赵建华,赵国华,李涛,刘鑫,李佳丽,韩二静

• 1:重庆大学材料科学与工程学院
• 2:国家镁合金材料工程技术研究中心

摘要(Abstract)：

通过热浸镀铝/微弧氧化复合工艺对H13模具钢进行表面改性以提高模具表面质量。在热浸镀铝过程中,将H13钢基体浸入710℃纯铝液6 min,得到了以Fe2Al5为主中间合金层,使得镀层与基体紧密结合。经过微弧氧化处理后,镀铝试样表面铝层转化为氧化铝陶瓷,主要由α-Al2O3和γ-Al2O3相组成。用带有能谱分析装置(EDX)的扫描电镜(SEM)、X射线衍射(XRD)分析了膜层的形貌、成分和相组成。微弧氧化陶瓷层主要由Al、O、Si元素组成,其中O、Si主要来源于硅酸盐电解液。

关键词(KeyWords)： 热浸镀铝;微弧氧化;压铸模具;表面改性

Abstract:

Keywords:

基金项目(Foundation): 重庆市科技攻关计划项目(2008AA4029)

作者(Author): 赵建华,赵国华,李涛,刘鑫,李佳丽,韩二静

DOI: 10.13289/j.issn.1009-6264.2012.03.026

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