Optimization of electroless Ni-Co-P coating with hardness as response parameter: A computational approach
This paper reports the effects of the coating parameters on the hardness of the coating with the application of Taguchi method. The three factors viz. concentration of Cobalt sulphate, concentration of Sodium Hypophosphite and the temperature of electroless bath with three different levels each are...
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| Format: | Article |
| Language: | English |
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Malaysian Tribology Society
2018-09-01
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| Series: | Jurnal Tribologi |
| Subjects: | |
| Online Access: | http://jurnaltribologi.mytribos.org/v18/JT-18-81-96.pdf |
| _version_ | 1828475155566821376 |
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| author | Subhasish Sarkar Rishav Kumar Baranwal Sameer Lamichaney Jhumpa De Gautam Majumdar |
| author_facet | Subhasish Sarkar Rishav Kumar Baranwal Sameer Lamichaney Jhumpa De Gautam Majumdar |
| author_sort | Subhasish Sarkar |
| collection | DOAJ |
| description | This paper reports the effects of the coating parameters on the hardness of the coating with the application of Taguchi method. The three factors viz. concentration of Cobalt sulphate, concentration of Sodium Hypophosphite and the temperature of electroless bath with three different levels each are fitted into L27 orthogonal arrays to optimize the coating conditions. The optimized results were obtained for 10 g/L concentration of Cobalt Sulphate, 25 g/L concentration of Sodium Hypophosphite and 85̊C temperature. The micro hardness of this coating was 1790 VHN10g. With the help of annealing at 400̊C the micro-hardness increased to 2027 VHN10g. Analysis of variance was applied to find the significant factors and the interactions. It has been investigated that concentration of Cobalt Sulphate and concentration of Sodium Hypophosphite were the most significant factors in determining the hardness of the Ni-Co-P coating. Presence of different phases (Co2P and Ni3P) in the coating was found using X-Ray diffraction analysis and composition of the coating was investigated using Energy-dispersive X-Ray Spectroscopy (EDAX). It showed high percentage of Cobalt (13.27%) and Phosphorus (8.85%) along with Nickel. Scanning Electron Microscopy analysis was used for observing the micro-structure of the substrate, optimized coating and annealed optimized coating. |
| first_indexed | 2024-12-11T06:08:46Z |
| format | Article |
| id | doaj.art-6f0767b5799b4d00a346fa9580d7068c |
| institution | Directory Open Access Journal |
| issn | 2289-7232 |
| language | English |
| last_indexed | 2024-12-11T06:08:46Z |
| publishDate | 2018-09-01 |
| publisher | Malaysian Tribology Society |
| record_format | Article |
| series | Jurnal Tribologi |
| spelling | doaj.art-6f0767b5799b4d00a346fa9580d7068c2022-12-22T01:18:11ZengMalaysian Tribology SocietyJurnal Tribologi2289-72322018-09-01188196Optimization of electroless Ni-Co-P coating with hardness as response parameter: A computational approachSubhasish Sarkar0Rishav Kumar Baranwal1Sameer Lamichaney2Jhumpa De3Gautam Majumdar4Department of Mechanical Engineering, Jadavpur University, INDIA.Department of Mechanical Engineering, Jadavpur University, INDIA.Department of Mechanical Engineering, Jadavpur University, INDIA.Department of Mechanical Engineering, Academy of Technology, INDIA.Department of Mechanical Engineering, Jadavpur University, INDIA.This paper reports the effects of the coating parameters on the hardness of the coating with the application of Taguchi method. The three factors viz. concentration of Cobalt sulphate, concentration of Sodium Hypophosphite and the temperature of electroless bath with three different levels each are fitted into L27 orthogonal arrays to optimize the coating conditions. The optimized results were obtained for 10 g/L concentration of Cobalt Sulphate, 25 g/L concentration of Sodium Hypophosphite and 85̊C temperature. The micro hardness of this coating was 1790 VHN10g. With the help of annealing at 400̊C the micro-hardness increased to 2027 VHN10g. Analysis of variance was applied to find the significant factors and the interactions. It has been investigated that concentration of Cobalt Sulphate and concentration of Sodium Hypophosphite were the most significant factors in determining the hardness of the Ni-Co-P coating. Presence of different phases (Co2P and Ni3P) in the coating was found using X-Ray diffraction analysis and composition of the coating was investigated using Energy-dispersive X-Ray Spectroscopy (EDAX). It showed high percentage of Cobalt (13.27%) and Phosphorus (8.85%) along with Nickel. Scanning Electron Microscopy analysis was used for observing the micro-structure of the substrate, optimized coating and annealed optimized coating.http://jurnaltribologi.mytribos.org/v18/JT-18-81-96.pdfElectrolessTaguchi orthogonal arraysOptimizeSpectroscopyMicroscopyAnnealed |
| spellingShingle | Subhasish Sarkar Rishav Kumar Baranwal Sameer Lamichaney Jhumpa De Gautam Majumdar Optimization of electroless Ni-Co-P coating with hardness as response parameter: A computational approach Jurnal Tribologi Electroless Taguchi orthogonal arrays Optimize Spectroscopy Microscopy Annealed |
| title | Optimization of electroless Ni-Co-P coating with hardness as response parameter: A computational approach |
| title_full | Optimization of electroless Ni-Co-P coating with hardness as response parameter: A computational approach |
| title_fullStr | Optimization of electroless Ni-Co-P coating with hardness as response parameter: A computational approach |
| title_full_unstemmed | Optimization of electroless Ni-Co-P coating with hardness as response parameter: A computational approach |
| title_short | Optimization of electroless Ni-Co-P coating with hardness as response parameter: A computational approach |
| title_sort | optimization of electroless ni co p coating with hardness as response parameter a computational approach |
| topic | Electroless Taguchi orthogonal arrays Optimize Spectroscopy Microscopy Annealed |
| url | http://jurnaltribologi.mytribos.org/v18/JT-18-81-96.pdf |
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