冷文秀,田文怀

• 1:北京科技大学材料科学与工程学院
• 2:中国石油大学(北京)数理系

摘要(Abstract)：

研究了不同成分的Fe-Cu合金在过饱和固溶体状态下其硬度随Cu含量的变化规律,分析了Cu元素在Fe中的固溶强化作用。研究了Fe-Cu合金的时效硬化现象以及Cu的析出过程,结果表明Fe-Cu合金硬度值增加近一倍,通过透射电镜观察到随时效时间的增加,析出相的尺寸逐渐增大,形状由球状转变为棒状。电子衍射分析得知,时效处理硬度达到最大值时对应的析出相具有B2型晶体结构,与基体之间保持平行位向关系。

关键词(KeyWords)： 析出;时效硬化;B2晶体结构;相变

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助课题(50671012)

作者(Author): 冷文秀,田文怀

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