Study Some Parameters That Effecting On The Coating Efficiency Of Turbine Blades Produced By Thermal Spraying
Flame thermal spray technique has been used to produce a cermets composite coating based on powders of ceramic oxides ( AhOJ) reinforced by mineral powders as bonding material ( Ni - AI ) at different rates on Inconel substrates , after preparing it by grit blasting. After completing the...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Baghdad
2017-12-01
|
| Series: | Ibn Al-Haitham Journal for Pure and Applied Sciences |
| Online Access: | https://jih.uobaghdad.edu.iq/index.php/j/article/view/1670 |
| Summary: | Flame thermal spray technique has been used to produce a cermets composite coating based on powders of ceramic oxides (
AhOJ) reinforced by mineral powders as bonding material ( Ni - AI ) at different rates on Inconel substrates , after preparing it by grit blasting.
After completing the best parameters of coating such as distance of spraying , surface roughness and angle of spraying , the tests of porosity , hardness , microstructure and thermal cycling have been made.
The experimental results show that all properties of coating were effected after heat treatment. The best value of heat treatmen t is at (I 000°C) for (l.Shr) in which the results show a good interface between layers with vel)' small pores.
Also we studied the effect of thermal cycl ing at high temperature for several times to see the effect of heati ng on the top surface of layer coating.
|
|---|---|
| ISSN: | 1609-4042 2521-3407 |