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.
出处
《铸造》
CAS
CSCD
北大核心
2008年第7期701-703,共3页
Foundry
