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首页> 外文会议>International Conference on Surface Modification Technologies >Microstructure and Wear Properties of TiC-MoS{sub}2 Composite Coatings Prepared by Gas Tungsten Arc Welding Process
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Microstructure and Wear Properties of TiC-MoS{sub}2 Composite Coatings Prepared by Gas Tungsten Arc Welding Process

机译：通过气体钨弧焊工艺制备的TIC-MOS {SUB} 2复合涂层的微观结构和磨损性能

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摘要

Using the gas tungsten arc welding (GTAW) process, different compositions of metal matrix composites (MMC) have been deposited on plain steel (St52), with TiC, MoS{sub}2 and iron powders. Microstructures of the MMCs obtained were studied and wear tests were carried out at room temperature, in order to assess dry lubrication properties of the deposited layers. It has been shown that there exists an optimum content of MoS{sub}2 for the composite coatings investigated, enhanced with 25-30% TiC. This content corresponds to an addition of MoS{sub}2 between 5 and 10 wt%. In this composition range and for the tribological conditions examined (alumina counterbody, 4.9-19.6N load and 30-90cm/s sliding speed) both friction coefficient and wear rate tend to a minimum.
机译：使用气体钨弧焊（GTAW）工艺，用TIC，MOS {SUB} 2和铁粉沉积了不同的金属基质复合材料（MMC）的不同组成。研究的MMCS的微观结构并在室温下进行磨损试验，以评估沉积层的干燥润滑性质。已经表明，所研究的复合涂层的MOS {Sub} 2存在最佳含量，增强25-30％TiC。该内容对应于在5到10wt％之间的MOS {sub} 2的添加。在该组合物范围和用于摩擦学条件的（氧化铝对体，4.9-19.6N负载和30-90厘米/升滑动速度）均达到最小的摩擦系数和磨损。

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