Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Tribological characteristics of electroless Ni–B coating and optimization of coating parameters using Taguchi based grey relational analysis
Research highlights ► Friction and wear of electroless Ni-B coatings are optimized by Taguchi approach. ► Concentration of reducing agent has the maximum contribution on friction and wear. ► Interaction of bath temperature and nickel concentration has some contribution. ► The wear mechanism is found to be abrasive in nature.
Abstract Electroless nickel coating is an autocatalytic coating whose characteristics are very much dependent on the composition of electroless bath. The present study is an attempt to minimize the friction and wear characteristics of electroless Ni–B coatings simultaneously by optimizing the three coating parameters viz. bath temperature, concentration of reducing agent and concentration of nickel source together with the annealing temperature. Taguchi based grey relational analysis is employed for the optimization of this multiple response problem using an L 27 orthogonal array. Analysis of variance reveals that concentration of reducing agent has the maximum contribution in controlling the friction and wear behaviour of Ni–B coating. The interaction between bath temperature and nickel source concentration is also found to possess significant contribution in controlling the friction and wear characteristics. The surface morphology, composition and phase structure analysis are done with the help of scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and X-ray diffraction analysis (XRD), respectively. Moreover the wear mechanism is studied and found to be in general abrasive in nature.
Tribological characteristics of electroless Ni–B coating and optimization of coating parameters using Taguchi based grey relational analysis
Research highlights ► Friction and wear of electroless Ni-B coatings are optimized by Taguchi approach. ► Concentration of reducing agent has the maximum contribution on friction and wear. ► Interaction of bath temperature and nickel concentration has some contribution. ► The wear mechanism is found to be abrasive in nature.
Abstract Electroless nickel coating is an autocatalytic coating whose characteristics are very much dependent on the composition of electroless bath. The present study is an attempt to minimize the friction and wear characteristics of electroless Ni–B coatings simultaneously by optimizing the three coating parameters viz. bath temperature, concentration of reducing agent and concentration of nickel source together with the annealing temperature. Taguchi based grey relational analysis is employed for the optimization of this multiple response problem using an L 27 orthogonal array. Analysis of variance reveals that concentration of reducing agent has the maximum contribution in controlling the friction and wear behaviour of Ni–B coating. The interaction between bath temperature and nickel source concentration is also found to possess significant contribution in controlling the friction and wear characteristics. The surface morphology, composition and phase structure analysis are done with the help of scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and X-ray diffraction analysis (XRD), respectively. Moreover the wear mechanism is studied and found to be in general abrasive in nature.
Tribological characteristics of electroless Ni–B coating and optimization of coating parameters using Taguchi based grey relational analysis
Das, Suman Kalyan (Autor:in) / Sahoo, Prasanta (Autor:in)
11.11.2010
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| British Library Online Contents | 2011