| 摘要 |
PROBLEM TO BE SOLVED: To provide a gap corrosion test method, capable of reproducing gap corrosion which is generated in a natural water environment including chloride ion, and capable of evaluating corrosion resistance of a metallic material in an actual environment accurately.SOLUTION: The gap corrosion test method is configured to immerse a test piece on which a gap is formed in a solution including chloride ion, for progress of gap corrosion. After a potential of the immersed test piece is maintained to a constant value and gap corrosion is generated, the test piece and an ennoblement treatment material which is immersed in natural water in advance for potential ennoblement of the material, are subjected to short-circuit. |
