Precipitation behavior and microstructural characteristics of hydrogenated β-Ti40 alloys

被引:16
作者
Zong, Y. Y. [1 ]
Shan, D. B. [1 ]
Luo, Y. S. [1 ]
机构
[1] Harbin Inst Technol, Dept Mat Sci & Engn, Harbin 150001, Heilongjiang, Peoples R China
基金
中国国家自然科学基金;
关键词
beta-Titanium alloy; Hydrogenation; Microstructure; Ti5Si3; precipitation; BURN-RESISTANT ALLOYS; BETA-TITANIUM ALLOYS; THERMAL-STABILITY; TI-6AL-4V ALLOY; CREEP-BEHAVIOR; SOLID-SOLUTION; DEFORMATION; TEMPERATURE; PHASE;
D O I
10.1016/j.ijhydene.2009.03.035
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The effects of hydrogen additions (hydrogen content, C-H = 0-0-9 Wt.%) on microstructural characteristics and precipitation behavior have been investigated in beta-Ti40 titanium alloy of the general composition Ti-25V-15Cr-0.2Si (wt.%). The microstructures were studied using optical microscopy (OM), X-ray diffractometry (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results showed that hydrogen addition had a noticeable influence on microstructure of beta-Ti alloy. Hydrogen addition decreased the solid solution solubility of Si element leading to the precipitation of Ti5Si3 phase. Effect of hydrogen content on the microstructural model was established. (C) 2009 Published by Elsevier Ltd on behalf of International Association for Hydrogen Energy.
引用
收藏
页码:4900 / 4905
页数:6
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