杜华云,安艳丽,卫英慧,李栩,林万明,侯利锋

• 1:太原理工大学材料科学与工程学院
• 2:山西医科大学基础医学院

摘要(Abstract)：

用高能喷丸法对纯铁表面进行机械研磨时将镍粉引入表面,并通过随后热处理实现了表面铁镍合金化。采用OM、XRD和SEM研究其显微组织及分布形貌。结果表明,机械研磨后,镍粉均匀镶嵌在纯铁基体上并形成一层铁镍混合层,经过450℃退火后出现约100μm的FeNi合金层,且其成分沿深度呈梯度分布。载荷为15~55 N时,表面合金化后摩擦系数和磨损量低于仅仅纳米化后的样品。表面合金化处理能进一步减弱纯铁的疲劳磨损效应,提高材料的摩擦磨损性能。

关键词(KeyWords)： 纯铁;铁镍合金化;机械研磨;退火;摩擦磨损

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51001079,21201129,51374151);; 山西省自然科学基金(2011011020-2,2010021023-1);; 高等学校博士点专项科研基金(20091402110010);; 中国博士后科学基金(20100471586);; 山西省高等学校青年学术带头人支持计划;; 太原市创新创业人才专项(01922034)

作者(Author): 杜华云,安艳丽,卫英慧,李栩,林万明,侯利锋

DOI: 10.13289/j.issn.1009-6264.2013.11.030

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