Mn2+ 对304L和C25不锈钢在高温硝酸中腐蚀行为的协同作用机制与响应曲面模型研究

孙欣, 屈佳伟, 高子淋, 郑越, 马爱利, 姚琳, 张连民, 郑玉贵

Mechanism and Response Surface Model for Effect of Mn2+ on 304L and C25 Stainless Steels in High-temperature Nitric Acid

SUN Xin, QU Jiawei, GAO Zilin, ZHENG Yue, MA Aili, YAO Lin, ZHANG Lianmin, ZHENG Yugui

表1 C25和304L不锈钢的化学成分 (mass fraction / %)

Table 1 Chemical composition of C25 and 304L stainless steels

Samples Fe Cr Ni Si Mo Mn C P S 304L Bal. 18.16 8.04 0.39 - 1.56 0.018 0.027 0.002 C25 Bal. 24.80 21.54 < 0.05 0.031 0.34 < 0.005 < 0.005 < 0.005