Cu-Cr合金高温氧化行为分析  

Study of High Temperature Oxidation of Cu-Cr Alloys

作　　者：刘彬[1] 刘建华[1] 卢军从[1] 

机构地区：[1]燕山大学材料学院

出　　处：《上海有色金属》2003年第2期68-70,共3页Shanghai Nonferrous Metals

摘　　要：该文用热分析天平,结合金相、X射线衍射(XRD)、扫描电镜(SEM)和能谱(EXD)研究了Cu Cr合金在不同温度下的氧化行为。结果表明,Cu Cr合金在700℃～900℃氧化符合抛物线规律,其最外层氧化膜为CuO,内层为Cu2O和Cr2O3,铬有助于提高合金的抗氧化能力。The high temperature oxidation behavior of CuCr alloys at high temperatures was studied by means of thermobalance,metallography,XRD,SEM,and EXD.The results show that the oxidation of CuCr alloy at 700℃～900°C follows the parabolic rate law;complex scales are formed of CuO in the outmost layer,and of a mixture of Cu2O and Cr2O3 in the inner layer,while Cr increases the oxidation resistance of CuCr alloys.

关 键 词：CU-CR合金 高温氧化 热分析 氧化膜 XRD SEM EXD 铜合金 

分 类 号：TG172[金属学及工艺—金属表面处理]