| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a corrosion testing method capable of reproducing a corrosion environment in a hold of a coal ship and a ship for coal/ore in a laboratory. <P>SOLUTION: The corrosion testing method of the anti-corrosion steel for the hold of the coal ship and the ship for coal/ore to test the corrosion of a steel material by using an atmosphere adjustment chamber includes: a step for preparing a sulfuric acid-added granular porous substance by adding sulfuric acid to a granular porous substance; a step for mounting the sulfuric acid-added granular porous substance on the steel material and putting the steel material in the atmosphere adjustment chamber; a step for arbitrarily selecting relative temperature in the atmosphere adjustment chamber in a range of 80 to 100% and changing heating and cooling of the temperature in a fixed cycle in a range of 20 to 80°C; and a step for measuring the corrosion quantity or hole corrosion depth of the steel material. In the step for preparing the sulfuric acid-added granular porous substance, the amount of sulfuric acid is 0.01 to 100 mg per 1 g of granular porous substance. <P>COPYRIGHT: (C)2012,JPO&INPIT |
