张明义,岳广全,李志刚,张嘉振,刘富,陈铮

• 1:中国商用飞机有限责任公司北京民用飞机技术研究中心
• 2:西北工业大学凝固技术国家重点实验室

摘要(Abstract)：

基于微观相场模型研究了应力时效对Ni75Al15V10合金中L12-Ni3Al相间反相畴界成分的影响规律。研究表明,L12相间存在3种反相畴界,其中(200)//(200)·[001]和(100)//(200)·[001]与已有文献中实验发现的L12-Ni3Fe相间反相畴界结构一致;在3种反相畴界处,Ni、Al贫化,V偏聚,应力时效使得L12相间3种反相畴界处Ni和Al的浓度升高,V浓度降低;应力时效对(200)//(200)·[001]和(100)//(200)·[001]成分的影响较大,对(200)//(200)成分的影响则相对较小;相同反相畴界处,应力时效对不同合金元素浓度的改变也不同。

关键词(KeyWords)： 微观相场;反相畴界;应力时效;Ni75AlxV25-x合金;界面成分

Abstract:

Keywords:

基金项目(Foundation): 中国博士后科学基金(2013M532082);; 上海市博士后科研资助计划重点项目(13R21421800)

作者(Author): 张明义,岳广全,李志刚,张嘉振,刘富,陈铮

DOI: 10.13289/j.issn.1009-6264.2014.07.040

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