The preparation of Ti-6Al-4V alloy rod and blade by metal mold suction casting and the effects of hydrogen on them

被引：0
|
作者：
Wang Liang [1 ]
Su Yanqing [1 ]
Ye Xicong [1 ]
Luo Liangshun [1 ]
Guo Jingjie [1 ]
Fu Hengzhi [1 ]
机构：
[1] Harbin Inst Technol, Sch Mat Sci & Engn, Harbin 150001, Peoples R China
来源：
MULTI-FUNCTIONAL MATERIALS AND STRUCTURES II, PTS 1 AND 2 | 2009年 / 79-82卷
关键词：
suction casting; hydrogen; grain size; mechanical properties; ALPHA-TITANIUM-ALLOYS; HOT-WORKING; OXIDATION; BEHAVIOR;
D O I：
10.4028/www.scientific.net/AMR.79-82.1659
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In the article this is a new way to prepare Ti-6Al-4V alloy rod and blade by metal mold vacuum suction casting. The effects of hydrogen on the suction casting is also studied. It is found that the alloy melt can be sucked up easily by the mold and has a better fluidity because of H-2. Hydrogen can make the electrical current for suction casting decrease sharply compared with the electrical current in Ar. Hydrogen can refine the grain size of the alloy rod and blade. Compared with the unhydrogenated specimen, the peak stress of the hydrogenated specimens increase about 20%, because hydrogen decreases the volume fraction and size of shrinkage porosity.
引用
收藏
页码：1659 / 1662
页数：4
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