Microstructural evolution and mechanical properties of friction stir welded joint of Fe-Cr-Mn-Mo-N austenite stainless steel

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	Microstructural evolution and mechanical properties of friction stir welded joint of Fe-Cr-Mn-Mo-N austenite stainless steel
	D. Wang; D. R. Ni; B. L. Xiao; Z. Y. Ma; W. Wang; K. Yang
	2014
发表期刊	Materials & Design
ISSN	0261-3069
卷号	64 页码:355-359
摘要	2 mm thick Fe-18.4Cr-15.8Mn-2.1Mo-0.66N high nitrogen austenite stainless steel plate was successfully joined by friction stir welding (FSW) at 800 rpm and 100 mm/min. FSW did not result in the loss of nitrogen in the nugget zone. The arc-shaped band structure, consisting of a small amount of discontinuous ferrite aligning in the bands and fine austenite grains, was a prominent microstructure feature in the nugget zone. The discontinuous ferrite resulted from newly formed ferrite during welding and the remained ferrite, whereas the fine austenite grains were formed due to dynamic recrystallization of the initial austenite during FSW. The fine dynamically recrystallized grains in the nugget zone significantly increased the hardness compared to that of the base material. The strength of the joint was similar to that of the base material, with the joint failing in the base material zone. (C) 2014 Elsevier Ltd. All rights reserved.
部门归属	[wang, d. ; ni, d. r. ; xiao, b. l. ; ma, z. y. ; wang, w. ; yang, k.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; ma, zy (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; zyma@imr.ac.cn
关键词	Friction Stir Welding Stainless Steels High Nitrogen Steels Microstructure Mechanical Properties Hot Deformation Weldability Behavior Speed Alloy Laser
URL	查看原文
语种	英语
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/73401
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. Wang,D. R. Ni,B. L. Xiao,et al. Microstructural evolution and mechanical properties of friction stir welded joint of Fe-Cr-Mn-Mo-N austenite stainless steel[J]. Materials & Design,2014,64:355-359.
APA	D. Wang,D. R. Ni,B. L. Xiao,Z. Y. Ma,W. Wang,&K. Yang.(2014).Microstructural evolution and mechanical properties of friction stir welded joint of Fe-Cr-Mn-Mo-N austenite stainless steel.Materials & Design,64,355-359.
MLA	D. Wang,et al."Microstructural evolution and mechanical properties of friction stir welded joint of Fe-Cr-Mn-Mo-N austenite stainless steel".Materials & Design 64(2014):355-359.