| Title |
Modeling of Formation of Deposited layer by Plasma Spray Process |
| Authors |
이주동(Joo Dong Lee); 나형용(Hyung Yong Ra); 홍경태(kyung Tae Hong); 허성강(Sung Kang Hur) |
| Abstract |
An analytical model is developed to describe the plasma deposition process in which average solidified thickness and coating and substrate temperatures are obtained. During deposition process solidification rate is periodically varied due to the impingement of liquid splats and the amount of liquid in the coating layer increases. Periodical variation of the solidification rate causes temperature fluctuation in coating and substrate. The nature of interfacial structure of plasma-sprayed NiCrBSi MA powder is compared with the result predicted using our model, which indicates that the liquid, which residue at the coating surface during deposition, causes discontinuous boundaries within the coating. And spraying rate and solidification rate are reverse periodically with spraying process. |