王建强,王胜民,刘华伟,赵晓军,黄国雄

• 1:昆明理工大学材料科学与工程学院

摘要(Abstract)：

采用机械镀工艺在钢铁基体表面制备一定厚度的纯锌镀层,在不同温度下对所制备机械镀锌层进行热扩散处理。观察扩散层的外观质量和断面结构,分析扩散层的物相组成,采用PS-268A型电化学工作站分析了试样的电化学性能。结果表明:随着扩散温度的升高,镀层表面的氧化严重,扩散层中的合金相层不断增厚,机械镀锌层逐渐变薄直至消失;475℃时,渗锌层的主要组成相为FeZn_(6.67)、FeZn_(8.87)以及FeZn_(10.98),并含有少量ZnO_2;加热温度的升高对扩散层自腐蚀电位并没有显著影响,但扩散温度过高,试样表面可能会因出现氧化现象而变得粗糙,腐蚀电流密度会因此增大。

关键词(KeyWords)： 机械镀锌;热处理;扩散层;组织

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51561017)

作者(Author): 王建强,王胜民,刘华伟,赵晓军,黄国雄

DOI: 10.13289/j.issn.1009-6264.2017-0444

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