A Short Review on the Phase Structures, Oxidation Kinetics, and Mechanical Properties of Complex Ti-Al Alloys

被引：22

作者：

Lim, Hooi Peng ^{[1
]}

Liew, Willey Yun Hsien ^{[1
]}

Melvin, Gan Jet Hong ^{[1
]}

Jiang, Zhong-Tao ^{[2
]}

机构：

[1] Univ Malaysia Sabah, Fac Engn, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia

[2] Murdoch Univ, Surface Anal & Mat Engn Res Grp, Chem & Phys, Coll Sci Hlth Engn & Educ, Perth, WA 5150, Australia

来源：

MATERIALS | 2021年 / 14卷 / 07期

关键词：

phase structures; oxidation kinetics; oxide scales; Ti-Al alloys; alloying elements;

D O I：

10.3390/ma14071677

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

This paper reviews the phase structures and oxidation kinetics of complex Ti-Al alloys at oxidation temperatures in the range of 600-1000 degrees C. The mass gain and parabolic rate constants of the alloys under isothermal exposure at 100 h (or equivalent to cyclic exposure for 300 cycles) is compared. Of the alloying elements investigated, Si appeared to be the most effective in improving the oxidation resistance of Ti-Al alloys at high temperatures. The effect of alloying elements on the mechanical properties of Ti-Al alloys is also discussed. Significant improvement of the mechanical properties of Ti-Al alloys by element additions has been observed through the formation of new phases, grain refinement, and solid solution strengthening.

引用

页数：24

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