FORMATION OF A GRADIENT NANOSTRUCTURED SURFACE LAYER ON A MARTENSITIC STAINLESS STEEL AND ITS EFFECTS ON THE ELECTROCHEMICAL CORROSION BEHAVIOR

IMR OpenIR

	FORMATION OF A GRADIENT NANOSTRUCTURED SURFACE LAYER ON A MARTENSITIC STAINLESS STEEL AND ITS EFFECTS ON THE ELECTROCHEMICAL CORROSION BEHAVIOR
	Huang Haiwei 1; Wang Zhenbo 1; Liu Li 2; Yong Xingping 3; Lu Ke 1,4
通讯作者	Wang Zhenbo(zbwang@imr.ac.cn)
	2015-05-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	51 期号:5 页码:513-518
摘要	A gradient nanostructured (GNS) surface layer was fabricated on a Z5CND16-4 martensitic stainless steel by means of surface mechanical rolling treatment (SMRT). The microstructure in the GNS surface layer was characterized by using SEM and TEM. The results showed that the mean grain size increases with depth, from about 25 nm at the topmost surface layer to the initial value in the matrix. The total thickness of the grain-refined layer is about 150 mu m. The electrochemical corrosion property of the SMRT sample was compared with that of the as-received sample in a 3.5%NaCl aqueous solution. It is shown that the pitting corrosion potential increases from about 0.179 V in the as-received sample to about 0.313 V in the SMRT sample, and the self-corrosion potential also increases evidently. The formation of nanostructures, the increased structural homogeneity, and the introduction of compressive residual stresses in the GNS surface layer, as well as the decreased surface roughness, were discussed to promote the pitting corrosion resistance of the SMRT sample.
关键词	nanostructured material gradient nanostructure surface mechanical rolling treatment martensitic stainless steel pitting corrosion
资助者	National Basic Research Program of China
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[2012CB932201]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000355388000001
出版者	SCIENCE PRESS
引用统计	被引频次：8[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/321006/81159
专题	中国科学院金属研究所
通讯作者	Wang Zhenbo
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Shenyang Blower Works Grp Co Ltd, Shenyang 110869, Peoples R China 4.Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Nanjing 210094, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Huang Haiwei,Wang Zhenbo,Liu Li,et al. FORMATION OF A GRADIENT NANOSTRUCTURED SURFACE LAYER ON A MARTENSITIC STAINLESS STEEL AND ITS EFFECTS ON THE ELECTROCHEMICAL CORROSION BEHAVIOR[J]. ACTA METALLURGICA SINICA,2015,51(5):513-518.
APA	Huang Haiwei,Wang Zhenbo,Liu Li,Yong Xingping,&Lu Ke.(2015).FORMATION OF A GRADIENT NANOSTRUCTURED SURFACE LAYER ON A MARTENSITIC STAINLESS STEEL AND ITS EFFECTS ON THE ELECTROCHEMICAL CORROSION BEHAVIOR.ACTA METALLURGICA SINICA,51(5),513-518.
MLA	Huang Haiwei,et al."FORMATION OF A GRADIENT NANOSTRUCTURED SURFACE LAYER ON A MARTENSITIC STAINLESS STEEL AND ITS EFFECTS ON THE ELECTROCHEMICAL CORROSION BEHAVIOR".ACTA METALLURGICA SINICA 51.5(2015):513-518.