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钛及钛合金具有比重小、比强度高、耐高温、耐超低温、以及能在氧化性介质中工作等优良性能,它最初用于飞机制造工业,嗣后又用于火箭、导弹、造船、冶金、化工和石油等工业部门,是现代技术中很有发展前途的结构材料之一。然而,钛及钛合金在其使用性能上也有不足之处。其一是耐磨性差,一般比钢和耐热合金低40%;其次是在还原性介质(如盐酸、硫酸等)中耐腐蚀性能差;此外,抗蠕变性能也差,即使是在常温下也发生蠕变行为,因而限制了它的应用范围。为了克服这些不足,采用离子氮化新工艺是一
Titanium and titanium alloy with small specific gravity, high specific strength, high temperature resistance, ultra-low temperature, and can work in oxidizing media and other excellent performance, it was originally used in aircraft manufacturing industry, and later used in rockets, missiles, shipbuilding, metallurgy, Chemical and petroleum industries, is one of the most promising structural materials in modern technology. However, titanium and titanium alloys also have disadvantages in their serviceability. One is poor wear resistance, generally 40% lower than steel and heat-resistant alloys; followed by reducing media (such as hydrochloric acid, sulfuric acid, etc.) poor corrosion resistance; In addition, the creep resistance is poor, even at room temperature Under creep behavior also occurs, thus limiting its scope of application. In order to overcome these deficiencies, the use of ion nitriding is a new technology