Cyclic deformation behavior of high-purity titanium single crystals: Part II. Microstructure and mechanism

被引：0
|
作者：
X. Tan
H. Guo
H. Gu
C. Laird
N. D. H. Munroe
机构：
[1] Florida International University,the Hemispheric Center for Environmental Technology
[2] Ecole Polytechnique,the Department of Metallurgy and Materials Engineering
[3] Xi’an Jiaotong University,the Research Institute for Strength of Metals
[4] University of Pennsylvania,the Department of Materials Science and Engineering
[5] Florida International University,the Hemispheric Center for Environmental Technology
来源：
Metallurgical and Materials Transactions A | 1998年 / 29卷
关键词：
Material Transaction; Slip System; Slip Band; Screw Dislocation; Slip Line;
D O I：
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中图分类号：
学科分类号：
摘要：
Strain-controlled cyclic tests have been conducted on high-purity titanium single crystals with different orientations. The fatigue mechanisms of the titanium crystals were studied by means of a scanning electron microscope (SEM) and a transmission electron microscope (TEM). It was found that single slip lines, wavy slip lines, double slip lines, twins, and associated slip lines occurred in differently oriented single crystals. A new type of fractographic morphology, parallel traces, was observed. Dislocation patterns and cyclic twins, as well as the mechanical response, were analyzed. The dependence of the deformation mechanisms on the orientations of the single crystals is discussed.
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页码：513 / 518
页数：5
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