【摘要】 应用扫描电镜背电子散射研究了加热温度对铜时效硬化钢HSLA-100表面氧化层结构和成分的影响。研究发现,随加热温度升高,氧化层厚度增加且结构发生变化,氧化层可根据其组成分为3个部分:氧化铁层、富Cu相层和过渡层;氧化层中的Cu以富Cu-Ni相的形式存在,加热温度对富Cu-Ni相的成分具有明显影;随加热温度的升高,过渡层的结构和相组成发生变化。更多还原

【Abstract】 The effects of temperature on the microstructure and composition of surface oxidation layer of copper age-hardening steel were investigated by SEM-BSE.The results show that the thickness of oxidation layer increases and the structure changes as temperature rising.The whole oxidation layer can be divided into three parts: iron oxides layer,Cu-rich phase layer and transition layer.The Cu in the oxidation layer is in the form of Cu Ni-rich phase.As the temperature rising,the microstructure and composition of the transition layer change.更多还原