| 摘要 |
PROBLEM TO BE SOLVED: To provide a determination method for the quantity of an alloy phase in a plated layer in plated covering metal materials, such as alloying melted zinc-plated steel plate for directly and accurately determining the quantity of the alloy phase in a plated layer. SOLUTION: In the method for determining the quantity of the alloy phase in the plated layer, a plated film metal material, having a plurality of types of alloy phases in a plated layer, is set to be the anode, the alloy phase in the plated layer is subjected to constant potential electrolysis in each of a plurality of potentials that are determined based on the dipping potential of a ground metal material and that of each alloy phase, and the quantity of each alloy phase in the plated layer is determined for each layer based on the amount of electricity that has flown in each electrolysis potential. |
