M－B－A复相基体及M基体中铬铸铁湿态磨料磨损特性  

The Wet-Abrasive-Wear Characteristics of Martensite-Bainite-Austenite Duplex Matrix and Martensite Matrix Medium Cbromium Cast Iron

作　　者：李卫[1] 朴东学[1] 姜炳焕[1] 

机构地区：[1]广州有色金属研究院,机械工业部沈阳铸造研究所

出　　处：《机械工程材料》1994年第3期23-26,共4页Materials For Mechanical Engineering

摘　　要：着重对比探讨马氏体－贝氏体－奥氏体（Ｍ－Ｂ－Ａ）复相中铬铸铁和马氏体中铬铸铁的湿态磨料磨损特性。研究表明，冲击载荷、高应力湿态磨料磨损条件下（冲击功１．４７Ｊ，２．４５Ｊ），疲劳剥落是主要磨损机制，复相基体中铬铸铁的磨损速度低于马氏体中铬铸铁。而低应力湿态磨料磨损中显微切削是主要磨损机制，马氏体中铬铸铁的磨损失重低于复相基体中铬铸铁。The wet-abrasive-wear characteristics of M-B-A duplex matrix and M matrix medium chromium cast iron was investigated. The results showed that under the condition of impact and high stress wet -abrasive -wear (impact energy 1. 47J and 2. 4 5J ), fatigue spalling is the main wear mechanism and the wear rate of M-B-A matrix is lower than that of M matrix medium chromium cast iron. But under the condition of low stress wet-abrasive-wear,ndcro-cutting is main wear mechanism and wear rate of M matrix is lower than that of M-B-A matrix medium chrondum cast iron.

关 键 词：中铬铸铁 湿态磨料磨损 

分 类 号：TG143.9[一般工业技术—材料科学与工程]