Homogenization of microstructure and hardness of surface layer of SS400 steel welded joint

IMR OpenIR

	Homogenization of microstructure and hardness of surface layer of SS400 steel welded joint
	Li, D ; Chen, HN ; Liu, G ; Lu, K
通讯作者	Li, D()
	2001-09-18
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	37 期号:9 页码:980-984
摘要	The surface layer of the welded joint of SS400 steel was treated by high-energy shot peening (HESP) technique, and characterized by means of the XRD, TEM and SEM. The hardness variation along the depth of the treated sample was examined after treatment. Experimental results show that the coarse-grained microstructure of top-surface layer of welded joint can be refined into nano-scale after the HESP treatment, and these nanocrystalline grains are about 10 mn in diameter and possess nearly random crystallographic orientations. The same hardness can be found for the nanostructured surface layers of the base metal, HAZ and weld of SS400 steel respectively, which is much higher than that of the sample before the HESP treatment. Homogenization of microstructure and hardness of the surface layer of SS400 steel welded joint are achieved. The strengthening of the surface layer can be primarily attributed to the surface nano crystallization.
关键词	welded joint high-energy shot peening surface nano crystallization microstructure microhardness
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:000172767200018
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：3[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/321006/112648
专题	中国科学院金属研究所
通讯作者	Li, D
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, State Key Lab RSA, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Li, D,Chen, HN,Liu, G,et al. Homogenization of microstructure and hardness of surface layer of SS400 steel welded joint[J]. ACTA METALLURGICA SINICA,2001,37(9):980-984.
APA	Li, D,Chen, HN,Liu, G,&Lu, K.(2001).Homogenization of microstructure and hardness of surface layer of SS400 steel welded joint.ACTA METALLURGICA SINICA,37(9),980-984.
MLA	Li, D,et al."Homogenization of microstructure and hardness of surface layer of SS400 steel welded joint".ACTA METALLURGICA SINICA 37.9(2001):980-984.