Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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The Effect of Ball-Milling of Elemental Powders on Ni-Al Based Intermetallic Coatings using the Heat of Molten Cast Iron

주철의 용탕열을 이용한 Ni-Al계 금속간화합물의 연소합성 코팅에 미치는 Ball Milling의 영향

  • Lee, Han-Young (Keimyung University, Dept. Advanced Materials Eng.) ;
  • Cho, Yong-Jae (Keimyung University, Dept. Advanced Materials Eng.) ;
  • Kim, Tae-Jun (Keimyung University, Dept. Advanced Materials Eng.) ;
  • Bang, Hee-Jang (Korea Institute of Industrial Technology, Foundry Technology Service Center)
  • 이한영 (계명대학교 신소재공학과) ;
  • 조용재 (계명대학교 신소재공학과) ;
  • 김태준 (계명대학교 신소재공학과) ;
  • 방희장 (한국생산기술연구원 주조기술지원센터)
  • Received : 2011.07.18
  • Published : 2012.01.25
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Abstract

Ball-milled Ni-Al powder compacts have been synthesized by the heat of molten cast iron and have been coated on cast iron. The effects of the ball-milling time on the microstructure of the intermetallic coatings have been investigated. The experimental results showed that the ball-milled Ni-Al powder compacts were completely reacted and were successfully coated on the cast iron without re-melting the substrate. Densification of the coating layers was enhanced by increasing the ball-milling time. This might be attributed to the fact that the heat released during the intermetallic reaction was dispersed over a prolonged reaction time by the ball-milling of the elemental powders.

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References

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