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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
Source PublicationMaterials & Design
ISSN0261-3069
Volume64Pages:355-359
Abstract2 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.
description.department[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
KeywordFriction Stir Welding Stainless Steels High Nitrogen Steels Microstructure Mechanical Properties Hot Deformation Weldability Behavior Speed Alloy Laser
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73401
Collection中国科学院金属研究所
Recommended Citation
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.
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