Karuna Tuchinda and Sasithon Bland
Computational Study and Wear Prediction of Steam Turbine Blade with TitaniumNitride Coating Deposited by Physical Vapor Deposition Method
1242 - 1246
2014
8
7
International Journal of Mechanical and Mechatronics Engineering
https://publications.waset.org/pdf/9998773
https://publications.waset.org/vol/91
World Academy of Science, Engineering and Technology
This work investigates the wear of a steam turbine blade coated with titanium nitride (TiN), and compares to the wear of uncoated blades. The coating is deposited on by physical vapor deposition (PVD) method. The working conditions of the blade were simulated and surface temperature and pressure values as well as flow velocity and flow direction were obtained. This data was used in the finite element wear model developed here in order to predict the wear of the blade. The wear mechanisms considered are erosive wear due to particle impingement and fluid jet, and fatigue wear due to repeated impingement of particles and fluid jet. Results show that the life of the TiNcoated blade is approximately 1.76 times longer than the life of the uncoated one.
Open Science Index 91, 2014