变质处理提高钨渣低铬耐磨铸铁冲击韧性  

Improving the Structure and the Properties of Tungsten Slag Low Chromium Wearproof Cast Iron by Modification

作　　者：朱圣瑜[1] 蔡岳洪[1] 

机构地区：[1]湖南大学

出　　处：《中国机械工程》1996年第1期98-100,共3页China Mechanical Engineering

摘　　要：研究变质处理对钨渣低铬（Ｃｒ≤２％）耐磨铸铁显微组织、力学性能及抗磨性的影响。结果表明，用含Ｖ、Ｘｔ和Ｂ的变质剂处理钨渣低Ｃｒ耐磨铸铁，可使其组织中的碳化物由连续网状粗大的板块状，转变为孤立细小的块状；冲击韧性提高１８０％；抗磨性提高８５％左右。In this paper, effects of modification on the microstructure, mechanical properties and abrasive resistance of W slag low Cr wearproof cast iron are investigated. The results obtained show that the morphology of carbide in the W slag low Cr white cast iron treated with the ino-culans containing V,Re and B is changed from continuous network to isolated, fine irregular blocks and at the same time,the impact toughness was increaed by 120%,and abrasive resistance by 40%.

关 键 词：耐磨铸铁 冲击韧性 铸铁 

分 类 号：TG143.9[一般工业技术—材料科学与工程]