Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 527, Issue 3, Pages 854-857Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2009.09.010
Keywords
Al-Zn-Mg-Cu-Zr ally 7010; Sc addition; Thermo-mechanical process; Strain rate-temperature combination; Recrystallization; Superplasticity
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Funding
- Defence Research and Development Organization (DRDO), Government of India
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The influence of small addition of Sc on the superplastic potential of Al-Zn-Mg-Cu-Zr alloy AA 7010 has been examined. The alloy was subjected to a three-step thermo-mechanical process (TMP) and the resultant material (having essentially an unrecrystallized grain structure) was subjected to a strain rate-temperature combination of 1.9 x 10(-2) s(-1), 475 degrees C to develop recrystallized grain structure amenable to superplastic deformation. This resulted in a total elongation of 650%. (C) 2009 Elsevier B.V. All rights reserved.
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