Cr Release from Stainless Steels

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Abstract A Cr release from stainless steels in different simulant fluids according to different test conditions is carried out with emphasis on ferritic stainless steels. Effects of Cr content and surface roughness on Cr release are discussed specially with a relation to corrosion resistant and passive film formation. Some primary results are attained: (1) higher Cr content means better corrosion resistance including higher potential and lower corrosion rate and less amount of Cr release from base metal; (2) decreasing surface roughness is in favor of the formation of passive film which can retrain Cr release from base metal effectively; (3) Cr content and surface roughness have synthetical effects on Cr release with a narrow innoxious field referring to surface roughness with decreasing Cr content in stainless steels.

Key words�� Keywords: Cr release, stainless steel, Cr content, surface roughness.

Received: 24 July 2012 Published: 16 January 2014

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	Articles by authors
	YU Ru-Meng
	LUO Su-Zhen
	JIANG Lai-Zhu

Cite this article:

YU Ru-Meng,LUO Su-Zhen,JIANG Lai-Zhu. Cr Release from Stainless Steels[J]. Chinese Journal of Iron and Steel, 2014, 21(1): 131-134.

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http://gt.chinamet.cn/Jweb_gtyjxb_en/EN/ OR http://gt.chinamet.cn/Jweb_gtyjxb_en/EN/Y2014/V21/I1/131