2304双相不锈钢钢筋在混凝土孔隙模拟液中的电化学腐蚀行为研究

刘国强, 张东方, 陈昊翔, 范志宏, 熊建波, 吴清发

Electrochemical Corrosion Behavior of 2304 Duplex Stainless Steel in a Simulated Pore Solution in Reinforced Concrete Serving in Marine Environment

LIU Guoqiang, ZHANG Dongfang, CHEN Haoxiang, FAN Zhihong, XIONG Jianbo, WU Qingfa

表3 3种钢筋在含4.5 mol/L NaCl的混凝土孔隙模拟液中表面钝化膜的载流子密度

Table 3 Carrier density of surface passivation film of three types of steel bars in concrete pore simulant with 4.5 mol/L NaCl

Rebar ND1 NA1 ND2 NA2 HRB400 8.41 × 1021 8.98 × 1021 5.24 × 1021 9.72 × 1021 304 stainless steel 3.15 × 1021 2.94 × 1021 - 3.07 × 1021 2304 duplex stainless steel 2.45 × 1021 8.62 × 1020 3.08 × 1021 2.07 × 1021