No abstract

The thermal spray coatings are commonly employed in slurry pump components and hydrodynamic turbine blades, where wear progression is an intricate phenomenon. In this research work, the performance analysis of HVOF and APS sprayed WC20Cr3C27Ni coatings for slurry erosion wear is carried out by using artificial neural networks (ANN). The influence of time, particle size, impact angle, speed, and slurry concentration on wear performance of coatings and turbine steel substrate are evaluated. Under the experimental settings, slurry erosion wear rates and mass loss for both coatings and substrate were determined. When ASTM A743 steel was coated with thermal sprayed WC20Cr3C27Ni coatings, the slurry erosion wear resistance of the steel was enhanced by 2 and 3.5 times for APS and HVOF coatings, respectively. The design of ANN made it possible to examine the interactions between the seven input variables. A robust model was formed by the two outputs that followed. This model enables the prediction of slurry erosion wear rate and mass loss of WC20Cr3C27Ni coatings and substrate.

In this study, an assembly fixture called a "Yoke" that is used to assemble different engine types is analyzed. The new engine has some unique parts which cannot be accommodated on the yoke during the assembly. The fouling part is the outlet water pipe which fouls one of the supporting blocks during the assembly. Therefore, the aim of the present work is to effectively accommodate the fouling parts without much modifying the components by using ANSYS. In order to adapt the changing design of new engines inexpensively, this fixture has to be analyzed to identify regions where stress is concentrated. With the aid of the simulation programme ANSYS, this study successfully illustrates the integration of the finite element methods to solve complicated issues quickly. These calculations are exceedingly time-consuming to complete manually, thus simulation software like ANSYS is utilized to complete them more quickly and correctly. The results have been validated by using its mathematical model. The most secure and cost-effective modification for the yoke would be found after thorough investigation in order to successfully accommodate the fouling or clashing elements during installation.