Adjusting approaches of basal texture for improvement of tension-compression asymmetry in extruded magnesium alloys

ABSTRACT

Texture adjusting approaches of divergence, inclination, and deviation were proposed to improve the tension-compression asymmetry in magnesium alloys. The dominant deformation mechanism during tensile and compressive yielding was quantified based on the Sachs assumption and primarily manifested as the extent of twinning inhibition and the transition between twinning and slip with the variation of texture adjustment. Its impacts on associated yield strength and asymmetry were estimated by the modified Hall-Petch relationship. Slight texture adjustments, particularly of basal texture divergence, can significantly improve the strength asymmetry while avoiding severe strength loss, illustrating the significance and potential of texture adjustment in engineering.

GRAPHICAL ABSTRACT

IMPACT STATEMENT

Yield strength and the contribution of deformation mechanisms were predicted using the modified Hall-Petch relationship, and texture adjustment strategies were further established to improve tension-compression asymmetry.

KEYWORDS:

• Magnesium alloys
• texture adjustment
• tension-compression asymmetry

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by National Natural Science Foundation of China [grant number 51975146, 52205344], Shandong Province Natural Science Foundation [grant number ZR2020QE171]. This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIP) [grant number NRF-2021R1A2C3006662, NRF-2022R1A5A1030054].