| Title |
The Effect of Ball-Milling of Elemental Powders on Ni-Al Based Intermetallic Coatings using the Heat of Molten Cast Iron |
| Authors |
이한영(Han Young Lee); 조용재(Yong Jae Cho); 김태준(Tae Jun Kim); 방희장(Hee Jang Bang) |
| DOI |
https://doi.org/10.3365/KJMM.2012.50.1.028 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
intermetallics; coating; microstructure; ball-milling; thermal analysis |
| 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. |