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Influence of Material Characteristics on the Abrasive Wear Response of Some Hardfacing Alloys

机译:材料特性对某些堆焊合金磨料磨损响应的影响

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摘要

This study examines the abrasive wear behavior of two iron-base hardfacing materials with different combinations of carbon and chromium after deposition on a steel substrate. Effects of applied load and sliding distance on the wear behavior of the specimens were studied. Operating material removal mecha-nisms also were analyzed through the scanning electron microscopy (SEM) examination of typical wear surfaces, subsurface regions, and debris particles.The results suggest a significant improvement in the wear resistance of the hardfaced layers over that of the substrate. Further, the specimens overlaid with the material with low carbon and high chromium con-tents attained better wear resistance than the one consisting of more carbon but less chromium. The for-mer specimens also attained superior hardness.Smoother abrasion grooves on the wear surfaces and finer debris formation during the abrasion of the hardfaced samples were consistent with wear resistance superior to that of the substrate.
机译:这项研究检查了两种铁基表面堆焊材料在沉积在钢基底上后具有不同碳和铬组合的磨料磨损行为。研究了施加的载荷和滑动距离对试样磨损行为的影响。还通过扫描电子显微镜(SEM)检查了典型的磨损表面,亚表面区域和碎屑颗粒,分析了操作材料的去除机理,结果表明硬面层的耐磨性明显高于基材。此外,与低碳高铬的材料覆盖的样品相比,高碳低铬的材料具有更好的耐磨性。以前的样品也获得了优异的硬​​度。在耐磨面样品的磨损过程中,磨损表面上的平滑磨损槽和更细的碎屑形成与优于基材的耐磨性一致。

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