NaCl溶液温度和含量对热处理后钢轨腐蚀行为的影响

李自立, 王欣纪, 田春洋, 叶沛聪, 刘海乔, 何成刚, 刘吉华

Influence of NaCl Temperature and Content on Corrosion Behavior of Heat Treated Rail Steel

LI Zili, WANG Xinji, TIAN Chunyang, YE Peicong, LIU Haiqiao, HE Chenggang, LIU Jihua

表2 不同NaCl溶液温度与含量下热处理U75V钢轨试样全浸腐蚀后的自腐蚀电流密度(Icorr) (A·cm-2)

Table 2 Free-corrosion current density (Icorr) of heat-treated U75V steel rail samples after fully immersion corrosion in NaCl solution under different temperatures and contents

Time / h 5.0%-25 ℃ 5.0%-35 ℃ 5.0%-45 ℃ 2.0%-25 ℃ 3.5%-25 ℃ 48 1.995 × 10-5 2.463 × 10-5 2.647 × 10-5 2.321 × 10-5 1.778 × 10-5 96 3.239 × 10-5 3.905 × 10-5 4.244 × 10-5 2.846 × 10-5 3.606 × 10-5 144 2.631 × 10-5 3.413 × 10-5 3.729 × 10-5 2.461 × 10-5 3.373 × 10-5