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The roles of strain and reheating interval in continuous recrystallization during the thermomechanical processing by warm rolling of an Al-Mg alloy

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Author
Gorsuch, Thomas E.
Date
1989-12
Advisor
McNelley, T.R.
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Abstract
Investigation into the influence of rolling strain and into the variation of properties and structure during reheating intervals between rolling passes in the thermomechanical processing of an Al-9.89Mg-0.09Zr alloy (composition in weight percent) was conducted. Superplastic ductilities up to approximately 1120 percent were achieved by processing to a total strain of 2.5 utilizing a reheating interval of 30 minutes. Conversely, rolling to lesser values of strain with the same reheating interval or rolling to a strain of 2.5 and using a 5 minute reheating interval produced ductilities less than 400 percent. A strong correlation was demonstrated between results achieved and a qualitative model for continuous recrystallization during thermomechanical processing previously proposed.
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
URI
http://hdl.handle.net/10945/27245
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  • 1. Thesis and Dissertation Collection, all items

Related items

Showing items related by title, author, creator and subject.

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    Thermomechanical processing of M-50 steel. 

    Larson, Keith Robert Jr. (Monterey, California. Naval Postgraduate School, 1983-06);
    Thermomechanical processing of AISI M-50 bearing steel was accomplished by an initial austenitize and quench followed by reheating and warm-rolling to a true strain of 2.0. Warm-rolling was successfully conducted at ...
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    The influence of warm rolling parameters (temperature and reheating time between passes) on the superplastic response of Al-Mg alloys 

    Kuhnert, George J., Jr. (1988);
    The effects of rolling temperature and reheating interval between consecutive rolling passes on the superplastic response of two Al-Mg alloys were investigated. The alloys were Al-8%Mg-0 .1%Zr and Al-10%Mg-0 .1%Zr (wt. ...
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    The influence of thermomechanical processing on the elevated temperature mechanical behavior of 6061 aluminum - alumina metal matrix composite materials 

    Magill, Marvin D. (Monterey, California: Naval Postgraduate School, 1990-12);
    A cast, aluminum-based discontinuous metal matrix composite was thermomechanically processed. The material studied was 6061 aluminum containing 10 vol. pct. or 15 vol. pct. alumina (Al2O3) particles, fabricated by casting ...
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