Effect of aging state on fatigue property of wrought aluminum alloys

doi:10.1016/j.ijfatigue.2021.106682

CORC > 金属研究所 > 中国科学院金属研究所

	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
刊名	INTERNATIONAL JOURNAL OF FATIGUE
	2022-03-01
卷号	156 页码:13
关键词	Wrought Al alloy Aging state Tensile strength Fatigue strength Second phase Grain boundaries Dislocation annihilation
ISSN号	0142-1123
DOI	10.1016/j.ijfatigue.2021.106682
通讯作者	Zhang, Z. J.(zjzhang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn)
英文摘要	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.
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
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000782280900003
资助机构	Youth Innovation Pro-motion Association CAS ; National Natural Science Foundation of China (NSFC) ; KC Wong Education Foun-dation
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/172866]
专题	金属研究所_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.