High temperature stress relaxation behavior of high Si, Mo-doped austenitic stainless steels

doi:10.1016/j.msea.2024.147330

IMR OpenIR

	High temperature stress relaxation behavior of high Si, Mo-doped austenitic stainless steels
	Zhang, Shuzhan 1,3; Zhu, Heyu 2; Su, Yuanfei 1,2,3; Shi, Xianbo 1,3; Liu, Peitao 4; Yan, Wei 1,3; Rong, Lijian 1,3; Yang, Ke 3
通讯作者	Shi, Xianbo(xbshi@imr.ac.cn) ; Yan, Wei(weiyan@imr.ac.cn)
	2024-11-01
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	916 页码:13
摘要	The resistance to stress relaxation at high temperatures is of importance to fasteners. In this study, the stress relaxation behavior of high Si, Mo-doped austenitic stainless steels at 450, 510, 550, 600 and 650 degrees C were investigated, taking the microstructure evolution at high-temperature long-term condition into account. It is found that Mo can effectively mitigate the plastic strain rate at high temperatures by impeding the extension of partial dislocations, thus leading to a noteworthy enhancement in the stress relaxation resistance. The firstprinciples calculations indicated that the addition of Mo can suppress the formation of a multi-phase composed of G phase and ferrite at high temperatures, by increasing the segregation energy of Si, Cr, and Ni at grain boundaries. This multi-phase induces the formation of stacking faults and twins, and therefore is responsible for an abnormal reduction in the residual stress.
关键词	High Si austenitic stainless steel Mo Stress relaxation G phase Ferrite Stacking faults Twins
资助者	LingChuang Research Project of China National Nuclear Corporation ; Natural Science Foundation of Liaoning Province ; Project of Novel corrosion-resistant low-active 1000 MPa Grade high strength steel for water resources and electric engineering from Guangdong Polytechnic of Water Resources and Electric Engineering ; Liaoning Province Science and Technology Planning Project
DOI	10.1016/j.msea.2024.147330
收录类别	SCI
语种	英语
资助项目	LingChuang Research Project of China National Nuclear Corporation ; Natural Science Foundation of Liaoning Province[2023-MS-019] ; Project of Novel corrosion-resistant low-active 1000 MPa Grade high strength steel for water resources and electric engineering from Guangdong Polytechnic of Water Resources and Electric Engineering[GZ06] ; Liaoning Province Science and Technology Planning Project[2023021207-JH26/103] ; Liaoning Province Science and Technology Planning Project[RC230958]
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:001332482100001
出版者	ELSEVIER SCIENCE SA
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/190549
专题	中国科学院金属研究所
通讯作者	Shi, Xianbo; Yan, Wei
作者单位	1.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shuzhan,Zhu, Heyu,Su, Yuanfei,et al. High temperature stress relaxation behavior of high Si, Mo-doped austenitic stainless steels[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,916:13.
APA	Zhang, Shuzhan.,Zhu, Heyu.,Su, Yuanfei.,Shi, Xianbo.,Liu, Peitao.,...&Yang, Ke.(2024).High temperature stress relaxation behavior of high Si, Mo-doped austenitic stainless steels.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,916,13.
MLA	Zhang, Shuzhan,et al."High temperature stress relaxation behavior of high Si, Mo-doped austenitic stainless steels".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 916(2024):13.