Ti-V-CrBCC alloys system with high protium content

被引：36

作者：

Okada, M ^{[1
]}

Kuriiwa, T ^{[1
]}

Tamura, T ^{[1
]}

Takamura, H ^{[1
]}

Kamegawa, A ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Mat Sci, Aoba Ku 02, Sendai, Miyagi 9808579, Japan

来源：

METALS AND MATERIALS-KOREA | 2001年 / 7卷 / 01期

关键词：

hydrogen storage alloy; V-based alloys; C14 Laves phase; BCC alloys; high capacity of hydrogen;

D O I：

10.1007/BF03026941

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

This paper aims to study the relationship between the protium absorption properties and alloy composition of Ti-V-Cr alloys. We studied the effects of composition of the alloys and the heat-treatment on the protium absorption-desorption properties of Ti-V-Cr alloys, and found that Ti-35V-40Cr alloys show 2.6 mass% protium capacity. The plateau pressure of the alloys increased with decreasing lattice constants, resulting from increasing Cr content. The main phase of the samples containing more than 15%V was a BCC phase in the cast state. These BCC phase alloys exhibited 2.4, mass% protium. It was also found that the heat-treatment was effective in stabilizing a BCC structure in Ti-V-Cr alloys with low V content. The alloy yields the high capacity of 3.0 mass% protium capacity, which will be the highest value at 313 K reported so far. The alloy will be promising since it contains a low amount of the expensive V element.

引用

页码：67 / 72

页数：6

共 8 条

[1]

Hydrogen absorption by Laves phase related BCC solid solution [J].