Wear behavior of electroless Ni-P-W coating under lubricated condition - a Taguchi based approach

International Conference on Advances in Materials and Manufacturing Applications 2016

Mukhopadhyay, Arkadeb^1 ; Duari, Santanu^1,2 ; Barman, Tapan Kumar^1 ; Sahoo, Prasanta^1

Department of Mechanical Engineering, Jadavpur University, Kolkata

700032, India^1

Techno India College of Technology, Rajarhat, Kolkata

700156, India^2

关键词: Automotive applications;    Coating characterizations;    Confidence levels;    Electroless methods;    Electroless Ni-P;    Orthogonal array;    Tribological behaviors;    X-ray diffraction techniques;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/149/1/012004/pdf
DOI  :  10.1088/1757-899X/149/1/012004

来源: IOP

【 摘 要 】

The present study aims to investigate the tribological behavior of electroless Ni-P-W coating under engine oil lubricated condition to ascertain its suitability in automotive applications. Coating is deposited onto mild steel specimens by the electroless method. The experiments are carried out on a pin - on - disc type tribo tester under lubrication. Three tribotesting parameters namely the applied normal load, sliding speed and sliding duration are varied at their three levels and their effects on the wear depth of the deposits are studied. The experiments are carried out based on the combinations available in Taguchi's L27orthogonal array (OA). Optimization of the tribo-testing parameters is carried out using Taguchi's S/N ratio method to minimize the wear depth. Analysis of variance carried out at a confidence level of 99% indicates that the sliding speed is the most significant parameter in controlling the wear behavior of the deposits. Coating characterization is done using scanning electron microscope, energy dispersive X-ray analysis and X-ray diffraction techniques. It is seen that the wear mechanism under lubricated condition is abrasive in nature.