介绍了一种由俄罗斯哈尔科夫工程物理研究所等单位研制成的活塞环用钼氮化物涂料。该涂料不仅能提高活塞环的工作稳定性 ,而且还能减少气缸的磨耗量。此外 ,涂有该涂料的试样在摩擦磨损试验机的台架上进行了试验 ,并给出了试验结果。 A molybdenum nitride coating for piston rings developed by Russia’s Kharkov Institute of Engineering Physics and other units was introduced. The coating not only improves the working stability of the piston rings, but also reduces cylinder wear. In addition, the sample coated with the coating was tested on the bench of the friction and wear tester and the test results were given.