热处理工艺对Ti6321合金腐蚀行为的影响

张佳欢, 崔中雨, 范林, 孙明先

Effect of Heat Treatment Process on Corrosion Resistance of Ti6321 Alloy

ZHANG Jiahuan, CUI Zhongyu, FAN Lin, SUN Mingxian

表2 3种钛合金试样在5 mol/L盐酸溶液中的极化曲线的Tafel拟合结果

Table 2 Tafel fitting results of polarization curves of Ti6321 alloy samples with three different structures in 5 mol/L HCl solution

Structure Ecorr / VSCE Ip / A·cm-2 Epit / VSCE Epp-Epit / VSCE Icorr / A·cm-2 Double -0.59 1.35×10-5 --- -0.14-1.44 1.35×10-7 Equiaxed -0.62 1.71×10-5 --- 0.15-1.37 1.29×10-6 Widmanstatten -0.65 1.74×10-4 0.95 0.18-0.88 2.68×10-6