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Dry sliding wear behavior of TIG welding clad WC composite coatings

机译:TIG堆焊WC复合涂层的干滑磨损行为

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In this study, melted tungsten carbide powders on the surface of AISI 4340 steel was applied by using tungsten inert gas (TIG) method. It was observed that it has been solidified in different microstructures depending on the production parameters. As a result of microstructure examinations, in the surface modified layers an eutectic and dendrite solidification was observed together with WC, W2C phases. In the layer produced, the hardness values varied between 950 and 1200 HV. The minimum mass loss was observed in the sample, which was treated in 1.209 mm/s production rate, 0.5 g/s powder feed rate and 13.9 kJ/cm heat input. (c) 2005 Elsevier B.V All rights reserved.
机译:在这项研究中,采用钨极惰性气体(TIG)方法在AISI 4340钢表面上使用了熔融的碳化钨粉末。观察到,根据生产参数,它已在不同的微观结构中固化。显微组织检查的结果是,在表面改性层中观察到共晶和枝晶凝固以及WC,W2C相。在生产的层中,硬度值在950和1200 HV之间变化。在样品中观察到最小的质量损失,样品以1.209 mm / s的生产率,0.5 g / s的粉末进料速率和13.9 kJ / cm的热量输入进行处理。 (c)2005 Elsevier B.V保留所有权利。

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