Microstructure and mechanical properties of directionally solidified high-Nb containing Ti-Al alloys

被引：23

作者：

Duan, Qiuqi ^{[1
]}

Luan, Qingdong ^{[1
]}

Liu, Jing ^{[1
]}

Peng, Liangming ^{[1
]}

机构：

[1] Univ Sci & Technol China, Sch Engn Sci, Dept Modern Mech, CAS Key Lab Mech Behav & Design Mat, Hefei 230026, Anhui, Peoples R China

来源：

MATERIALS & DESIGN | 2010年 / 31卷 / 07期

关键词：

CREEP-BEHAVIOR; ORTHORHOMBIC ALLOYS; TENSILE; SYSTEM; PHASE;

D O I：

10.1016/j.matdes.2010.02.022

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Two high-Nb containing Ti-Al alloys, Ti-16Al-8Nb and Ti-16Al-8Nb-1Sn were fabricated using directional solidification. Their microstructures and mechanical properties at both room and high temperatures were studied. Results showed that the addition of 1% Sn promoted the formation of laths and contributed remarkably to the enhancement in room-temperature strength and high temperature ductility of Ti-Al alloy. The alloys exhibited the feature of quasi-cleavage fracture at room temperature and they experienced significant plastic deformation at high temperatures. (c) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3499 / 3503

页数：5

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