Influence Percentage of Additive Materials on the Structural and Physical Characteristics of Nickel Metal Using Thermal Spraying by Flame

The method of thermal spraying with flame, which was used to conduct a coating consisting of a nickel base and additions of three groups—(C=Ni-WC-B4C), (B=Ni-B4C), and (A=Ni-WC)—and with different reinforcement ratios from these groups, forms the basis of cermet coating. The bases for thermal spraying were made by roughing up and cutting out-of-service turbine blades that were 1 cm square in shape. The spray angle 90°, spray distance of 15 cm, thermal sintering temperature of 1050°C, and mixing ratio of type (C=50%Ni-25%WC-25%B4C) of the three mixes were at their ideal standard conditions. The results of the scanning electron microscope showed nearly good mechanical homogeneity and crosslinking at the same percentage above, especially after the thermal sintering process. It was discovered that the hardness is (240 Hv), the adhesion strength is (39 MPa), and the best coating thickness at each of the hardness and adhesion strength is (1.5 mm). The (C) mixture, which had superior structural, physical, and mechanical capabilities compared to the (B) and (A) combinations, was also reported to have produced the best outcomes.