Aging behavior of AZ91 matrix influenced by 5 μm SiCp: Investigation on the microstructure and mechanical properties

Sun, Xiaobo; Wang, Cuiju; Deng, Kun-kun; Kang, Jin-wen; Yan, Biao; Nie, Kai-bo; Shang, Shuan-jun

doi:10.1016/j.jallcom.2017.08.198

Cited by 32 publications

(20 citation statements)

References 41 publications

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“…The observed deformation mismatch between the second phase and the easily deformable magnesium matrix leads to an increase in the strain gradient around the precipitated phase in the extrusion deformation. There it will form the high‐density dislocation region to promote recrystallization nucleation . Furthermore, the precipitated Mg 17 Al 12 phase can effectively pin the grain boundaries and achieve the purpose of promoting the dynamic recrystallization nucleation of the matrix to refine the grains of the alloy …”

Section: Resultsmentioning

confidence: 99%

Synergistic Effect of Second Phase and Grain Size on Electrochemical Discharge Performance of Extruded Mg–9Al–xIn Alloys as Anodes for Mg–Air Battery

Wang

et al. 2020

Adv Eng Mater

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The extruded Mg–9Al–xIn alloys are systematically studied as the potential anode material for primary Mg–air batteries. In this study, the effect of grain size and second phase particles on electrochemical behavior and discharge performance of Mg–Al–In alloys with In content ranging from 0 to 1.0 wt% is investigated through microstructure characterization, electrochemical measurements, and half‐cell discharge tests. The results of this study indicate that the grain size of the alloy is remarkably refined to a range between 7.60 and 2.23 μm, and the distribution of the β‐Mg17Al12 phase can be effectively modified after the In element is added to the extruded Mg–9Al alloy. In addition, as the content of the In element increases, the area fraction of the second phase decreases while the size increases. The Mg–9Al–0.5In alloy is shown to have the highest discharge potential (−1.63 V) and the most negative corrosion potential (−1.51 V) among the studied alloys. In addition, the anode efficiency and power density of the Mg–9Al–0.5In alloy reaches 78.2% and 76.8 mW cm−2, respectively. The excellent discharge performance of the alloy is attributed to fine grain size, large area fraction, and dispersed micron‐sized precipitates and loose corrosion products. Consequently, these results reveal that Mg–9Al–0.5In alloy can serve as a promising anode material for Mg–air batteries.

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Section: Resultsmentioning

confidence: 99%

Synergistic Effect of Second Phase and Grain Size on Electrochemical Discharge Performance of Extruded Mg–9Al–xIn Alloys as Anodes for Mg–Air Battery

Wang

et al. 2020

Adv Eng Mater

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“…[89], the size of PDZ around harden particles is approximately 1.5-1.8 times of the particle size. Figure 2 [92] shows the schematic of PDZ. Due to the high storage energy in PDZ, the nucleation of recrystallization can be promoted and this phenomenon was called as particle stimulated nucleation (PSN) mechanism [90,91].…”

Section: Drx Behavior Of Pmmcsmentioning

confidence: 99%

“…2 Schematic of particle deformation zone (PDZ). Reproduced from [92], with permission from Elsevier through PSN, which was also beneficial to adjusting the texture of material [91].…”

Section: Drx Behavior Of Pmmcsmentioning

confidence: 99%

“…In recent years, related research on the recrystallized texture of PMMCs has also been carried out. Robson et al [92] studied the Mg-Mn alloy containing micron particles and found that recrystallization mainly occurred inside the grains and PSN had a little effect on the recrystallized texture. Based on the research of the as-forged Mg alloys [105], the occurrence of PSN could weaken texture but not change the type of texture.…”

Section: Recrystallized Texture Of Pmmcsmentioning

confidence: 99%

“…Pole figures of the a AZ91 alloy, b 0.2 μm5%, c 10 μm5% SiCp/AZ91 composites after hot deformation. Reproduced from[92], with permission from Elsevier among DRX, dynamic precipitation and PDZ in PMMCs still needs further investigation.…”

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confidence: 99%

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Recent Research on the Deformation Behavior of Particle Reinforced Magnesium Matrix Composite: A Review

Deng

Wang

Nie

et al. 2019

Acta Metall. Sin. (Engl. Lett.)

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Particle reinforced magnesium matrix composite (PMMC) possesses the merits of high specific strength, high specific modulus, better dimensional stability, good wear resistance and lower production cost, which is thought as a promising material in the field of aerospace, automobile, electronic communication, etc. To eliminate the casting defect, the PMMC is usually experienced hot deformation process. The present paper mainly focuses on the deformation behavior of PMMCs. First, the development of PMMCs based on particle size is introduced. Then, the hot deformation technology and deformation mechanism of PMMCs at elevated temperature are given and analyzed, respectively. After reviewing the dynamic recrystallization and texture of PMMCs, its future development is suggested based on the current research progress.

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Fabrication and Characterization of Composites

Cuevas

Becerril

Martínez

et al. 2018

Metal Matrix Composites

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Aging behavior of AZ91 matrix influenced by 5 μm SiCp: Investigation on the microstructure and mechanical properties

Cited by 32 publications

References 41 publications

Synergistic Effect of Second Phase and Grain Size on Electrochemical Discharge Performance of Extruded Mg–9Al–xIn Alloys as Anodes for Mg–Air Battery

Synergistic Effect of Second Phase and Grain Size on Electrochemical Discharge Performance of Extruded Mg–9Al–xIn Alloys as Anodes for Mg–Air Battery

Recent Research on the Deformation Behavior of Particle Reinforced Magnesium Matrix Composite: A Review

Fabrication and Characterization of Composites

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