【摘要】 <正> 低合金钢是海洋用钢的主要材料之一。它在海水中,由于表面局部物理化学条件的差异而构成局部腐蚀电池。局部腐蚀严重程度取决于局部腐蚀发生后蚀坑深入发展的速度。更多还原

【Abstract】 The changes of composition (H+ and Cl) of anodic solution within a pit and their influence on the development of pitting of low alloy steel in the process of the oxygen concentration cell have been studied. The diagram of developmental mechanism for pitting was plotted. The pitting developmental mechanism and the control factors of low alloy steel in sea water were ellucidated. It was shown that the corrosion current of oxygen concentration cell was an important control factor for pitting of carbon steel and low alloy steel in sea water.更多还原