Current Research Status and Development of High-temperature Titanium Alloys
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摘要: 介绍高温钛合金发展历程和目前的应用领域, 对比国内外高温钛合金研究的现状, 以及合金化元素对高温钛合金的影响。目前600℃高温钛合金主要有美国的Ti1100、英国的IMI834、俄罗斯的BT18、BT36以及中国的Ti60、Ti600, 通过分析主要国家高温钛合金的研究发展状况, 工作温度突破600℃并能在高温下长期稳定工作, 需要克服高温抗蠕变和高温抗氧化两个关键阻碍因素。指出了今后高温钛合金的重点研究方向是制备颗粒增强钛基复合材料, 采用3D打印增材制造技术, 加强TiAl基合金的研究。Abstract: In this paper,the development and present application of high-temperature titanium alloys were introduced.The research status and influence of alloying elements on high-temperature titanium alloys domestic and abroad were contrasted and analyzed.Titanium alloys with 600℃ of working temperature mainly include Ti1100 in USA,British IMI834,Russian BT18 and BT36,Chinese Ti60 and Ti600. Combined with the research focus on high-temperature titanium alloys,it was found that two key factors of creep resistance and oxidation resistance should be improved at higher than 600 ℃ of working temperature,for a stable and long-time operation of titanium alloys.The major research orientation for high-temperature titanium alloys in future was proposed to be preparation of particle-reinforced titanium-based composites and improvement of Ti-Al alloys using 3 D printing technologies.
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