Deformation characteristics of Ti-6Al-4Fe alloys with enhanced high temperature ductility

被引：10

作者：

Kim, Seong-Woong ^{[1
]}

Kim, Jeoung Han ^{[1
]}

Song, Yong Hwan ^{[1
]}

Hong, Jae Keun ^{[1
]}

Hyun, Yong Taek ^{[1
]}

Yeom, Jong-Taek ^{[1
]}

机构：

[1] KIMS, Light Met Div, Chang Won 642831, South Korea

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2013年 / 559卷

关键词：

Titanium alloy; High temperature deformation; Tensile test; Transmission electron microscopy (TEM); Electron backscatter diffraction (EBSD); TITANIUM-ALLOYS; HOT-WORKING; MICROSTRUCTURE; GLOBULARIZATION; SUPERPLASTICITY; BEHAVIOR; FLOW;

D O I：

10.1016/j.msea.2012.08.039

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Deformation behavior of Ti-6Al-4Fe alloys with high strength and formability was investigated by conducting high temperature tensile test. In tensile test at room temperature, the strength of Ti-6Al-4Fe alloys was higher than that of a commercial Ti-6Al-4V alloy with a similar level of elongation. In particular, the high temperature (700 degrees C) elongation was dramatically increased in Ti-6Al-4Fe alloys showing similar to 800% superplasticity. Grain boundary sliding and suppression of cavity formation (i.e., easier accommodation) during gb sliding due to beta phase were found to be possible mechanisms for the superplasticity of Ti-6Al-4Fe alloys. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：96 / 100

页数：5

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