The influence of niobium on the plastic deformation behaviors of 310s austenitic stainless steel weld metals at different temperatures

doi:10.1016/j.msea.2018.11.131

IMR OpenIR

	The influence of niobium on the plastic deformation behaviors of 310s austenitic stainless steel weld metals at different temperatures
	Zhan, Xu 1,2,3; Li, Dianzhong 3; Li, Yiyi 3; Lu, Shanping 3
通讯作者	Lu, Shanping(shplu@imr.ac.cn)
	2019-01-16
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	743 页码:648-655
摘要	The deformation behaviors of 310s stainless steel weld metals (WMs) with different Nb contents are investigated under uniaxial tension at temperatures ranging from ambient temperature to 1000 degrees C. The results show that Nb effectively improves the strength of the WMs in the whole test temperatures range. The addition of Nb causes a change in the fractures of the WMs from intergranular brittle fractures to intragranular ductile fractures at elevated temperature. Hence, elemental Nb enhances the elevated temperature plasticity of the WMs. However, as the eutectic Nb(C, N) promotes the nucleation and propagation of the cracks, Nb decreases the elongation of the WMs at temperature below 700 degrees C. With the increase in the deformation temperature, the strength of the WMs decreases monotonously. However, the elongation of the WMs shows a nonmonotonic relationship with the temperatures. The deformation twins can occur at room temperature and improve the strength and elongation of the WMs. Meanwhile, the cracks nucleate around the eutectic Nb(C, N) at 1000 degrees C, leading to the minimum elongation of the Nb-bearing WMs in the whole test temperature range. The differential scanning calorimetry result suggests that the melting of the eutectic Nb(C, N) may be the dominant reason for the nucleation of the cracks and result in the reduction in the elongation of the Nb-bearing WM at 1000 degrees C.
关键词	310s austenitic weld metals Deformation twins Nb(C N) Temperature dependence Plasticity
资助者	Research and Development of Nuclear Materials and Service Safety Assurance Technology ; National Natural Science Foundation of China (NSFC)
DOI	10.1016/j.msea.2018.11.131
收录类别	SCI
语种	英语
资助项目	Research and Development of Nuclear Materials and Service Safety Assurance Technology[ZDRW-CN-2017-1] ; National Natural Science Foundation of China (NSFC)[51474203]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000456891500073
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：7[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/321006/131600
专题	中国科学院金属研究所
通讯作者	Lu, Shanping
作者单位	1.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Zhan, Xu,Li, Dianzhong,Li, Yiyi,et al. The influence of niobium on the plastic deformation behaviors of 310s austenitic stainless steel weld metals at different temperatures[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,743:648-655.
APA	Zhan, Xu,Li, Dianzhong,Li, Yiyi,&Lu, Shanping.(2019).The influence of niobium on the plastic deformation behaviors of 310s austenitic stainless steel weld metals at different temperatures.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,743,648-655.
MLA	Zhan, Xu,et al."The influence of niobium on the plastic deformation behaviors of 310s austenitic stainless steel weld metals at different temperatures".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 743(2019):648-655.