Effect of aging state on fatigue property of wrought aluminum alloys

doi:10.1016/j.ijfatigue.2021.106682

IMR OpenIR

	Effect of aging state on fatigue property of wrought aluminum alloys
	Gong, B. S.1,2; Zhang, Z. J.1,2; Qu, Z.1,2; Hou, J. P.1; Yang, H. J.1; Shao, X. H.1; Zhang, Z. F.1,2
通讯作者	Zhang, Z. J.(zjzhang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
	2022-03-01
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
ISSN	0142-1123
卷号	156 页码:13
摘要	The high-cycle fatigue (HCF) behaviors of wrought Al alloys are vitally important for their industrial application. To optimize the fatigue property of the wrought Al alloy, the effects of aging conditions on the fatigue properties of 7N01, 7075 and 2024 Al alloys were studied. The results show that the overaged samples have the lowest tensile strength among the three aging states, but their fatigue strength is the highest. Further investigations on the dislocation morphologies indicates that the dislocations are easy to accumulate and annihilate at the second phase boundaries for the overaged state, which reduces the fatigue damage degree at the grain boundaries. Besides, the discontinuous distribution of the grain boundary precipitates and the increased width of the precipitate-free zone also contributed to the improved fatigue property of the overaged state. Those results should be significantly important for the optimization of their fatigue properties and the industrial application of wrought Al alloys.
关键词	Wrought Al alloy Aging state Tensile strength Fatigue strength Second phase Grain boundaries Dislocation annihilation
资助者	Youth Innovation Pro-motion Association CAS ; National Natural Science Foundation of China (NSFC) ; KC Wong Education Foun-dation
DOI	10.1016/j.ijfatigue.2021.106682
收录类别	SCI
语种	英语
资助项目	Youth Innovation Pro-motion Association CAS[2021192] ; National Natural Science Foundation of China (NSFC)[51790482] ; National Natural Science Foundation of China (NSFC)[51871223] ; National Natural Science Foundation of China (NSFC)[52130002] ; National Natural Science Foundation of China (NSFC)[52001313] ; KC Wong Education Foun-dation[GJTD-2020-09]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000782280900003
出版者	ELSEVIER SCI LTD
引用统计	被引频次：23[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/321006/172867
专题	中国科学院金属研究所
通讯作者	Zhang, Z. J.; Zhang, Z. F.
作者单位	1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Gong, B. S.,Zhang, Z. J.,Qu, Z.,et al. Effect of aging state on fatigue property of wrought aluminum alloys[J]. INTERNATIONAL JOURNAL OF FATIGUE,2022,156:13.
APA	Gong, B. S..,Zhang, Z. J..,Qu, Z..,Hou, J. P..,Yang, H. J..,...&Zhang, Z. F..(2022).Effect of aging state on fatigue property of wrought aluminum alloys.INTERNATIONAL JOURNAL OF FATIGUE,156,13.
MLA	Gong, B. S.,et al."Effect of aging state on fatigue property of wrought aluminum alloys".INTERNATIONAL JOURNAL OF FATIGUE 156(2022):13.