Tensile property response of AZ91 Mg alloy subjected to pre-aging and high-force friction stir processing

Tensile property response of AZ91 Mg alloy subjected to pre-aging and high-force friction stir processing

Pre-aging and high force friction stir processing were applied to Mg–9Al–1Zn alloy. The stir zone exhibited an enhanced yield strength due to grain refinement, dislocation strengthening, precipitate strengthening, and texture randomization. The activation of {101‾2} twins contributed to coordinating...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2022-04, Vol.841, p.143033, Article 143033
Hauptverfasser: Xu, Nan, Shen, Jun, Wang, Dan, Song, Qi-Ning, Zhao, Jian-Hua, Bao, Ye-Feng
Format: Artikel
Sprache:eng
Schlagworte:
Aging
Aging (metallurgy)
Friction stir processing
Grain refinement
Magnesium base alloys
Mg alloy
Microstructure
Plastic deformation
Strengthening
Tensile property
Work hardening
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Zusammenfassung:Pre-aging and high force friction stir processing were applied to Mg–9Al–1Zn alloy. The stir zone exhibited an enhanced yield strength due to grain refinement, dislocation strengthening, precipitate strengthening, and texture randomization. The activation of {101‾2} twins contributed to coordinating plastic deformation for improving the work hardening ability and ductility.
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2022.143033