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首页> 外文期刊>Journal of Materials Engineering and Performance >Laser Additive Manufacturing of (Ti-6Al-4V)/10 wt.% Ag Composite Using Spherical Powders to Reduce Wear and Friction
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Laser Additive Manufacturing of (Ti-6Al-4V)/10 wt.% Ag Composite Using Spherical Powders to Reduce Wear and Friction

机译：激光添加剂制造（Ti-6Al-4V）/ 10重量％。使用球形粉末的％Ag复合材料以减少磨损和摩擦

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摘要

In order to extend the service lifetime of Ti-6Al-4V-based components, friction and wear behaviors of Ti-6Al-4V alloys needed to be further improved. Laser additive manufacturing with a moving laser beam was used to prepare (Ti-6Al-4V)/10 wt.% Ag samples, on a three-dimensional RC-SLM400 printer with laser powers of 2-10kW. (Ti-6Al-4V)/10 wt.% Ag samples were successfully printed using spherical powders prepared by gas atomization process (SPGAP) and combustion reaction (SP-CR). The tribological properties of the as-prepared samples sliding against Si3N4 balls were examined using a ball-on-disk tribometer. The results showed that the tribological behavior of (Ti-6Al-4V)/10 wt.% Ag printed by SP-CR was better than that of the sample printed by SPGAP. The low friction and reduced wear were mainly attributed to the formation of the lubrication layer containing large amounts of silver, which can exhibit an excellent deformation and plastic ductility. It effectively reduced the friction resistance and material loss and provided the good lubrication for 0-80min, resulting in low friction and reduced wear of the samples prepared by SP-CR.
机译：为了延长Ti-6Al-4V的组件的使用寿命，需要进一步改善Ti-6Al-4V合金的摩擦和磨损行为。使用移动激光束的激光添加剂制造用于制备（Ti-6Al-4V）/ 10wt。％Ag样品，在三维RC-SLM400打印机上，激光功率为2-10kW。 （TI-6AL-4V）/ 10wt。使用通过气体雾化过程（SPGAP）和燃烧反应（SP-CR）制备的球形粉末成功打印％Ag样品。使用圆盘摩擦计检测抗Si3N4球的制备样品的摩擦学性质。结果表明，由SP-CR印刷的（Ti-6Al-4V）/ 10重量％的摩擦学行为优于SPGAP印刷的样品。低摩擦和降低的磨损主要归因于含有大量银的润滑层的形成，其可以表现出优异的变形和塑料延性。它有效地降低了摩擦阻力和材料损失，并提供了0-80min的良好润滑，导致SP-Cr制备的样品的低摩擦力和减少的磨损。

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