Effect of hydrogenation on the microstructure of Ti-5.6Al-4.8Sn-2.0Zr alloy

作     者：LI Miaoquan LIN Yingying 

作者机构：School of Materials Science and Engineering Northwestern Polytechnical University Xi＇an 710072 China 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2009年第28卷第4期

页      面：343-345页

核心收录：

学科分类：081704[工学-应用化学] 081705[工学-工业催化] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：support from the Natural Science Foundation of China (No. 50371068) the Aeronautic Science Foundation of Aviation Industries of China (No. 04H53058) 

主　　题：titanium alloys hydrogenation hydride phase phase transition temperature 

摘      要：The hydride phase in the Ti-5.6Al-4.8Sn-2.0Zr alloy after hydrogenation was investigated through TEM and XRD analysis. The experimental results show that the phase transition temperature of the hydrogenated Ti-5.6Al-4.8Sn-2.0Zr alloy is decreased approximately by 150-200℃. XRD analysis verifies that the hydrogenation treatment accelerates the phase transition process from α phase to β phase of the Ti-5.6Al-4.8Sn-2.0Zr alloy, so as to decrease the phase transition temperature of the alloy. Meanwhile, TiH2 hydride （8 phase） with strip structure appears in α phase and β phase.