Influence of melt hydrogenation during induction skull melting process on the solidification microstructure of Ti-6Al-4V alloy

被引：0

作者：

Zhang Yuehong ^{[1
]}

Su Yanqing ^{[1
]}

Ye Xicong ^{[1
]}

Wang Liang ^{[1
]}

Guo Jingjie ^{[1
]}

Fu Hengzhi ^{[1
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Hot Precis Proc Met, Harbin 150001, Peoples R China

来源：

CHINA FOUNDRY | 2010年 / 7卷 / 02期

基金：

中国国家自然科学基金;

关键词：

melt hydrogenation; Ti-6Al-4V; microstructure; refinement; TITANIUM-ALLOYS; PHASE-TRANSFORMATIONS; TENSILE PROPERTIES; ELEMENT;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A new method to modify the solidification microstructure of titanium alloys, named melt hydrogenation, by adding TiH(2) as additive into the melt of titanium alloys during induction skull melting process ( ISM), is put forward and the refining effect of this method on the solidification microstructure of Ti-6Al-4V alloy was studied experimentally. After melt hydrogenation, the grain sizes of as-cast Ti-6Al-4V alloy decreased to 612 mu m from 1,072 mu m, lath-shaped alpha phase was also refined and fine alpha/beta lamellar microstructure was formed when 1.0 wt.% TiH(2) was added. delta-hydride was found in the X-ray diffraction (XRD) spectra of Ti-6Al-4V alloy that prepared with 1.0 wt.% TiH(2) added and the delta-hydride distributes in alpha phase as acicular precipitations.

引用

页码：109 / 112

页数：4

共 15 条

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