0Cr18Ni9奥氏体不锈钢在低浓度氯化钠溶液中的裸金属钝化特性

PASSIVATION BEHAVIOR OF 0Cr18Ni9 AUSTENTIC STAINLESS STEEL IN LOW CONCENTRATION SOLUTION

设计了研究０Ｃｒ１８Ｎｉ９奥氏体不锈钢裸金属钝化率的试验。分析其钝化曲线，指出０Ｃｒ１８Ｎｉ９奥氏体不锈钢在１０００ｍｇ／ＬＮａＣｌ溶液中的钝化曲线满足ｉ（ｔ）＝ｉ０ｅ－β·ｔ关系。

An experiment of researching the bare metal passivation rate of 0Cr18Ni9 austentic stainless steel was designed. After analyzing its passivation curve, it was pointed out that the passivation curve of 0Cr18Ni9 austentic stainless steel fits the relation. At the same time, the phenomenon that the corrosion fatigue crack growth curves da/dNk overlapped under low frequency was interpreted by quoting the conception time.