Influence of Al content on the strain-hardening behavior of aged low density Fe–Mn–Al–C steels with high Al content

Influence of Al content on the strain-hardening behavior of aged low density Fe–Mn–Al–C steels with high Al content

The influence of Al content on the microstructure, deformation behavior and strain hardening rate of aged high strength low density Fe–Mn–Al–C steels was investigated. Increasing the Al content in the steels increases the volume fraction of shearable nanocrystalline coherent κ-carbide precipitates....

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2015-07, Vol.639, p.187-191
Hauptverfasser: Wu, Z.Q., Ding, H., An, X.H., Han, D., Liao, X.Z.
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum
Deformation mechanism
Density
Fe–Mn–Al–C steels
Materials science
Microstructure
Planar slip
Strain hardening
Strain hardening rate
Strain softening
Structural materials
Structural steels
κ-carbide
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Zusammenfassung:The influence of Al content on the microstructure, deformation behavior and strain hardening rate of aged high strength low density Fe–Mn–Al–C steels was investigated. Increasing the Al content in the steels increases the volume fraction of shearable nanocrystalline coherent κ-carbide precipitates. This results in strengthening the strain softening effect on glide planes and a decreased density of slip bands, leading to significant decrease of the strain hardening rate.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2015.05.002