MECHANICAL PROPERTIES OF BIOMEDICAL β-TYPE TITANIUM ALLOY WITH RARE-EARTH METAL OXIDE PARTICLES FORMED BY RARE-EARTH METAL ADDITION

被引：0

作者：

Hieda, Junko ^{[1
]}

Niinomi, Mitsuo ^{[1
]}

Nakai, Masaaki ^{[1
]}

Cho, Ken ^{[1
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

TMS 2014 SUPPLEMENTAL PROCEEDINGS | 2014年

关键词：

beta-type titanium alloy; rare-earth metal; oxide particles; dispersion strengthening; mechanical properties; TI-29NB-13TA-4.6ZR;

D O I：

暂无

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The formation of a dispersion of rare-earth metal oxide particles in Ti-29Nb-13Ta-4.6Zr alloy (TNTZ) was studied in order to improve the mechanical properties of TNTZ without increasing its Young's modulus. This dispersion of oxide particles was formed through a reaction between the added rare-earth metal and the oxygen contained in TNTZ. Yttrium or cerium was added to TNTZ for this purpose. Well-dispersed oxide particles are formed, especially in the case of the Y-added TNTZ. Low Young's modulus is retained in both Y- and Ce-added TNTZ. The tensile strength of Y-added TNTZ with a Y concentration of 0.1 mass% improves by 11% as compared to that of TNTZ. The 0.2% proof stress slightly increases in Y- and Ce-added TNTZ for Y concentrations below 0.1 mass% and a Ce concentration of 0.05 mass%.

引用

页码：129 / 135

页数：7

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