Multi-Slips and Ductility Regulation of Magnesium Alloys
Received date: 2024-10-29
Revised date: 2025-01-06
Online published: 2025-01-14
Supported by
National Natural Science Foundation of China(52425101);National Natural Science Foundation of China(52471012)
Despite recent advancements in enhancing their absolute strength, magnesium alloys continue to face significant challenges due to their limited ductility and formability. This strength-ductility trade-off restricts the use of magnesium components in processing applications. This work explores the potential of improving the ductility of magnesium alloys by focusing on their crystal properties and plastic deformation mechanisms. The concept of multi-slips promoting ductility is proposed as a solution. By tailoring solute atoms and regulating the critical resolved shear stress ratios of basal and nonbasal slip systems through temperature adjustments, additional slip systems can be activated, thereby reducing plastic deformation anisotropy. External modifications, such as refining grain size or introducing deformable phases, can activate new plastic deformation mechanisms beyond dislocation slip. These adjustments offer methods to accommodate the plastic strain of magnesium alloys, presenting new perspectives for enhancing magnesium ductility and formability.
ZENG Xiaoqin , YU Mingdi , WANG Jingya . Multi-Slips and Ductility Regulation of Magnesium Alloys[J]. Acta Metall Sin, 2025 , 61(3) : 361 -371 . DOI: 10.11900/0412.1961.2024.00358
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