Sliding wear properties for Ni–Al based intermetallic compound layer coated on ductile cast iron by combustion synthesis
Sliding wear properties for Ni–Al based intermetallic compound layer coated on ductile cast iron by combustion synthesis
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DOI：
10.1016/j.wear.2004.12.033
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发表时间：
2006
期刊：
影响因子：
5
通讯作者：
Han-Young Lee;Jung-Kyun Roe;A. Ikenaga
中科院分区：
文献类型：
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作者：
Han-Young Lee;Jung-Kyun Roe;A. Ikenaga
金属间化合物材料是一种极具潜力的新型功能材料。尽管这些材料具有巨大的潜力，但在工业领域的应用却很少。其中一个主要原因可能是因为材料的脆性。事实上，最近人们知道，金属间化合物可以通过燃烧合成的方法被涂覆在金属表面。本研究采用燃烧合成法，在不同反应温度下，在球墨铸铁表面制备了Ni-Al基金属间化合物。通过滑动磨损试验验证了其滑动磨损性能，并考察了反应温度对滑动磨损性能的影响。结果表明，随着反应温度的升高，涂层的组织结构发生了显著变化。但它们的磨损性能仅在低滑动速度范围内受反应温度的影响。结果表明，无论反应温度如何，Ni-Al基金属间化合物涂层在高滑动速度范围内的耐磨性都是有效的。从涂层磨损表面可以观察到点蚀损伤。
Intermetallic compound materials have great potentials as new functional material. Despite their great potentials, these materials are rarely applied in the industrial field. One of the main reasons may be because of the brittleness of the material. Indeed, it is recently known that the intermetallic compounds can be coated on the metal surface by combustion synthesis. In this study, Ni–Al based intermetallic compounds are coated on a ductile cast iron by the combustion synthesis at several reaction temperatures. Sliding wear tests are conducted to verify the sliding wear properties and investigate the effects of the reaction temperature. As a result, it is found that microstructure of the coating layer varies significantly with the reaction temperature. However, their wear properties are influenced just in the range of low sliding speed by the reaction temperature. It is clear that the wear resistance of Ni–Al based intermetallic compound coating layers are effective in the range of high sliding speed, regardless of the reaction temperature. Pitting damages are observed from the worn surfaces of coating layer.