Temperature Dependence of Fracture Behavior and Mechanical Properties of AISI 316 Austenitic Stainless Steel

doi:10.3390/met12091421

IMR OpenIR

	Temperature Dependence of Fracture Behavior and Mechanical Properties of AISI 316 Austenitic Stainless Steel
	Lv, Xinliang 1,2; Chen, Shenghu 1; Wang, Qiyu 1,2; Jiang, Haichang 1,3; Rong, Lijian 1
通讯作者	Chen, Shenghu(chensh@imr.ac.cn) ; Rong, Lijian(ljrong@imr.ac.cn)
	2022-09-01
发表期刊	METALS
卷号	12 期号:9 页码:16
摘要	A combination of fractographic and metallographic analysis during tensile tests over the temperature ranging from 20 degrees C to 750 degrees C were carried out to investigate the fracture behaviors and deformation modes so as to clarify the temperature dependence of mechanical properties of AISI 316 austenitic stainless steel. Planar slip mode of deformation was observed during tensile tests at 20 degrees C due to a relatively low SFE (stacking fault energies). Pronounced planar slip characteristics were observed in the range of 350-550 degrees C, and the resultant localized deformation led to the formation of shear bands. The dislocation cross-slip was much easier above 550 degrees C, leading to the formation of cell/subgrain structures. The preferential microvoid initiation and subsequent anisotropic growth behavior in the shear bands led to large-size and shallow dimples on the fracture surfaces in the range of 350-550 degrees C. However, the microvoid tended to elongate along the tensile direction in the localized necking region above 550 degrees C, resulting in small-size and deep dimples. The shear localization reduced the uniform deformation ability and accelerated the fracture process along shear bands, leading to a plateau in uniform elongation and total elongation in the range of 350-550 degrees C. The higher capability to tolerate the localized deformation through sustained necking resulted in a significant increase in the total elongation above 550 degrees C.
关键词	austenitic stainless steels temperature dependence fracture mechanical properties shear localization
资助者	National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS ; LingChuang Research Project of China National Nuclear Corporation ; CNNC Science Fund for Talented Young Scholars
DOI	10.3390/met12091421
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51871218] ; Youth Innovation Promotion Association, CAS[2018227] ; LingChuang Research Project of China National Nuclear Corporation ; CNNC Science Fund for Talented Young Scholars
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000856841600001
出版者	MDPI
引用统计	被引频次：8[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/321006/175407
专题	中国科学院金属研究所
通讯作者	Chen, Shenghu; Rong, Lijian
作者单位	1.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Shandong Key Lab Adv Aluminum Mat & Technol, Binzhou 256606, Peoples R China
推荐引用方式 GB/T 7714	Lv, Xinliang,Chen, Shenghu,Wang, Qiyu,et al. Temperature Dependence of Fracture Behavior and Mechanical Properties of AISI 316 Austenitic Stainless Steel[J]. METALS,2022,12(9):16.
APA	Lv, Xinliang,Chen, Shenghu,Wang, Qiyu,Jiang, Haichang,&Rong, Lijian.(2022).Temperature Dependence of Fracture Behavior and Mechanical Properties of AISI 316 Austenitic Stainless Steel.METALS,12(9),16.
MLA	Lv, Xinliang,et al."Temperature Dependence of Fracture Behavior and Mechanical Properties of AISI 316 Austenitic Stainless Steel".METALS 12.9(2022):16.