45CrNiMoV低合金高强钢在氯化物溶液中闭塞区化学状态的研究

INVESTIGATION OF CHEMICAL STATES WITHIN OCCLUDED CELL FOR 45CrNiMoV HIGH STRENGTH STEEL IN CHLORIDE SOLUTION

采用模拟闭塞电池研究４５ＣｒＮｉＭｏＶ低合金高强钢在ＮａＣｌ溶液中闭塞区内化学状态的变化．

The changes within occluded cell for 45CrNiMoV high strength steel in NaCl solu-tion were studied with a simulated occluded cell.As anodic currents passed the cell a series of changes took place,the most important changes were pH fall and Cl-migration. It was found that the pH fall was proportional to current density and the time of current flowing. Consequently,pH fall was a function of the quantity of passing electricity.The Cl-migration versus unit anode area was proportional to the time of current passing.