Studies on the stress-strain relations of dual-phase steels

The correlations of the work-hardening exponent, n , with quenching temp., martensite volume-fraction (MVF) and solute concentration in ferrite are discussed and derived for dual-phase steels (HT-1 and HT-6). The flow stress of dual-phase steel at low strain is suggested to be expressed by the combi...

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Bibliographic Details
Published in:Journal of materials science 1981-10, Vol.16 (10), p.2682-2688
Main Authors: Wan, C. M., Yie, S. N., Jahn, M. T., Kuo, S. M.
Format: Article
Language:English
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Summary:The correlations of the work-hardening exponent, n , with quenching temp., martensite volume-fraction (MVF) and solute concentration in ferrite are discussed and derived for dual-phase steels (HT-1 and HT-6). The flow stress of dual-phase steel at low strain is suggested to be expressed by the combination of the terms due to plastic deformation in ferrite and elastic deformation of martensite. Previous experimental results are compared with the behavior suggested by this theoretical work. In addition, an expression for the work hardening exponents at moderate strains and at the onset of necking are also theoretically suggested. 21 ref.--AA
ISSN:0022-2461
1573-4803
DOI:10.1007/bf02402830