Actions for Deformation twinning of non-stoichiometric Ti{sub 3}Al alloy [electronic resource].

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Deformation twinning of non-stoichiometric Ti{sub 3}Al alloy [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 1995.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
6 pages : digital, PDF file
Additional Creators
Oak Ridge National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Non-stoichiometric Ti₃Al polycrystals with DO₁₉ structure have been deformed in compression to a true strain of about 8% at temperatures ranging from 973 K to 1,373 K and at an initial strain rate of 1.3 x 10{sup −4}/s. Deformation modes are observed focusing on twinning. It is found that deformation twinning of non-stoichiometric Ti₃Al occurs in the temperature range of 1,073 K to 1,373 K. Crystallographic characteristics of deformation twinning systems are revealed by optical and transmission electron microscopy and X-ray Laue method. it is shown that most deformation twins are macroscopically lens-shaped and their width is increased with increasing temperature. Also, the volume fraction of deformation twins is increased with increasing strain at 1,273 K and temperature in the range of 1,073 K to 1,273 K. A dominant deformation twinning system observed in the samples deformed at temperatures from 1,073 K to 1,373 K is identified as (11{bar 2}2)[11{bar 2}{bar 3}]. {l_brace}11{bar 2}4{r_brace} and {l_brace}10{bar 1}1{r_brace} twins are also operative with a low density.
Report Numbers
E 1.99:conf-9506209--2
conf-9506209--2
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
12/31/1995.
"conf-9506209--2"
"DE96005648"
2. Pacific Rim international conference on advanced materials and processing (PRICM-2), Kyongju (Korea, Republic of), 18-22 Jun 1995.
Lee, J.W.; Yoo, M.H.; Hanada, S.
Funding Information
AC05-84OR21400
View MARC record | catkey: 14455100