Influence of carburising and heat treatment operation on selective corrosion of chromium cast steels

被引:0
作者
Kondracki, Marcin [1 ]
Studnicki, Andrzej [1 ]
Szajnar, Jan [1 ]
机构
[1] Silesian Tech Univ, Katedra Odlewnictwa, Gliwice, Poland
来源
OCHRONA PRZED KOROZJA | 2014年 / 57卷 / 05期
关键词
chromium cast steel; heat treatment; carburising; corrosion resistance; selective corrosion;
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The paper presents studies on corrosion resistance of chromium cast steels with additions of Ni and Mo after chemical and heat treatment operations. The chromium content varied from 6 to 18 weight %. Corrosion tests were performed according to modified methodology of ASTM test and results of presented in position [17]. The range of investigations included the corrosion studies of samples after heat treatment operations (hardening and tempering) and after carburising with consecutive hardening. Analyses have shown the influence of those operations on corrosion resistance of studied alloys. The carburising process caused the structural changes in surface layer of cast steel, increasing the operation properties. Obtained results were compared with observation of low-alloyed steel samples after heat treatment.
引用
收藏
页码:174 / 178
页数:5
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