Effects of Yttrium on the Microstructure and Corrosion Behavior of Pb-39Mg-10Al-1B-Y Alloys

Feng, Zhiqi; Bao, Weizong; Bao, Longke; Peng, Mingjun; Duan, Yonghua

doi:10.1007/s11665-020-05317-4

Cited by 9 publications

(1 citation statement)

References 44 publications

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“…Table 3 shows that the sintered alloy exhibit the highest J corr (773.3 μA cm −2 ) among the Mg-Al-Pb alloys. It is believed to be caused by the excessive intermetallic phases that acted as the cathode during the micro-galvanic corrosion [23][24][25][26]. Compared with sintered alloy, extruded alloy with more intermetallic phases showed more negative E corr .…”

Section: Potentiodynamic Polarization Test and Hydrogen Evolution Cor...mentioning

confidence: 99%

Effects of intermetallic phases on electrochemical properties of powder metallurgy Mg-6%Al-5%Pb anode alloy used for seawater activated battery

Huang¹,

Liu²,

Fang³

et al. 2022

Mater. Res. Express

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The changes in intermetallic phases of Mg-6%Al-5%Pb (Mg-Al-Pb) alloy prepared by powder metallurgy and their effects on electrochemical properties were studied. Experimental results showed that coarse Mg 17 Al 12 phases (with size ranges from 20 μm to 70 μm) and fine Mg 2 Pb phases (with the size of 100 nm scale) formed in the mixed Al、Pb and Mg powder during the hot press sintering procedure. Fine Mg 2 Pb phases exhibit strong diffusional ability to diffuse into Mg 17 Al 12 phases. Extruding further promotes the diffusion of Mg 2 Pb phases into Mg 17 Al 12 phases. Solution treatment produced a mixed microstructure which is Mg 17 Al 12 phase containing Mg 2 Pb phases inside and made other Mg 2 Pb phases homogeneously distributed in Mg matrix. Mg 17 Al 12 phases and the gathered Mg 2 Pb phases will accumulate the Mg(OH) 2 corrosion products, which impedes the subsequent discharge behavior. Homogeneously distributed Mg 2 Pb phases will fall off during discharge, which makes the discharge curve more stable. The mixed microstructure has positive effect on corrosion resistance and discharge potential. Therefore, solution-treated alloy shows the highest negative potential and the smoothest curve during the galvanostatic discharge test. Compared with the commercial AZ61 sheet, solution-treated alloy exhibit much higher anode properties in Mg/PbCl2 battery test. Thus, the solution-treated alloy could serve as an excellent anode in seawater-activated batteries.

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Section: Potentiodynamic Polarization Test and Hydrogen Evolution Cor...mentioning

confidence: 99%

Effects of intermetallic phases on electrochemical properties of powder metallurgy Mg-6%Al-5%Pb anode alloy used for seawater activated battery

Huang¹,

Liu²,

Fang³

et al. 2022

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

Experimental investigation of minor Si addition on AlNiYCo multi-principal element alloy: Microstructural characterization, thermal stability and corrosion resistance

Zhang

Zhang²,

Chen

et al. 2022

Intermetallics

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Effects of rare-earth element Y content on the microstructure and properties of quinary Al–Ni–Zr–Co–Y high entropy metallic glasses

Zhang,

Jing

et al. 2024

Intermetallics

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Effects of Yttrium on the Microstructure and Corrosion Behavior of Pb-39Mg-10Al-1B-Y Alloys

Cited by 9 publications

References 44 publications

Effects of intermetallic phases on electrochemical properties of powder metallurgy Mg-6%Al-5%Pb anode alloy used for seawater activated battery

Effects of intermetallic phases on electrochemical properties of powder metallurgy Mg-6%Al-5%Pb anode alloy used for seawater activated battery

Experimental investigation of minor Si addition on AlNiYCo multi-principal element alloy: Microstructural characterization, thermal stability and corrosion resistance

Effects of rare-earth element Y content on the microstructure and properties of quinary Al–Ni–Zr–Co–Y high entropy metallic glasses

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