Factors influencing tensile ductility of ultrafine-grained Mg–3Al–1Zn alloy sheet at elevated temperatures

Kim, Woo Jin; Lee, B.H.

doi:10.1016/j.msea.2010.05.090

Cited by 6 publications

(1 citation statement)

References 10 publications

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“…However, when the material is severely deformed owing to a high dislocation density, static recrystallization (SRX) occurs at elevated temperatures [18,19]. The grain growth in Mg alloys occurs at temperatures higher than 473 K [20]. Therefore, a commercial AZ31(Mg-3Al-1Zn) alloy is inappropriate for use at high temperatures (>473 K) owing to the weakening of its mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Effect of CaO Addition on Microstructural Evolution Due to the Annealing of AZ31 Alloys Processed by Equal-Channel Angular Pressing (ECAP)

Bae

Shin

Lee

et al. 2023

Metals

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This study demonstrated the application of equal-channel angular processing (ECAP), which was performed via the BC route, to determine the effect of the addition of CaO on the microstructural evolution of an AZ31 alloy due to annealing. Compression tests were performed to evaluate the mechanical properties of the alloy, and the corresponding microstructures were observed to elucidate the flow behavior. Ca-bearing second-phase particles were fragmented with the increase in the number of ECAP passes. The increase in the yield strength and flow stress with the addition of CaO was attributed to the dispersion of the Ca-bearing second-phase particles. When the CaO-added AZ31 and commercial AZ31 alloys were subjected to annealing, their flow stress decreased owing to the grain growth. However, the extent of the decrease in the flow stress for the CaO-added AZ31 alloy was lower than that for the commercial AZ31 alloy.

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Section: Introductionmentioning

confidence: 99%