活塞环是内燃机的关键零件之一,由于它处在高温、高速和高压力的恶劣条件下工作,并承受磨料磨损、摩擦磨损、腐蚀磨损等多种磨损,所以要求活塞环材料应具有良好的耐磨性、耐蚀性、耐热性和弹力以及足够的机械性能。由于铸铁易获得活塞环所需的各种基本性能,而且价廉,制造容易,所以目前活塞环材料仍以铸铁为主,并朝组成软基体硬质点的耐磨机构方向发展,采用单一元素或多 Piston ring is one of the key parts of internal combustion engine. Because it works under harsh conditions of high temperature, high speed and high pressure, and suffers many kinds of wear such as abrasive wear, frictional wear and corrosion wear, it is required that piston ring material should have good Abrasion resistance, corrosion resistance, heat resistance and elasticity as well as sufficient mechanical properties. As cast iron easy to get all the basic performance of the piston ring, but also cheap, easy to manufacture, so the current piston ring material is still mainly cast iron, and toward the composition of the hard point of soft matrix wear-resistant body direction, the use of a single Element or more