本文介绍了内燃机活塞上PVD(物理气相沉积)涂层的发展,目的是为了更好地控制发动机的主要部件,如活塞和气缸等的摩擦、磨损、氧化及腐蚀,提高能效,延长寿命,改善功率输出。研究目的是为铝制活塞寻找最佳的衬底涂层化合物。PVD的氮化铬电弧沉积涂层已被证实在这方面能提供极优越的性能,正如在划痕测试中所测得的,在摩擦力、磨损特性和粘着力方面都有改善。涂镀工艺不会影响到LM- 13活塞合金的硬度和微观结构。 This article describes the development of PVD (Physical Vapor Deposition) coatings on internal combustion engine pistons for the purpose of better controlling the friction, wear, oxidation and corrosion of the main engine components, such as pistons and cylinders, to improve energy efficiency, to extend the life, to improve Power output. The purpose of the study was to find the best substrate coating compounds for aluminum pistons. PVD chrome nitride arc deposition coatings have proven to provide extremely superior performance in this regard, as measured in scratch tests, with improvements in friction, wear characteristics and adhesion. Coating process will not affect the LM- 13 piston alloy hardness and microstructure.