Evolution and Healing Mechanism of 1Cr22Mn16N High Nitrogen Austenitic Stainless Steel Interface Microstructure During Plastic Deformation Bonding

doi:10.11900/0412.1961.2023.00015

IMR OpenIR

	Evolution and Healing Mechanism of 1Cr22Mn16N High Nitrogen Austenitic Stainless Steel Interface Microstructure During Plastic Deformation Bonding
	Yang Ruize 1,2,3; Zhai Ruzong 1,2; Ren Shaofei 1,2; Sun Mingyue 1,2; Xu Bin 1,2; Qiao Yanxin 3; Yang Lanlan 3
通讯作者	Sun Mingyue(mysun@imr.ac.cn) ; Qiao Yanxin(yxqiao@just.edu.cn)
	2024-07-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	60 期号:7 页码:915-925
摘要	High nitrogen austenitic stainless steels (HNASSs) are widely used for their good wear resistance and high strength, plasticity, and corrosion resistance. Among these steels, 1Cr22Mn16N HNASS improves the cost effectiveness because of the incorporation of a N element in place of the expensive Ni element. In addition, the overall mechanical properties of the steel are further improved because of the solid solution-strengthening effect of the N element. However, the traditional welding methods such as arc welding, tungsten gas shielded welding, and friction stir welding are not suitable for 1Cr22Mn16N HNASS welding because of the different solubility of N in the liquid and solid phases. N easily spills out during the welding process, which considerably degrades the mechanical properties of the welded joints. Therefore, a new welding method needs to be explored to solve the problems in 1Cr22Mn16N welding. In this work, the bonding technology of plastic deformation was introduced to solve the poor performance problems of 1Cr22Mn16N HNASS welded joints. The experiments were conducted through the Glebble 3500 thermomechanical simulation in the temperature range of 1050-1250 degrees C and a strain range of 10%-40% with a strain rate of 0.1 s(-1). The microstructure evolution of the bonding interface was characterized and investigated using OM, EBSD, and TEM; the interface healing mechanism was discussed, and the bonding strength of the joint was evaluated by tensile test. The results show that the bonding level of the interface substantially increases with the increase in deformation and temperature. When the deformation temperature reached 1200 degrees C and the strain reached 40%, the mechanical properties of the bonding interface reached up to the same level as the matrix. During the process of deformation, discontinuous dynamic recrystallization (DDRX) occurred at the interface because of thermomechanical coupling; meanwhile, dislocations accumulated and entanglement occurred under the action of stress, forming a large number of subgrain boundaries within the original grain boundaries near the interface, which, lead to continuous dynamic recrystallization (CDRX). The healing of the interface was achieved by the synergistic effect of CDRX and DDRX.
关键词	high-nitrogen austenitic stainless steel plastic deformation bonding dynamic recrystallization
DOI	10.11900/0412.1961.2023.00015
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001260210800006
出版者	SCIENCE PRESS
引用统计	被引频次：1[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/321006/187977
专题	中国科学院金属研究所
通讯作者	Sun Mingyue; Qiao Yanxin
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 3.Jiangsu Univ Sci & Technol, Sch Mat Sci & Engn, Zhenjiang 212003, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yang Ruize,Zhai Ruzong,Ren Shaofei,et al. Evolution and Healing Mechanism of 1Cr22Mn16N High Nitrogen Austenitic Stainless Steel Interface Microstructure During Plastic Deformation Bonding[J]. ACTA METALLURGICA SINICA,2024,60(7):915-925.
APA	Yang Ruize.,Zhai Ruzong.,Ren Shaofei.,Sun Mingyue.,Xu Bin.,...&Yang Lanlan.(2024).Evolution and Healing Mechanism of 1Cr22Mn16N High Nitrogen Austenitic Stainless Steel Interface Microstructure During Plastic Deformation Bonding.ACTA METALLURGICA SINICA,60(7),915-925.
MLA	Yang Ruize,et al."Evolution and Healing Mechanism of 1Cr22Mn16N High Nitrogen Austenitic Stainless Steel Interface Microstructure During Plastic Deformation Bonding".ACTA METALLURGICA SINICA 60.7(2024):915-925.