Property and formation behavior of TiAlSiWN nanocomposite coating layer by the AIP process

AIP 공정 적용 TiAlSiWN 나노 복합체 코팅층의 형성 거동 및 특성 평가

  • 이정한 (한국생산기술연구원 EV 부품소재그룹) ;
  • 박현국 (한국생산기술연구원 EV 부품소재그룹) ;
  • 장준호 (한국생산기술연구원 EV 부품소재그룹) ;
  • 홍성길 (전남대학교 신소재공학과) ;
  • 오익현 (한국생산기술연구원 EV 부품소재그룹)
  • Published : 2018.06.13

Abstract

This study formed a hard TiAlSiWN coating layer using Ti, Al, Si and W raw powders that were mechanically alloyed and refined. The TiAlSi and TiAlSiW coating targets were fabricated using a single PCAS process in a short time with the optimal sintering conditions. The coating targets were deposited on the WC substrate by forming coating layers using TiAlSiN and TiAlSiWN nitride nano-composite structures with an AIP process. The properties of the nitride nano-composite coating layers were compared according to the addition of W. The microstructure of the nitride nano-composite coating layer was analyzed, focusing on the distribution of the crystalline phases, amorphous phases ($Si_3N_4$), and growth orientation of the columnar crystal depending on the addition of W. The mechanical properties of the coating layers were exhibited a hardness of approximately $3,000kg/mm^2$ and adhesion of about 117.77N in the TiAlSiN. In particular, the TiAlSiWN showed excellent properties with a hardness of more than $4,300kg/mm^2$ and an adhesion of about 181.47N.

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