(北京航空制造工程研究所, 北京100024)
摘 要: 钛合金热氢处理技术是利用氢致塑性、 氢致相变以及钛合金中氢的可逆合金化作用以实现钛氢系统最佳组织结构、 改善加工性能的一种新体系、新方法和新手段, 利用该技术不仅可以改善钛合金的加工性能, 而且可以提高钛制件的使用性能, 降低钛产品的制造成本, 提高钛合金的加工效率。 综述了钛合金中氢对改善压力加工、扩散加工、 机械加工和铸造钛合金变质加工的组织、 力学性能和加工性能的作用, 简要分析了其改性机理, 展望了钛合金热氢处理技术的应用前景。
关键字: 钛合金; 氢; 氢致塑性; 氢致相变
(Beijing Aeronautical Manufacturing Technology Research Institute,
Beijing 100024,China)
Abstract:Technology of hydrogen treatment for titanium alloy is a kind of new system for completing optimum control of Ti-H microstructure and improving process ability by means of using hydrogen deduced plasticity, hydrogen deduced phase transformation and effect of reversible hydrogen alloying. Hydrogen treatment for titanium alloy to improve microstructure, mechanical properties and process capability, such as metal forming, diffusion process, machining and alternative process for casting titanium alloy were summarized, the mechanism of improving process capability was analyzed, and its application prospect was prospected.
Key words: titanium alloy; hydrogen; hydrogen deduced plasticity; hydrogen deduced phase transfor