Elevated-temperature deformation at forming rates of 10(-2) to 10(2)s(-1)

In the hot working at constant strain rate (epsilon) of Al and a Fe alloys at 0.5 to 0.9 T^sub M^ (absolute melting temperature), steady-state deformation is achieved in similarity to creep, which is usually at constant stress. After an initial strain-hardening transient, the flow stress becomes con...

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Bibliographic Details
Published inMetallurgical and materials transactions. A, Physical metallurgy and materials science Vol. 33; no. 2; p. 345
Main Author McQueen, H J
Format Journal Article
LanguageEnglish
Published New York Springer Nature B.V 01.02.2002
Subjects
Aluminum
Heat treating
Iron
Materials science
Metallurgy
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Summary:In the hot working at constant strain rate (epsilon) of Al and a Fe alloys at 0.5 to 0.9 T^sub M^ (absolute melting temperature), steady-state deformation is achieved in similarity to creep, which is usually at constant stress. After an initial strain-hardening transient, the flow stress becomes constant in association with a substructure which remains equiaxed and constant in the spacing of sub-boundaries and of dislocations in both walls and subgrains.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-002-0096-3