王文强,毛卫民,杨平,叶丰

• 1:北京科技大学-新金属材料国家重点实验室
• 2:北京科技大学-材料科学与工程学院

摘要(Abstract)：

观察分析了Fe-6.5%Si合金冷轧前后及在不同再结晶退火过程中的组织、织构及有序结构的特点及其演变规律,用以分析织构形成机制及其影响因素。结果表明,间隙溶质原子偏聚于{110}面的概率大于{112}面,明显提高位错在{110}面滑移的临界分切应力;代位溶质原子有可能同步提高{110}和{112}面的临界分切应力,降低这两面的临界分切应力差;因此溶质原子都会导致{112}面更活跃的滑移和更强的{100}<110>冷轧织构。退火过程中{111}<112>取向晶粒易于长入{001}<110>和{112}<110>取向形变晶粒,使{111}<112>再结晶织构增强。冷变形会降低合金的有序化程度;D03有序化过程的二级相变特点使之在退火加热过程中先于再结晶出现,再结晶之前的回复会促进有序化过程。

关键词(KeyWords)： Fe-6.5%Si合金;织构;再结晶;有序结构

Abstract:

Keywords:

基金项目(Foundation): 新金属材料国家重点实验室自主资助课题(2010z-12);; 科技部高技术研究与发展(863)计划(2012AA03A505)

作者(Author): 王文强,毛卫民,杨平,叶丰

DOI: 10.13289/j.issn.1009-6264.2013.04.023

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