Comparative study of extrudability, microstructure, and mechanical properties of AZ80 and BA53 alloys

Jin, Sang-Cheol; Won, Jae; Go, Jongbin; Bae, Jun Ho; Park, Sung Hyuk

doi:10.1016/j.jma.2021.07.009

Cited by 32 publications

(3 citation statements)

References 41 publications

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“…According to the SEM point scanning result of phase 1, it was verified as Mg 3 Bi 2 phase ( Figure 6 d). According to the equilibrium phase diagram for Mg- x Al-3Bi ( x = 0–4 wt%) alloy [ 8 ], at an extrusion temperature of 350 °C, dynamic precipitation of fine Mg 3 Bi 2 phases could occur during extrusion. In addition, Mg 17 Al 12 phase can theoretically be formed below an extrusion temperature of 200 °C in as-extruded Mg-3Al-3Bi alloy, but after the material exits the extrusion die, it is quickly air-cooled to room temperature, and consequently there is not enough time for Al solute atoms to diffuse for the formation of Mg 17 Al 12 phases [ 8 ].…”

Section: Resultsmentioning

confidence: 99%

“…In Mg alloys with Bi as the main added element, Mg 3 Bi 2 phase is easy to form, guaranteeing the microstructural stability of the alloys at high temperature. As reported by Jin et al [ 8 ] and Go et al [ 9 ], Mg-5Bi-3Al (BA53, in wt%) alloy could be successfully extruded without any surface cracking at 673 K and at high die exit speeds of 21–40 m/min, but when AZ80 alloy was extruded under the same conditions, severe hot cracking occurred. This was due to the occurrence of high-melt-point Mg 3 Bi 2 phases in the BA53 alloy showing higher thermal stability than Mg 17 Al 12 phases in AZ80 alloy.…”

Section: Introductionmentioning

confidence: 87%

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Effect of Bi Addition on the Heat Resistance of As-Extruded AZ31 Magnesium Alloy

et al. 2023

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In this work, we investigate the impact of Bi addition on the heat resistance of as-extruded AZ31 alloy during high-temperature annealing and hot compression. Electron backscattered diffraction (EBSD) technique and quasi in situ scanning electron microscopy (SEM) are used to analyze the evolution of microstructures during high-temperature annealing and hot compression, respectively. The test results show that with a prolonged annealing time, the as-extruded AZB313 alloy exhibited a lower grain growth rate, due to the pinning effect of Mg3Bi2 phases distributed at grain boundaries. On the other hand, as the compressive temperature increased, the downtrend of strength is delayed in the as-extruded AZB313 alloy. Thermally stable Mg3Bi2 phases dispersed within the grains act as barriers, hindering the motion of dislocations, which not only provides a more effective precipitation strengthening effect, but also increases the resistance to deformation of grains. Moreover, grain boundary sliding can also be restricted by Mg3Bi2 phases located at grain boundaries. This work provides a new idea for the development of heat-resistant wrought Mg alloys.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 87%

Effect of Bi Addition on the Heat Resistance of As-Extruded AZ31 Magnesium Alloy

et al. 2023

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“…The strength and toughness of Azm610 are compared with other alloys in the same series. In this study, AZ31, AZ41, AZ61, AZ62, AZ80, AZ91 based on (Son et al, 2019;Liu et al, 2021;Huang et al, 2015;Bae et al, 2018;Jin et al, 2023;Yan et al, 2021) Figure 6 presents a representative comparison in this study of the tensile engineering strength and elongation between AZ61 and other Mg-Al-Zn-Mn alloy series. The AZ61 alloy in this study demonstrates superior tensile engineering strength compared to the majority of alloys within the same series, thereby achieving a notable reduction in plastic deformation loss.…”

Section: Figurementioning

confidence: 99%

Effect of Low Temperature and Low Speed Differential Temperature Extrusion on the Performance of MG-6AL-1ZN-0.15MN Alloy

Meng,

ihombing,

Qiu

et al. 2023

Smart Manufacturing and Material Processing (SMMP)

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Magnesium alloys with the hexagonal close-packed crystal structure have the low formability and weaker mechanical properties, contracted with Ti and Al alloys, which also limits the application in aerospace, aviation and automobile fields. Therefore, it is a big deal to invest the effect of low temperature and low speed differential temperature extrusion (DTE) on the microstructure and mechanical properties of mg-6al-1zn-0.15 MN (AZ61) alloy. In this work ,The AZ61 alloy was prepared by differential temperature extrusion （the ingoting temperature is 450 °C, the mould temperature is 90 °C, the extrusion ratio is 7:1）with finer recrystallized grains (DRX) ,obvious < 01-10 > texture, non-recrystallized grains with high density of dislocations. At last, this work indicates that AZ61 alloy used DTE technology to equip with bimodal grain structure, the grains in the non-recrystallization region provide high-density dislocations, and the grains in the recrystallization region provide grain boundary strengthening. Which is the origin of the mechanical properties improved greatly.

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Performance Difference Between the Spoke and Rim in an Extruded AZ80 + 0.4%Ce Magnesium Alloy Wheel under Equal Strain

Cheng

et al. 2023

J. of Materi Eng and Perform

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Comparative study of extrudability, microstructure, and mechanical properties of AZ80 and BA53 alloys

Cited by 32 publications

References 41 publications

Effect of Bi Addition on the Heat Resistance of As-Extruded AZ31 Magnesium Alloy

Effect of Bi Addition on the Heat Resistance of As-Extruded AZ31 Magnesium Alloy

Effect of Low Temperature and Low Speed Differential Temperature Extrusion on the Performance of MG-6AL-1ZN-0.15MN Alloy

Performance Difference Between the Spoke and Rim in an Extruded AZ80 + 0.4%Ce Magnesium Alloy Wheel under Equal Strain

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