Strength and high fatigue properties of ultrafine-grained titanium rods produced by severe plastic deformation

被引：3
|
作者：
Semenova I.P. [1 ]
机构：
[1] Institute of Physics of Promising Materials, Ufa State Aviation Technical University, Ufa, Bashkortostan 450000
来源：
Russian Metallurgy (Metally) | 2010年 / 2010卷 / 09期
关键词：
Equal channel angular pressing;
D O I：
10.1134/S0036029510090132
中图分类号：
学科分类号：
摘要：
The formation of an ultrafine-grained structure (UFGS) in titanium by severe plastic deformation significantly increases its mechanical properties, among them fatigue strength. In this work, high mechanical properties of titanium long rods are achieved using a combination of equal-channel angular pressing and subsequent thermal and thermomechanical treatment. The formation of a homogeneous UFGS in a rod of commercial titanium is found to increase the fatigue limit by a factor of about 1.5. Moreover, the fatigue strength of UFGS titanium estimated on notched specimens is higher than that of coarse-grained titanium, which is important for its structural application in medicine. © 2010 Pleiades Publishing, Ltd.
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收藏
页码：831 / 836
页数：5
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