激光淬火对钛合金高温干摩擦特性影响的实验研究

基金项目:

中国科学院固体润滑开放实验基金;航空科学基金

详细信息

Experimental study on dry friction characteristics of titanium alloy TC11 before and after laser beam quenching

1.
Department of Mechanical Engineering, Nanjing University of Aeronautics And Astronautics, Nanjing, 210016;
2.
Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000

摘要: 报道了钛合金TC11对轴承钢GCr15在室温到450℃大气环境下,激光淬火前后球盘对比研究。结果表明,经激光处理后,钛合金在150℃和300℃抗磨能力明显提高,但在室温和450℃改善不明显。
- 钛合金 /
- 玻璃化 /
- 滑动摩擦 /
- 激光淬火
Abstract: Titanium alloy is a wide used as the blade material in aeroturbine. This paper reported the experimental results of wear capacity of bearing steel GC15 ball on Ti alloy disk processed by laser beam quenching (LBQ) or not,at the friction temperature of room temperature,150℃, 300℃, 450℃.With the increasing of the f riction temperature from room temperature up to 300℃,the wear rate of surface of Ti alloy increased.The scanning electron micrography proved that the large amount of Fe was found in worn zone of Ti alloy.But it was low greatly at 450℃,and the X-ray photography indicated that an oxide film called glazing layer,which consisted of TiO2,Al2O3 and Fe2O3, formed to resist being worn.By using LBQ,the wear resistance of Ti alloy to dry friction at 150℃ and 300℃ was greatly improved, but there was no obvious improvement at room temperatu re and 450℃.
- titanium alloy /
- glazing /
- sliding wear /
- laser beam quenching

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