| abstract |
This invention relates to a coating layer structure of a basic material of a mold, which exhibits good adhesion between a coating material and a basic material and does not cause cracking when coated. Such a coating layer structure includes an ion nitriding layer formed at the surface of the basic material, a middle coating layer formed on the ion nitriding layer using AlTiCrN, AlCrSiN, AlTiSiN, or AlTiCrSiN, and a surface coating layer formed on the middle coating layer using AlTiCrCN, AlCrSiCN, AlTiSiCN, or AlTiCrSiCN. |