低铬白口铸铁腐蚀磨损特性研究  

Study on the Corrosion-abrasion Characteristic of Low Chromium White Cast Iron

作　　者：江燕云[1] 江海燕[1] 黄明富[1] 吕振林[2] 

机构地区：[1]德兴铜矿机械制造有限公司,江西德兴334224 [2]西安理工大学材料学院,陕西西安710048

出　　处：《热加工工艺》2003年第4期17-18,共2页Hot Working Technology

摘　　要：采用三体腐蚀磨损试验方法研究了硅对低铬白口铸铁腐蚀磨损耐磨性的影响。结果表明,增加低铬白口铸铁中的含硅量,可以提高其硬度及腐蚀磨损耐磨性,但含硅量超过2.0%以后,随着碳化物数量的增多及出现初生碳化物和初生石墨,使腐蚀磨损耐磨性有所降低。分析表明,低铬白口铸铁的磨损机理以显微切削为主,腐蚀为辅。The effect of silicon content on the corrosionabrasion wear resistance of low chromium white cast iron was studied by the three body corosionabrasion test mathod.The results showed that the hardenss and corrosionabrasion wear resistance of low chromium white cast iron would be increased with the increase of silicon content.However,when the silicon content was exceeded 2.0%,the corrosionabrasion wear resistance would be decreased because of the appearance of hypereutectic carbide and graphite in its microstructures.The corosionabrasion mechanism of low chromium white cast iron was dominated by microcut wear,and associated with corrosion.

关 键 词：低铬白口铸铁 腐蚀磨损 含硅量 

分 类 号：TG143.1[一般工业技术—材料科学与工程]