundation of China (NSFC) ; Youth Innovation Promotion Association CAS ; IMR Innovation Fund ; Chinese Academy of Sciences (CAS) ; Scientific and Technological Research Council of Turkey (TUBITAK)
DOI	10.1016/j.mtcomm.2025.111663
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC)[52271121] ; National Natural Science Foundation of China (NSFC)[52322105] ; National Natural Science Foundation of China (NSFC)[52321001] ; National Natural Science Foundation of China (NSFC)[52130002] ; Youth Innovation Promotion Association CAS[2021192] ; IMR Innovation Fund[2023-ZD01] ; IMR Innovation Fund[2024-PY08] ; Chinese Academy of Sciences (CAS)[174321KYSB20210002] ; Scientific and Technological Research Council of Turkey (TUBITAK)[121N772]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001408369600001
出版者	ELSEVIER
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/321006/180547
专题	中国科学院金属研究所
通讯作者	Zhang, Z. J.; Hou, J. P.; Zhang, Z. F.
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 4.Karadeniz Tech Univ, Dept Mech Engn, TR-61080 Trabzon, Turkiye 5.Russian Acad Sci, Inst Problems Mech Engn, St Petersburg 199178, Russia
推荐引用方式 GB/T 7714	Jin, J. W.,Zhang, Z. J.,Hou, J. P.,et al. Influences of thermo-mechanical treatment process on the microstructure evolution and tensile properties of 7075 Al alloy[J]. MATERIALS TODAY COMMUNICATIONS,2025,43:11.
APA	Jin, J. W..,Zhang, Z. J..,Hou, J. P..,Gong, B. S..,Wang, H. W..,...&Zhang, Z. F..(2025).Influences of thermo-mechanical treatment process on the microstructure evolution and tensile properties of 7075 Al alloy.MATERIALS TODAY COMMUNICATIONS,43,11.
MLA	Jin, J. W.,et al."Influences of thermo-mechanical treatment process on the microstructure evolution and tensile properties of 7075 Al alloy".MATERIALS TODAY COMMUNICATIONS 43(2025):11.