熊毅,贺甜甜,郭志强,陈正阁,张凌峰,任凤章

• 1:河南科技大学材料科学与工程学院
• 2:河南省有色金属材料科学与加工技术重点实验室
• 3:中国人民解放军63883部队

摘要(Abstract)：

采用重度冷轧及退火工艺制备超细晶工业纯铝,利用透射电镜和显微硬度实验对比研究了室温轧制和深冷轧制(液氮)及退火工艺所得到的超细晶工业纯铝组织特性和硬度。结果表明:深冷轧制细化晶粒的能力高于室温轧制,前者等轴状超细晶粒尺寸约为0.5μm,后者则约为1μm;深冷轧制试样的硬度值均高于对应状态下的室温轧制试样,温度低于200℃退火时,硬度值变化平缓,显微组织处于回复阶段;高于200℃退火时,硬度值迅速下降后趋于定值,与原始退火态相当,显微组织处于再结晶阶段。

关键词(KeyWords)： 深冷轧制;超细晶工业纯铝;微观组织;显微硬度

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(50801021);; 河南科技大学人才科学研究基金资助项目(07003)

作者(Author): 熊毅,贺甜甜,郭志强,陈正阁,张凌峰,任凤章

DOI: 10.13289/j.issn.1009-6264.2011.09.009

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