CORROSION RESISTANCE EVALUATION METHOD OF STEEL PLATE, SELECTION METHOD OF CORROSION RESISTANT ELEMENT, AND CORROSION RESISTANT STEEL PLATE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a corrosion resistance evaluation method of a steel plate capable of easily evaluating the corrosion resistance of the steel plate in an electrolyte solution immersion environment in a short period, provide a selection method of a corrosion resistant element, and provide a corrosion resistant steel plate.;SOLUTION: Iron rust made of one or more of α-FeOOH, β-FeOOH, and γ-FeOOH is brought into contact with a steel plate. Then, a cycle consisting of a drying process and wetting process set by varying the temperature and relative humidity is applied, over one or more times, to the steel plate and the iron rust in a contact state with an electrolyte or a material simulating the electrolyte. Then, the corrosion resistance of the steel plate is evaluated on the basis of the degree of the reduction of the iron rust.;COPYRIGHT: (C)2015,JPO&INPIT