Cl-与HSO3-对建筑用439不锈钢腐蚀行为的影响

Cl^-与HSO₃^-对建筑用439不锈钢腐蚀行为的影响

陈昊, 樊志彬, 陈志坚, 周学杰, 郑鹏华, 吴军

Effect of Cl^- and HSO₃^- on Corrosion Behavior of 439 Stainless Steel Used in Construction

CHEN Hao, FAN Zhibin, CHEN Zhijian, ZHOU Xuejie, ZHENG Penghua, WU Jun

表4 腐蚀离子与金属氧化物表面相互作用能

Table 4 Surface interaction energies of corrosion ions and metal oxides (kcal·mol^-1)

Phase	0.62 mol/L NaCl	0.62 mol/L NaHSO₃	(0.31+0.31) mol/L (NaCl+NaHSO₃)
Phase	Cl^-	HSO₃^-	(Cl^-, HSO₃^-)
Fe₂O₃	-1323.182226	-24.479770	-1432.066031
Cr₂O₃	-8789.661657	-89.576001	-7837.384689
FeO	-2582.008070	-3877.935214	-11311.721163