Modeling of deformation behavior and texture evolution in magnesium alloy using the intermediate $$\phi$$-model

Journal Article · Mon Jan 06 04:00:00 EST 2014 · International Journal of Plasticity

DOI:https://doi.org/10.1016/j.ijplas.2013.06.005· OSTI ID:1332629

Li, Dongsheng; Ahzi, Said; M'Guil, S. M.; Wen, Wei; Lavender, Curt A.; Khaleel, Mohammad A.

The viscoplastic intermediate phi-model was applied in this work to predict the deformation behavior and texture evolution in a magnesium alloy, an HCP material. We simulated the deformation behavior with different intergranular interaction strengths and compared the predicted results with available experimental results. In this approach, elasticity is neglected and the plastic deformation mechanisms are assumed as a combination of crystallographic slip and twinning systems. Tests are performed for rolling (plane strain compression) of random textured Mg polycrystal as well as for tensile and compressive tests on rolled Mg sheets. Simulated texture evolutions agree well with experimental data. Activities of twinning and slip, predicted by the intermediate $$\phi$$-model, reveal the strong anisotropic behavior during tension and compression of rolled sheets.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1332629
• Report Number(s): PNNL-SA-114911; VT0505000
• Journal Information: International Journal of Plasticity, Journal Name: International Journal of Plasticity Vol. 52; ISSN 0749-6419
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

$\phi$-Model
Crystal plasticity
Magnesium alloy
Texture