Localized corrosion resistance of 409 L and 430 ferritic stainless steels

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	Localized corrosion resistance of 409 L and 430 ferritic stainless steels
	Yang, Rui-Cheng 1,2; Bi, Hai-Juan 2; Niu, Shao-Rui 2; Jin, Sai-Te 2; Shen, Peng 2
刊名	Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing
	2011-04-01
卷号	33 期号:4 页码:428-433
关键词	Anodic polarization Carbides Corrosion Corrosion resistance Electrochemical corrosion Electrochemical properties Ferritic stainless steel Grain boundaries Hot rolled steel Hot rolling Intergranular corrosion Phase interfaces Stainless steel Steel corrosion Textures Breakdown potential Electrochemical measurements Equiaxial grains General corrosion Immersion tests Microstructure analysis Passive films Protection potential
ISSN号	1001053X
英文摘要	The pitting corrosion and intergranular corrosion resistance performances of 409 L and 430 hot-rolling plates were contrastively investigated by using electrochemical measurements and chemical immersion tests. The results show that the difference between breakdown potential and protection potential of 409 L stainless steel is little, and the restorability of the passive film is strong with small-scale shallow pits. The pitting corrosion resistance of 430 stainless steel is better than that of 409 L stainless steel because of a higher breakdown potential, but its banding microstructure has the apparent effect of a corrosion microcell, represented with a more serious general corrosion. The intergranular corrosion resistance of 409 L stainless steel performs worse than that of the 430 stainless steel because of the low content of Cr and the lack of stabilizing processes under the hot-rolled condition. Through microstructure analysis, 409 L stainless steel presents a classic intergranular corrosion appearance along equiaxial grain boundaries, while 430 stainless steel exhibits a delamination corrosion trace at the phase interface between carbides (M23C6) and the matrix.
语种	中文
出版者	University of Science and Technology Beijing
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/111293]
专题	兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.Key Laboratory of the Ministry of Education of China for Non-Ferrous Metal Alloys, Lanzhou University of Technology, Lanzhou 730050, China 2.State Key Laboratory of Gansu Advanced Non-Ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China;
推荐引用方式 GB/T 7714	Yang, Rui-Cheng,Bi, Hai-Juan,Niu, Shao-Rui,et al. Localized corrosion resistance of 409 L and 430 ferritic stainless steels[J]. Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing,2011,33(4):428-433.
APA	Yang, Rui-Cheng,Bi, Hai-Juan,Niu, Shao-Rui,Jin, Sai-Te,&Shen, Peng.(2011).Localized corrosion resistance of 409 L and 430 ferritic stainless steels.Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing,33(4),428-433.
MLA	Yang, Rui-Cheng,et al."Localized corrosion resistance of 409 L and 430 ferritic stainless steels".Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing 33.4(2011):428-433.