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Effect of nano-segregation phases on electrochemical property of high active Al alloy anode

机译:纳米偏析相对高活性铝合金阳极电化学性能的影响

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The effect of nano-segregation phases formed during rolling process on the electrochemical property of Al-Mg-Sn-Bi-Ga-In alloy anode in alkaline solution (80℃, Na2SnO3+5mol/L NaOH) was analyzed according to the chronopotentiometry (E-T curves) , hydrogen collection tests and modern microstructure analysis. The results show that when controlling the rolling temperature and pass deformation at 370℃ and 40% respectively, the Al alloy anode undergoes the dynamic recrystallization, which benefits to the uniform distribution of nano-segregation phases and improvement of electrochemical property of Al alloy anode. The optimum Al alloy anode has the more negative electrode potential of about -1.48V (vs.Hg/HgO) and the lower hydrogen evolution rate of 0.1889mL/(min·cm2).
机译:根据计时电位法分析了轧制过程中形成的纳米偏析相对碱性溶液(80℃,Na2SnO3 + 5mol / L NaOH)中Al-Mg-Sn-Bi-Ga-In合金阳极电化学性能的影响( ET曲线),氢收集测试和现代微观结构分析。结果表明,当分别控制轧制温度和370℃及40%的通过变形时,铝合金阳极动态再结晶,有利于纳米偏析相的均匀分布和改善铝合金阳极的电化学性能。最佳的铝合金阳极负极电位约为-1.48V(vs.Hg / HgO),氢气析出速率较低,为0.1889mL /(min·cm2)。

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