Friction stir extrusion for fabricating Mg-RE alloys with high strength and ductility

作者：Li, Junchen; Meng, Xiangchen; Li, Yulong; Wan, Long^*; Huang, Yongxian^*

来源：Materials Letters, 2021, 289: 129414.

DOI：10.1016/j.matlet.2021.129414

• Metals and alloys
• Friction stir extrusion
• Microstructure
• Recrystallization
• Mechanical properties

We proposed a severe plastic deformation process named friction stir extrusion to fabricate high strength-and-ductility rare-earth containing Mg alloys. Grain refinement and homogeneously dispersion of second-phases were obtained under the coupling thermo-mechanical effect, which resulted in the yield strength, ultimate strength and compression strain increased by 42.5%, 63.6% and 35.5% respectively.

• 单位
  harbin inst technol