Effect of stress level on anisotropy in creep ageing behaviour of 2195-T84 Al-Li alloy

doi:10.1016/j.matchar.2023.113426

IMR OpenIR

	Effect of stress level on anisotropy in creep ageing behaviour of 2195-T84 Al-Li alloy
	Li, He 1; Zhang, Han 1; Peng, Wenfei 1; Jiang, Zhenru 1; Feng, Guangming 2; Hu, Jiangpin 2; Ma, Kai 3; Zhan, Lihua 4
通讯作者	Peng, Wenfei(pengwenfei@nbu.edu.cn) ; Zhan, Lihua(yjs-cast@csu.edu.cn)
	2023-12-01
发表期刊	MATERIALS CHARACTERIZATION
ISSN	1044-5803
卷号	206 页码:14
摘要	In the present work, the anisotropic creep ageing behaviour and microstructural evolution of 2195-T84 Al-Li alloy are investigated under different tensile stresses. It is found that the anisotropic creep behaviour of 2195-T84 Al-Li alloy changes significantly with the increase of the applied stress. Microstructural observations confirmed that the movable non-octahedral slip systems increases with the applied stress. The obtained results show that with the increase of the applied stress, the dislocation density in the alloy increases obviously, and the 0' phase coarsens significantly in the late stage of creep ageing process. In addition, there is obvious dislocation slip band in the precipitation free zone (PFZ) with high stress level. The non-octahedral slip and grain boundary slip under high stress level change the dislocation mobility of different orientations, which is the main reasons for the change of the creep anisotropy of the alloy. The results revealed a new mechanism accountable for the distinctly anisotropic creep ageing behaviour.
关键词	2195-T84 Al -Li alloy Creep -ageing anisotropy Microstructures Stress level
资助者	Key Laboratory of Impact and Safety Engineering, Ministry of Education and Part Rolling Key Laboratory of Zhejiang, Ningbo University, Ningbo, China ; National Natural Science Foundation of China ; Ningbo Science and Technology Plan ; Provincial Universities Basic Scientific Research Strategy ; Natural Science Foundation of Ningbo
DOI	10.1016/j.matchar.2023.113426
收录类别	SCI
语种	英语
资助项目	Key Laboratory of Impact and Safety Engineering, Ministry of Education and Part Rolling Key Laboratory of Zhejiang, Ningbo University, Ningbo, China ; National Natural Science Foundation of China[52205386] ; National Natural Science Foundation of China[52075272] ; National Natural Science Foundation of China[SJLZ2021002] ; National Natural Science Foundation of China[2023J079] ; Ningbo Science and Technology Plan[U22A20190] ; Ningbo Science and Technology Plan[U21A201586] ; Provincial Universities Basic Scientific Research Strategy[2021Z099] ; Natural Science Foundation of Ningbo[2023Z037]
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:001108184100001
出版者	ELSEVIER SCIENCE INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/184109
专题	中国科学院金属研究所
通讯作者	Peng, Wenfei; Zhan, Lihua
作者单位	1.Ningbo Univ, Sch Mech Engn & Mech, Ningbo 315211, Peoples R China 2.Ningbo LK Technol Co Ltd, Ningbo 315806, Zhejiang, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 4.Cent South Univ, Light Alloy Res Inst, Changsha 410083, Peoples R China
推荐引用方式 GB/T 7714	Li, He,Zhang, Han,Peng, Wenfei,et al. Effect of stress level on anisotropy in creep ageing behaviour of 2195-T84 Al-Li alloy[J]. MATERIALS CHARACTERIZATION,2023,206:14.
APA	Li, He.,Zhang, Han.,Peng, Wenfei.,Jiang, Zhenru.,Feng, Guangming.,...&Zhan, Lihua.(2023).Effect of stress level on anisotropy in creep ageing behaviour of 2195-T84 Al-Li alloy.MATERIALS CHARACTERIZATION,206,14.
MLA	Li, He,et al."Effect of stress level on anisotropy in creep ageing behaviour of 2195-T84 Al-Li alloy".MATERIALS CHARACTERIZATION 206(2023):14.