CORROSION RESISTANT PAINT AND CORROSION RESISTANT STEEL MATERIAL COATED WITH SAME

摘要

PROBLEM TO BE SOLVED: To clarify the relationship between a metal structure of a Zn-Mg alloy and corrosion resistance and to provide a paint which exert excellent corrosion resistance and rust-proofness and a corrosion resistant steel material. SOLUTION: This corrosion resistant paint is obtained by mixing a metal powder which has an Mg content of 0.3-6 wt.% and the balance containing mainly Zn with a binder, and the metal powder contains three types of structures, i.e., Zn phase, Zn-Mg alloy phase and a solid solution phase of Zn and Mg as main components and these are each mixed in the paint as a powder particle. A corrosion resistant steel material is obtained by coating with this paint.