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首页> 外文期刊>Journal of Laser Applications >Wear behavior of laser clad surfaces of Cr_3C_2, WC and Mo on austenitic AISI 304L steel
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Wear behavior of laser clad surfaces of Cr_3C_2, WC and Mo on austenitic AISI 304L steel

机译：Cr_3C_2，WC和Mo激光熔覆表面在奥氏体AISI 304L钢上的磨损行为

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摘要

Wear resistance of austenitic steels is low and needs to be improved for applications in abrasive and erosive environments. In the present work, the powders of chromium carbide (Cr_3C_2), tungsten carbide (WC) and molybdenum (Mo) were laser cladded on AISI 304L steel. The laser processing parameters have been optimized to fabricate sound metallurgical clad surfaces with minimum dilution for all three powders. The fabricated laser clad samples have been subjected to abrasion and erosion wear tests. It is observed that the abrasion resistance is improved in the range of 2-8 times as compared to that of the substrate for the cladding with these three powders. Erosion resistance has also shown an improvement of the order of 1.5-2 times for cladding with Cr_3C_2 and WC powders, whereas it deteriorated for Mo powder cladding. Surface topography of worn surfaces has been studied to understand the wear mechanisms of the clad surfaces.
机译：奥氏体钢的耐磨性很低，需要在磨蚀性和腐蚀性环境中进行改进。在目前的工作中，将碳化铬（Cr_3C_2），碳化钨（WC）和钼（Mo）的粉末激光熔覆在AISI 304L钢上。激光加工参数已经过优化，可以制造出良好的冶金包覆表面，并且对所有三种粉末的稀释度均最低。所制作的激光熔覆样品已经过磨损和腐蚀磨损测试。观察到，与用这三种粉末包层的基材相比，耐磨性提高了2-8倍。 Cr_3C_2和WC粉末熔覆层的耐蚀性也提高了1.5-2倍，而Mo粉末熔覆层的耐蚀性却下降了。已经研究了磨损表面的表面形貌，以了解包层表面的磨损机理。

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