Structure and properties of high strength and ductile Ti-Fe-Cu-Nb-Sn alloys

被引：24
作者：
Louzguine-Luzgin, Dmitri V. [1 ]
Louzguina-Luzgina, Larissa V. [2 ]
Saito, Takanobu [2 ]
Xie, Guoqiang [2 ]
Inoue, Akihisa [1 ]
机构：
[1] Tohoku Univ, WPI Adv Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
[2] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2008年 / 497卷 / 1-2期
关键词：
Ti alloys; Mechanical properties; X-ray diffraction; Scanning electron microscopy; Transmission electron microscopy;
D O I：
10.1016/j.msea.2008.06.020
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
High-strength Ti-Fe-Cu, Ti-Fe-Cu-Nd, Ti-Fe-Cu-Sn and Ti-Fe-Cu-Nd-Sn alloys were produced in the shape of arc-melted ingots with the dimensions of about 30 mm in diameter and 10 mm in height. The structure of these alloys consists of an ordered cP2 Ti(Fe,Cu) intermetallic compound and a disordered BCC c12 beta-Ti solid solution. The high strength values result from the high Fe and Cu contents in the supersaturated beta-Ti solid solution (solution hardening) and high hardness of the Ti(Fe,Cu) intermetallic compound having a rounded morphology. The high strength and ductility values can be achieved without using the injection mould casting or rapid solidification procedure. Fine structure of the studied alloys, their deformation behavior and the fractography are also studied. (C) 2008 Elsevier B.V. All rights reserved.
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页码：126 / 131
页数：6
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