Influence of {10-12} extension twinning on the flow behavior of AZ31 Mg alloy

Uniaxial compression tests were performed on samples cut along the extrusion direction from AZ31 Mg alloy tubes. A stage of increasing work hardening rate was observed on representative true σ– ɛ curves. Specimens compressed to various strain levels were examined by optical microscopy and electron b...

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Veröffentlicht in:	Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2007-02, Vol.445, p.302-309
Hauptverfasser:	Jiang, Lan, Jonas, John J., Luo, Alan A., Sachdev, Anil K., Godet, Stéphane
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Cold working, work hardening annealing, quenching, tempering, recovery, and recrystallization textures Cross-disciplinary physics: materials science rheology EBSD Elasticity. Plasticity Exact sciences and technology Magnesium Materials science Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy Physics Treatment of materials and its effects on microstructure and properties Work hardening {10-12} twinning
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Zusammenfassung:	Uniaxial compression tests were performed on samples cut along the extrusion direction from AZ31 Mg alloy tubes. A stage of increasing work hardening rate was observed on representative true σ– ɛ curves. Specimens compressed to various strain levels were examined by optical microscopy and electron backscattered diffraction (EBSD) techniques. The results indicate that the widespread formation of intersecting {10-12} extension twins is responsible for the increased strain hardening rate.
ISSN:	0921-5093 1873-4936
DOI:	10.1016/j.msea.2006.09.069