Corrosion rates of strained grade UNS S32202 (2202) and UNS S32205 (2205) duplex stainless steel wires have been measured, in situ, using time-lapse X-ray computed tomography. Exposures to chloride-containing (MgCl₂) atmospheric environments at 50 °C (12–15 M Cl⁻ and pH ~5) with different mechanical elastic and elastic/plastic loads were carried out over a period of 21 months. The corrosion rates for grade 2202 increased over time, showing selective dissolution with shallow corrosion sites, coalescing along the surface of the wire. Corrosion rates of grade 2205 decreased over time, showing both selective and pitting corrosion with more localised attack, growing preferentially in depth. The nucleation of stress corrosion cracking was observed in both wires.

已使用延时X射线计算机断层扫描在现场测量了应变等级的UNS S32202（2202）和UNS S32205（2205）双相不锈钢线的腐蚀速率。暴露于含有氯化物的氯化镁（MgCl ₂）大气环境中在50℃（12-15中号氯^-和pH〜5）具有不同的机械弹性和弹性/塑性载荷经一段21个月进行。2202级的腐蚀速率随着时间的推移而增加，显示出具有浅腐蚀点的选择性溶解，并沿焊丝表面聚结。2205级的腐蚀速率随时间降低，显示出选择性腐蚀和点蚀，局部腐蚀更严重，深度优先增长。在两根导线中均观察到应力腐蚀开裂的形核。