国内阻燃钛合金工程化技术研究进展

Research Progress on Engineered Technology of Burn-resistant Titanium Alloys in China

阻燃钛合金的研制是防止"钛火"事故的最直接的方法。美国、英国和俄罗斯等均在积极开展阻燃钛合金的阻燃机理及其工程化技术研究,我国阻燃钛合金的基础研究起步较早,但在工程化技术开发及应用方面停滞多年,导致被发达国家拉开差距。近五年来,在材料研制单位和应用研究单位的共同努力下,Ti-V-Cr系阻燃钛合金工程化技术取得了显著进步。本文主要综述了近几年来国内阻燃钛合金工程化技术研究的最新进展;重点介绍了Ti40和WSTi3515S合金大型铸锭、大棒材及大尺寸板坯和环锻件的研制情况,并介绍了阻燃钛合金机械加工技术和摩擦点燃阻燃性能评价方法,最后对我国阻燃钛合金未来发展进行了展望。

Development of burn-resistant titanium alloys is the most direct way to prevent titanium fire failure accidents. United States, Britain and Russia are all actively studying the mechanisms and engineered technologies of burn-resistant titanium alloys. The fundamental research of burn-resistant titanium alloys in China was started earlier, but had stagnated for many years in engineering technology development and applications, resulting in the wide gap compared with the developed countries. In the past five years, the engineered technology of Ti-V-Cr type burn-resistant titanium alloys has made significant progress with the efforts of materials producers and users. In this paper, the latest research progresses of engineered technology for the burn-resistant titanium alloys in China were reviewed, focusing on the developments of the large sized ingots, large sized bars, large sized slabs and ring forgings of Ti40 alloys and WSTi3515 S alloys. The mechanical processing technologies and the burn-resistant performance evaluation methods of friction ignition in titanium alloys were introduced. In addition, the future development of burn-resistant titanium alloys was forecasted.