The preparation of Ti-6Al-4V alloy rod and blade by metal mold suction casting and the effects of hydrogen on them
(0) 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 H2. 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.
suction casting hydrogen grain size mechanical properties
Wang Liang Su Yanqing Ye Xicong Luo liangshun Guo Jingjie Fu Hengzhi
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001,China
国际会议
青岛
英文
1659-1662
2009-10-09（万方平台首次上网日期，不代表论文的发表时间）