含Ce S31254超级奥氏体不锈钢析出相析出行为及耐蚀性

张小丽, 寻懋年, 梁小红, 张彩丽, 韩培德

Precipitation of Second Phase and Its Effect on Corrosion Resistance of Ce-containing S31254 Super Austenitic Stainless Steel

ZHANG Xiaoli, XUN Maonian, LIANG Xiaohong, ZHANG Caili, HAN Peide

表1 S31254-Ce不锈钢经固溶及不同时效温度处理90 min后动电位极化相关参数

Table 1 Electrochemical parameters of potentiodynamic polarization for S31254-Ce stainless steel solution treated and aged at different aging temperatures for 90 min

Temperature / ℃	I_corr / 10⁷ A·cm^-2	E_corr / V	I_p / 10⁵ A·cm^-2	E_pit / V
Solution treatment	2.11±0.055	-0.148	6.22	1.137
800	2.14±0.036	-0.149	6.31	1.104
820	3.25±0.083	-0.182	8.44	1.097
840	5.06±0.074	-0.249	14.37	1.059
860	9.39±0.078	-0.373	27.54	1.038
880	12.42±0.063	-0.463	35.55	1.021
900	13.18±0.083	-0.534	52.14	1.011