Evaluating the Mechanical and Tribological Properties of DLC Nanocoated Aluminium 5051 Using RF Sputtering

Abstract

The diamond-like carbon- (DLC-) coating technique is used in the sliding parts of automotive engines, among other applications, to reduce friction and wear. In this work, DLC has been coated on the Aluminium 5051 sample to assess the mechanical and tribological properties. A sputtering deposition mechanism is used, and the DLC is coated using a graphite target. The developed DLC coatings are tested for adhesion strength, hardness, chemical composition using XRD, and wear behaviour. The developed DLC thin films have considerably increased the wear behaviour of the Aluminium 5051 sample and have fulfilled the objective of this study. The XRD data indicated the presence of amorphous carbon in the coating with a threefold increase to the hardness of the naked aluminium. This study provides insight into improving the aluminium wear resistance by developing a considerably hard coating.

Investigation of Tribological Behaviour on DLC Coatings for AA5051 using DC Sputtering

“…There are four diffraction peaks in the spectra at 2Ɵ values, as shown in the diagram. The peaks at 2 26.66° and 51.9° correspond to the reflection form (002) and (102) planes of graphite, respectively, and the peaks at 2Ɵ values of 43.52° and 73.94° correspond to the (111) and (220) lattice spacing of cubic diamond, respectively [36]. Tuning the surface chemistry and passivating unsaturated dangling bonds to avoid adhesive covalent interaction between mating parts and further reducing friction and wear are of scientific importance.…”

“…The sample is stored in an XRD machine and swept from 200 to 900 degrees for analysis. Other than carbon, there are 220) lattice spacing of cubic diamond, respectively [36]. Tuning the surface chemistry and passivating unsaturated dangling bonds to avoid adhesive covalent interaction between mating parts and further reducing friction and wear are of scientific importance.…”

Artificial Intelligence Optimization of Turning Parameters of Nanoparticle-Reinforced P/M Alloy Tool

“…Parent material properties were much lesser than the composite-based alloy when the reinforcing was successfully blended together. Also, this reinforcement was added benefit into the mechanical properties if it supports with greatest chemical resistance, is highly potential, and reaches the maximum boiling point and light density [9,10]. The boron carbide with various aluminium matrix composites was prepared and analyzed by the various researchers.…”