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4 3种钛合金试样在5 mol/L盐酸溶液中的阻抗拟合结果

Table 4 Fitting results of EIS of Ti6321 alloy samples with three different structures in 5 mol/L HCl solution

Structure Rs / Ω·cm2 Qdl / Ω-1·cm-2·Sn n1 Rct / Ω·cm2 Qf / Ω-1·cm-2·Sn n2 Rf / Ω·cm2 Double 4.7 0.00028 0.90 462.5 0.03363 0.85 509.6 Equiaxed 4.6 0.00033 0.88 317.5 0.03968 0.83 329.7 Widmanstatten 6.6 0.00030 0.89 290.1 0.04318 0.87 235.6