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通过粉末冶金热压法成功制备出了具有不同WS_2含量的银基复合材料,并对其进行了对偶材料为银盘,湿大气、干氮气和真空条件下,载荷为5 N的球盘式摩擦磨损试验。通过X射线衍射(XRD)、扫描电镜(SEM)、能量色谱(EDS)和X射线光电子能谱对材料的组成,磨屑及磨损表面分别进行表面形貌表征、表面元素分析和元素价键分析。研究表明,摩擦氛围对此类银基复合材料的摩擦学行为具有较大影响,在湿大气中呈现出较高的摩擦系数,而在干氮气中摩擦系数最小。进一步研究表明,摩擦环境对材料摩擦过程中润滑膜的形成具有重要影响,主要是膜的厚度与组成。此外,不同的摩擦环境下,磨粒磨损和分层是此类银基复合材料的主要磨损机制。
Silver-based composites with different WS 2 contents were successfully prepared by powder metallurgy hot-pressing. Spherical disc friction with a load of 5 N was obtained when the dual materials were silver plate, wet air, dry nitrogen and vacuum. Wear test. The surface morphology, surface elemental analysis and elemental valence bond analysis of the material composition, wear debris and worn surface were carried out by XRD, SEM, EDS and XPS. . The results show that the frictional atmosphere has a great influence on the tribological behavior of such silver-based composites, showing a higher friction coefficient in wet atmosphere and the least in dry nitrogen. Further studies show that the frictional environment has an important influence on the formation of the lubricating film during the friction of the material, mainly the thickness and composition of the film. In addition, abrasive wear and delamination are the main wear mechanisms of such silver matrix composites under different frictional environments.