Processing properties of nano- and submicro-crystalline Ti-6Al-4V titanium alloy

被引：22

作者：

Lutfullin, R. Y. ^{[1
]}

Kruglov, A. A. ^{[1
]}

Safiullin, R. V. ^{[1
]}

Mukhametrakhimov, M. K. ^{[1
]}

Rudenko, O. A. ^{[1
]}

机构：

[1] Inst Met Superplast Problems, Ufa 450001, Russia

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2009年 / 503卷 / 1-2期

关键词：

Nanostructured alloy; Superplastic forming; Pressure welding;

D O I：

10.1016/j.msea.2008.02.060

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper reports the results of experiments on superplastic forming (SPF) and pressure welding (PW) performed with sheets of nano- and submicro-crystalline Ti-6Al-4V alloy The decrease in the mean grain size of Ti-6Al-4V alloy sheets from 0.4 to 0.2 mu m allows the decrease of the SPF temperature from 750 to 600 degrees C and the fabrication of cylindrical samples with appropriate shape, bending radius and thickness distribution. Due to the low temperature superplasticity flow stress, sound solid state joint (SSJ) for nanostructured Ti-6Al-4V alloy was obtained at 600 degrees C. The decrease of the mean grain size to nano- and submicro-crystalline sizes allows the application of the "low temperature superplasticity" for processing hollow components out of Ti-6Al-4V alloy by combining SPF and PW. (C) 2008 Elsevier B.V. All rights reserved

引用

页码：52 / 54

页数：3

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