Parametric Optimization of Residual Stress of TiO2 Composite Coating

The primary objective was to develop a composite coating by utilizing the HVOF thermal spray technique and including TiO2. The substrate was covered with a high-quality composite layer utilizing the HVOF coating process. The TiO2-based powder and carbon powder were initially combined in the mixer for deposition. The composite powders were applied via an HVOF torch, namely the PT F4 model. Firearms frequently produce a high-speed flow of extremely hot air. The Hybrid composite coating has a thickness ranging from 350 to 450 mu m. The ultimate aim was to improve residual stresses by applying the Taguchi strategy. An ANOVA analysis was employed to assess the statistical significance of the process components in the composite coating based on TiO2. According to the experimental results, temperature has the highest percentage influence (64.19%) on the change in residual stress, trailed by (21.82%) frequency and (6.31%) load. The expected optimal range is CICE: 7.28 < mu < 13.8 while the expected mean range for CIPOP: 7.24 < mu < 12.24. Three confirmation tests were undertaken to compute and predict the optimal scenario. The process parameters are established as follows: test 3 of frequency (A3) is configured at 27 Hz, test 3 of temperature ( B3) is configured at 375oC, and test 1 of load (C1) is configured at 20N.