中国铸造2005，Vol.2Issue(3)：159-164,6.
Corrosive-wear resistance of stainless steels for the impeller of slurry pump used in zinc hydrometallurgy process
Corrosive-wear resistance of stainless steels for the impeller of slurry pump used in zinc hydrometallurgy process
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作者信息
- 1. The State Key Laboratory of Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, P. R. China;The State Key Laboratory of Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, P. R. China;The State Key Laboratory of Die and Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, P. R. China
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摘要
Abstract
This paper presents corrosive-wear (C-W) behaviors of three kinds of steels under the simulating condition of traditional zinc hydrometallurgy process by using a self-made rotating disk apparatus. Result shows that pure wear loss rate is significantly larger than pure corrosion loss rate. Under this C-W condition, the ranking of C-W resistance is S2 ＞ S3 ＞ S1 (S1: austenite stainless steel; S2: CD-4MCu duplex stainless steel; S3:17-4PH stainless steel). S2 has excellent C-W resistance due to strong surface deformation strengthening effect of high-density dislocations of the γphase. S3 also has excellent C-W resistance owing to high hardness and strength. However, S1 does not show good C-W resistance under strong erosion of liquid-solid slurry because of its single-phase austenitic structure and very low hardness. As a result, duplex stainless steels as well as 17-4 PH stainless steel can be used as impeller candidate materials in the zinc hydrometallurgy process due to their excellent C-W resistance and lower cost.关键词
corrosive-wear/austenitic stainless steel/CD-4MCu duplex stainless steel/17-4 PH stainless steel/impellerKey words
corrosive-wear/austenitic stainless steel/CD-4MCu duplex stainless steel/17-4 PH stainless steel/impeller分类
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..Corrosive-wear resistance of stainless steels for the impeller of slurry pump used in zinc hydrometallurgy process[J].中国铸造,2005,2(3):159-164,6.
