발간논문

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Vol.50, No.1, 28 ~ 34, 2012
Title
The Effect of Ball-Milling of Elemental Powders on Ni-Al Based Intermetallic Coatings using the Heat of Molten Cast Iron
이한영 Han Young Lee , 조용재 Yong Jae Cho , 김태준 Tae Jun Kim , 방희장 Hee Jang Bang
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.
Key Words
intermetallics, coating, microstructure, ball-milling, thermal analysis
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