Tailoring the Microstructure and Properties of Mg-2.0Zn-0.4Mn-4.0Al Alloy by Hot Extrusion
Xiong, Yi; Tang, Jin-jin; Zha, Xiao-qin; Wang, Shu-bo; Cao, Wei (2023-10-31)
Springer
31.10.2023
Xiong, Y., Tang, Jj., Zha, Xq. et al. Tailoring the Microstructure and Properties of Mg-2.0Zn-0.4Mn-4.0Al Alloy by Hot Extrusion. J. of Materi Eng and Perform 33, 13132–13140 (2024). https://doi.org/10.1007/s11665-023-08873-7
https://rightsstatements.org/vocab/InC/1.0/
© ASM International. This is a post-peer-review, pre-copyedit version of an article published in Journal of Materials Engineering and Performance. The final authenticated version is available online at: https://doi.org/10.1007/s11665-023-08873-7
https://rightsstatements.org/vocab/InC/1.0/
© ASM International. This is a post-peer-review, pre-copyedit version of an article published in Journal of Materials Engineering and Performance. The final authenticated version is available online at: https://doi.org/10.1007/s11665-023-08873-7
https://rightsstatements.org/vocab/InC/1.0/
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202406244881
https://urn.fi/URN:NBN:fi:oulu-202406244881
Tiivistelmä
Abstract
This study aimed to investigate the influence of extrusion temperature (ranging from 330 to 370 °C) on the microstructure, mechanical properties, and corrosion resistance of the Mg-2.0Zn-0.4Mn-4.0Al alloy. The findings reveal that dynamic recrystallization (DRX) occurs in all the as-cast Mg alloys, particularly noticeable at 350 °C. Lower extrusion temperatures result in uncomplete DRX, and insufficient dissolution and rearrangement of as-cast second phase particles, while higher temperatures induce significant grain growth of recrystallized grain. Consequently, due to finer and more homogenous recrystallized grains and the more evenly distributed second phase Mg2(Zn, Al)11 and Mg17Al12, the as-extruded Mg alloy at 350 °C exhibits superior mechanical properties and corrosion resistance, compared with all other as-extruded and as-cast counterparts. The results demonstrated that this Mg-2.0Zn-0.4Mn-4.0Al processed by casting and following hot extrusion at an appropriate temperature can be a potential candidate for new high-performance and cost-effective non-RE Mg alloys.
This study aimed to investigate the influence of extrusion temperature (ranging from 330 to 370 °C) on the microstructure, mechanical properties, and corrosion resistance of the Mg-2.0Zn-0.4Mn-4.0Al alloy. The findings reveal that dynamic recrystallization (DRX) occurs in all the as-cast Mg alloys, particularly noticeable at 350 °C. Lower extrusion temperatures result in uncomplete DRX, and insufficient dissolution and rearrangement of as-cast second phase particles, while higher temperatures induce significant grain growth of recrystallized grain. Consequently, due to finer and more homogenous recrystallized grains and the more evenly distributed second phase Mg2(Zn, Al)11 and Mg17Al12, the as-extruded Mg alloy at 350 °C exhibits superior mechanical properties and corrosion resistance, compared with all other as-extruded and as-cast counterparts. The results demonstrated that this Mg-2.0Zn-0.4Mn-4.0Al processed by casting and following hot extrusion at an appropriate temperature can be a potential candidate for new high-performance and cost-effective non-RE Mg alloys.
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