한국표면공학회지 (54권5호 285-293)
Characteristics of TiAlCrSiN coating to improve mold life for high temperature liquid molding
고온 액상 성형용 금형 수명 향상을 위한 TiAlCrSiN 코팅의 특성
여기호a, 박은수b, 이한찬b,*
Ki-Ho Yeoa, Eun-Soo Parkb, Han-Chan Leeb,*
a한양대학교 금속재료공학과, b(주)이엠엘 R&D 센터
aDepartment of Metallurgical and Materials Engineering, Hanyang University, 15588, Republic of Korea bR&D Center, Eloi MaterialL(EML), Suwon 16229, Republic of Korea
High-entropy TiAlCrSiN nano-composite coating was designed to improve mold life for high temperature liquid molding. Alloy design, powder fabrication and single alloying target fabrication for the high-entropy nano-composite coating were carried out. Using the single alloying target, an arc ion plating method was applied to prepare a TiAlCrSiN nano-composite coating had a 30 nm TiAlCrSiN layers are deposited layer by layer, and form about 4 µm-thickness of multi-layered coating. TiAlCrSiN nano-composite coating had a high hardness of about 39.9 GPa and a low coefficient of friction of less than about 0.47 in a dry environment. In addition, there was no change in the structure of the coating after the dissolution loss test in the molten metal at a temperature of about 1100 degrees.
TiAlCrSiN nano-composite coating, HEA, Single alloying target, High Temperature Liquid Casting Mold
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