TC4钛合金在O2 + CO2 气氛的高温高压模拟水沉积液中表面形成的钝化膜研究

张雅妮, 王思敏, 樊冰

Corrosion and Passivation Behavior of TC4 Ti-alloy in a Simulated Downhole Liquid in High-temperature and High-pressed O2 + CO2 Environment

ZHANG Yani, WANG Simin, FAN Bing

表2 TC4钛合金在3种气氛环境下的腐蚀速率

Table 2 Corrosion rates of TC4 Ti-alloy in three mixed gas conditions

No. S / cm2 t / h ∆M / g Vcorr / mm‧a-1 V¯corr / mm‧a-1 A1 13.3143 24 0.0001 0.0061 0.0061 A2 13.3155 24 0.0001 0.0061 A3 13.1520 24 0.0001 0.0062 B1 13.2453 24 0.0001 0.0061 0.0061 B2 13.1883 24 0.0001 0.0061 B3 13.4093 24 0.0001 0.0060 C1 13.5079 72 0.0001 0.0020 0.0027 C2 13.4029 72 0.0002 0.0040 C3 13.5868 72 0.0001 0.0020