Effect of Rolling Technology on the Microstructure and Properties of High Active Aluminum Alloy Anode
The effect of rolling technology on the microstructure, electrochemical property and anti-corrosion property of Al-Mg-Sn-Bi-Ga-In alloy anode in alkaline solution (80°C, Na2SnO3 + 5mol/L NaOH) has been analyzed according to the chronopotentiometry (E-T curves), hydrogen collection tests and modern microstructure analysis. The results show that when controlling the pass deformation at 40%, with the increase of rolling temperature, both electrochemical activity and anti-corrosion property of Al anode increase first and then decrease. When the rolling temperature is 420°C, the aluminum alloy anode has the most negative electrode potential of about -1.521V (vs.Hg/HgO) and the lowest hydrogen evolution rate of 0.1716mL/ (min•cm2). The optimum comprehensive performance of Al alloy anode has been obtained.
Yansheng Yin and Xin Wang
S. Q. Liang et al., "Effect of Rolling Technology on the Microstructure and Properties of High Active Aluminum Alloy Anode", Advanced Materials Research, Vols. 79-82, pp. 167-170, 2009