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本文研究α—Ti在腐蚀过程中钝化膜所产生的内应力的大小。结果表明，一边涂有保护层的α－Ti薄条在0.1mol／LH2SO4溶液中自然腐蚀过程中，随着钝化膜的形成，薄条不断向腐蚀面弯曲（保护面鼓起），即在试样表层产生一个拉应力。这个附加拉应力不断增大，其最大值为（5个试样平均），接近或等于屈服应力。在SCC过程中这个附加应力将和外应力叠加，促进位错发射和运动，从而在低应力（或低KI）下导致SCC裂纹形核。
In this paper, α-Ti in the corrosion process passivation film generated by the size of the internal stress. The results show that during the natural corrosion ofα-Ti coated protective layer in 0.1mol / LH 2 SO 4 solution, the thinner strip continuously bends to the corrosion surface The sample surface produces a tensile stress. This additional tensile stress is continually increasing, with a maximum of (5 samples average) close to or equal to the yield stress. During SCC this additional stress will be superimposed on the external stress, promoting dislocation emission and motion, resulting in SCC crack nucleation at low stress (or low KI).