Thermomechanical processing of an ultralight Mg-14Li-1Al alloy

Islam, Rezawana; Hadadzadeh, Amir; Wells, Mary A.; Haghshenas, M.

doi:10.1007/s00170-020-06032-z

Cited by 5 publications

(1 citation statement)

References 30 publications

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“…Magnesium (Mg) alloys have become one of the hot topics in many fields due to their adjustable mechanical behavior and corrosion resistance [1,2]. To further expand the application of Mg alloys, Mg metal matrix composites (Mg-MMCs) are being developed step by step, compared to conventional Mg alloys, Mg-MMCs have superior properties, such as higher strength, hardness and corrosion resistance [3,4].…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of friction stir–processed Mg-Zn-Ca biomaterials strengthened with MgO particles

Liu

Cai

Chen

et al. 2021

Int J Adv Manuf Technol

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Magnesium alloy composites play an important role in biomaterials field.In this study, a novel Mg-Zn-Ca matrix composite was reinforced by adding 1.0 wt.% MgO nanoparticles via the high shear casting process. Hereafter, friction stir processing 2 (FSP) was used to achieve a good dispersion of MgO particles and improve the mechanical properties of the composites. After the preparation of the novel composite materials, varied characterization and performance test methods have been selected for comparison. The results illustrate that through FSP, the corresponding microstructure and properties of as-cast MgO/Mg-Zn-Ca composites were significantly modified, and the best combination of the key parameters is 1200 rpm and 60 mm/min for rotational velocity and traveling speed, respectively. After the optimized FSP treatment, the grains size in FSP-processed composites were refined by 42%, to reach 1.04 μm. Due to the grain refinement and the redistribution of MgO particles, the hardness of the FSPprocessed MgO/Mg-Zn-Ca composites were increased by 40%, to reach 101.2 HV.Further, it displayed excellent corrosion resistance as well as strength. Compared to the strengthening through grain refinement, the particle strengthening is more dominant based on the study. And meanwhile, the modified grains and added MgO particles are beneficial to the properties of the nugget zones.

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