Cu^(2+)对低铬白口铸铁腐蚀磨损的影响  

Effect of Cu^(2+) Ion on Corrosive-Wear Behavior of Low Chromium White Cast Iron

作　　者：黄汝清[1] 麻日来[1] 吕振林[2] 张岩[2] 

机构地区：[1]江西铜业集团公司(德兴)铸造公司,江西德兴334224 [2]西安理工大学材料学院,陕西西安710048

出　　处：《铸造》2008年第7期701-703,共3页Foundry

摘　　要：采用三体腐蚀磨损试验机研究了低铬白口铸铁在含Cu2+离子的浆料介质中的腐蚀磨损特性,并对腐蚀磨损机理进行了分析。结果表明,随着浆料介质中Cu2+离子浓度的增加,低铬白口铸铁腐蚀磨损耐磨性降低,当Cu2+浓度超过0.012mol/L后,耐磨性有所增加。低铬白口铸铁在Cu2+离子的浆料介质中的磨损机制以显微切削、犁沟和腐蚀剥落为主,但在不含Cu2+离子的浆料介质中,则以显微切削和犁沟为主,兼有少量剥落。因此,浆料介质中的Cu2+离子参与了低铬白口铸铁的腐蚀磨损过程。The corrosive-wear behavior of low chromium white cast iron was studied by using three-body corrosive-wear tester in slurries with Cu^2＋, and the corrosive-wear mechanism was analyzed. The results showed that the corrosive-wear resistance of low chromium white cast iron was decreased with the increasing of Cu^2＋ concentration in slurries, and increased slightly when the concentration of Cu^2＋ in slurries was more than 0.012 mol/L. The corrosive-wear mechanism of low chromium white cast iron in slurries with Cu^2＋ was dominated by micro-cutting, groove and corrosion spalling, but in slurries without Cu^2＋ it was dominated by micro-cutting and groove, with small corrosion spalling. Therefore, the Cu^2＋ in slurries took part in the corrosive-wear of low chromium white cast iron.

关 键 词：低铬白口铸铁 腐蚀磨损 Cu^2+离子 

分 类 号：TG115.58[金属学及工艺—物理冶金]