1Cr18Ni9Ti不锈钢微晶的耐局部腐蚀性能研究

金属学报, 1988, 24(5): 441-443.

1Cr18Ni9Ti不锈钢微晶的耐局部腐蚀性能研究

中国科学院金属腐蚀与防护研究所

关键词：微晶 , localized corrosion , magnetron sputtering

LOCALIZED CORROSION OF MICROCRYSTALS OF 1Cr18Ni9Ti STAINLESS STEEL

LIU Dacheng , CAO Chunan , WANG Fuhui , LOU Hanyi , ZHANG Lixin Institute of Corrosion and Protection of Metals

利用磁控离子溅射技术得到bcc结构的1Cr18Ni9Ti不锈钢微晶溅射层,在不同溅射条件下可以得到(110)和(211)两种择优取向的微晶。用电化学方法研究表明,这两种微晶的耐局部腐蚀性能都较正常晶粒有明显提高,且(110)择优取向微晶的耐局部腐蚀性能较(211)择优取向微晶的耐局部腐蚀性能更好。

The resistance against localized corrosion of 1Cr18Ni9Ti microcrystals with nor-mal grain size and bcc structure obtained by magnetron sputtering has been compared. Two kindsof microcrystals with (110) and (211) textures respectively were obtained under different sputter-ing conditions. Both microcrystals were found to have better resistance against localized corrosionthan the crystal with normal grain. The microcrystal with (110) perferred orientation has largerresistance to localized carrosion than that with (211)preferred orientation

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