Effect of Different Concentrations of Nano-Cubic Boron Nitride on the Preparation of TiO<sub>2</sub>/Ti/Fe Composite Materials by Thermal Sprayed and Micro-Arc Oxidation

In the mechanical, automobile, aerospace, and construction industries, Ti steel are mostly commercial materials be used. But poor hardness, wear, corrosion resistance limit their applications. this study, we presented a composite material that consists of thermal-sprayed titanium (Ti) layer on AISI 1020 steel. Then added different concentrations c-BN to electrolyte in MAO process enhance wear resistance. The operating parameters were set 35 A/dm2 current density, 450 V voltage 10 minutes time. concentration electrolytes 0.1 g L−1, 0.3 0.5 0.7 0.9 denoted as Ti/MAO-BN1, Ti/MAO-BN3, Ti/MAO-BN5, Ti/MAO-BN7, Ti/MAO-BN9, respectively. To determine properties coating, measurements coating thickness, surface roughness, microstructure, XRD analysis, EDS observations performed. potentiodynamic polarization test ball-on-disc used All results indicated all Ti/MAO contained (Ti/MAO-BN) have higher lower thicker coatings thickness than Ti/MAO-free (Ti/MAO-F). resistance, Ti/MAO-BN was at least about 64% better Ti/MAO-F, with Ti/MAO-BN9 being 5 times better. reduces volume 59% compared reducing by 70%.