(北京航空制造工程研究所， 北京100024)
摘 要: 鈦合金熱氫處理技術(shù)是利用氫致塑性、 氫致相變以及鈦合金中氫的可逆合金化作用以實現(xiàn)鈦氫系統(tǒng)最佳組織結(jié)構(gòu)、 改善加工性能的一種新體系、新方法和新手段， 利用該技術(shù)不僅可以改善鈦合金的加工性能， 而且可以提高鈦制件的使用性能， 降低鈦產(chǎn)品的制造成本， 提高鈦合金的加工效率。 綜述了鈦合金中氫對改善壓力加工、擴散加工、 機械加工和鑄造鈦合金變質(zhì)加工的組織、 力學(xué)性能和加工性能的作用， 簡要分析了其改性機理， 展望了鈦合金熱氫處理技術(shù)的應(yīng)用前景。
關(guān)鍵字: 鈦合金； 氫； 氫致塑性； 氫致相變
WANG Ya-jun， GUAN Qiao
（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
