Cyclic deformation and microstructural evolution of 316L stainless steel with pre-charged hydrogen

doi:10.1016/j.ijfatigue.2024.108311

IMR OpenIR

	Cyclic deformation and microstructural evolution of 316L stainless steel with pre-charged hydrogen
	Fu, Zhenghong 1; Jiang, Lvfeng 1; Sun, Yunlai 1; Jin, Junjun 2; Yu, Chao 1; Zhao, Mingjiu 3; Kan, Qianhua 1; Kang, Guozheng 1
通讯作者	Kan, Qianhua(qianhuakan@foxmail.com)
	2024-07-01
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
ISSN	0142-1123
卷号	184 页码:9
摘要	This study investigates the cyclic plastic deformation and microstructural evolution of hydrogen-charged 316L stainless steel. The results of low-cycle fatigue tests indicate that the samples with and without pre-charged hydrogen exhibit initial cyclic hardening and sequential cyclic softening at a low strain amplitude (<= 0.5 %). However, a secondary cyclic hardening at a high strain amplitude (>= 0.7 %) is observed near the end stage in both uncharged and hydrogen-charged samples. Microstructural evolutions characterized by electron backscattered diffraction and scanning transmission electron microscopy reveal the evident hydrogen-assisted dislocation nucleation and motion, which significantly enhances the accumulation of dislocation in the first cyclic hardening stage, resulting in fewer cycles to reach the first peak of responding stress amplitude. Moreover, the observed hydrogen-assisted twinning accelerates the formation of the secondary peak of stress amplitude. The hydrogenassisted dislocation and twinning evolutions contribute to a reduction in the fatigue life of the steel.
关键词	316L stainless steel Hydrogen charging Cyclic plastic deformation Microstructural evolution Hydrogen-dislocation interaction
资助者	Natural Science Foundation of Sichuan province in China ; Independent Project of State Key Laboratory of Rail Transit Vehicle System ; Fundamental Research Funds for the Central Universities ; Central government guides local government-Free exploration project
DOI	10.1016/j.ijfatigue.2024.108311
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Sichuan province in China[2023NSFSC1302] ; Independent Project of State Key Laboratory of Rail Transit Vehicle System[2023TPL-T03] ; Fundamental Research Funds for the Central Universities[2682023CX050] ; Fundamental Research Funds for the Central Universities[2682023CG004] ; Central government guides local government-Free exploration project[2023ZYD0133]
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001220914200001
出版者	ELSEVIER SCI LTD
引用统计	被引频次：9[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/321006/186018
专题	中国科学院金属研究所
通讯作者	Kan, Qianhua
作者单位	1.Southwest Jiaotong Univ, Sch Mech & Aerosp Engn, Appl Mech & Struct Safety Key Lab Sichuan Prov, Chengdu 611756, Peoples R China 2.Southwest Jiaotong Univ, Sch Mat Sci & Engn, Chengdu 611756, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Fu, Zhenghong,Jiang, Lvfeng,Sun, Yunlai,et al. Cyclic deformation and microstructural evolution of 316L stainless steel with pre-charged hydrogen[J]. INTERNATIONAL JOURNAL OF FATIGUE,2024,184:9.
APA	Fu, Zhenghong.,Jiang, Lvfeng.,Sun, Yunlai.,Jin, Junjun.,Yu, Chao.,...&Kang, Guozheng.(2024).Cyclic deformation and microstructural evolution of 316L stainless steel with pre-charged hydrogen.INTERNATIONAL JOURNAL OF FATIGUE,184,9.
MLA	Fu, Zhenghong,et al."Cyclic deformation and microstructural evolution of 316L stainless steel with pre-charged hydrogen".INTERNATIONAL JOURNAL OF FATIGUE 184(2024):9.