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Fabrication of multilayered titanium aluminide sheets by self-propagating high-temperature synthesis reaction using hot rolling and heat treatment

Title
Fabrication of multilayered titanium aluminide sheets by self-propagating high-temperature synthesis reaction using hot rolling and heat treatment
Authors
Oh, JPyo, SGLee, SKim, NJ
POSTECH Authors
Lee, SKim, NJ
Date Issued
Jan-2003
Publisher
KLUWER ACADEMIC PUBL
Abstract
This study is concerned with the fabrication of multilayered and bulk Ti aluminide sheets by self-propagating high-temperature synthesis (SHS) reaction using hot rolling and heat treatment. A multilayered Ti/Al sheet was prepared by stacking thin Ti and Al sheets alternatively. When this sheet was hot-rolled and heat-treated at 1000degreesC, a multilayered sheet composed of Ti3Al and TiAl was made through the process of formation and growth of intermetallic phases at Ti/Al interfaces and porosity reduction. A bulk Ti aluminide sheet having a lamellar structure of TiAl and Ti3Al was also fabricated successfully by heat treatment at 1400degreesC. (C) 2003 Kluwer Academic Publishers.
Keywords
INTERMETALLIC COMPOSITES; FAILURE
URI
http://oasis.postech.ac.kr/handle/2014.oak/29707
ISSN
0022-2461
Article Type
Article
Citation
JOURNAL OF MATERIALS SCIENCE, vol. 38, no. 17, page. 3647 - 3651, 2003-01
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 LEE, SUNG HAK
Dept of Materials Science & Enginrg
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