Mechanical behavior of TiAl alloys

被引：23

作者：

Xiang, HengGao ^{[1
]}

Chen, Yang ^{[1
]}

Qi, ZhiXiang ^{[1
]}

Zheng, Gong ^{[1
]}

Chen, FengRui ^{[1
]}

Cao, YueDe ^{[1
]}

Liu, Xu ^{[1
]}

Zhou, Bing ^{[1
]}

Chen, Guang ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Engn Res Ctr Mat Behav & Design, Natl Key Lab Adv Casting Technol, MIIT Key Lab Adv Met & Intermet Mat Technol,Minist, Nanjing 210094, Peoples R China

来源：

SCIENCE CHINA-TECHNOLOGICAL SCIENCES | 2023年 / 66卷 / 09期

基金：

中国国家自然科学基金;

关键词：

TiAl; tension; creep; fatigue; strengthening mechanisms; FATIGUE-CRACK-GROWTH; HIGH-TEMPERATURE DEFORMATION; POLYSYNTHETICALLY TWINNED CRYSTALS; TIAL/TI3AL LAMELLAR MICROSTRUCTURE; TITANIUM ALUMINIDE ALLOYS; HIGH-NB; PST CRYSTALS; CREEP-BEHAVIOR; DIRECTIONAL SOLIDIFICATION; FRACTURE-BEHAVIOR;

D O I：

10.1007/s11431-022-2186-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Intermetallic TiAl alloys attract much attention in advanced engineering fields due to their low density (3.9-4.2 g/cm(3)) and excellent high-temperature properties. After more than half a century of research and development, TiAl alloys have found applications in aerospace, automotive, and related industries. However, as a kind of semi-brittle materials, intermetallic TiAl alloys exhibit different mechanical behavior from metallic and ceramic materials. Thus, it is necessary to systematically understand their mechanical behavior to ensure further developments and safe engineering applications. In this paper, the principal mechanical behavior of TiAl alloys was reviewed comprehensively, including tension, creep, fatigue, and strengthening mechanisms. The mechanical performance and the corresponding deformation mechanisms are summarized and discussed in detail. The future directions of mechanical research on TiAl alloys are also overviewed to expedite their extensive utilization in engineering fields.

引用

页码：2457 / 2480

页数：24

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