A Comprehensive Study on Parametric Optimization of Plasma-Sprayed Cr2C3 Coatings on Al6061 Alloy
- Title
- A Comprehensive Study on Parametric Optimization of Plasma-Sprayed Cr2C3 Coatings on Al6061 Alloy
- Creator
- Kumar G.S.P.; Keshavamurthy R.; Santosh M.S.; Reddy S.N.; Tambrallimath V.
- Description
- Plasma spray, a widely employed thermal spray method, is known for enhancing coatings with heightened microhardness, density, and bonding strength. In this study, Taguchis approach was applied to optimize processing parameters for plasma spray-coated surfaces, aiming to reduce porosity, increase hardness, and fortify the connection between Cr2C3 coatings. The design of experiments method facilitated the optimization of process parameters, utilizing signal-to-noise ratios and ANOVA analysis to assess the significance of each processing parameter and identify optimal parameter combinations. Powdered feed rate and stand-off distance emerged as the two most critical processing variables influencing permeability and hardness, contingent on signal-to-noise ratios. S/N ratio analysis was employed to determine the optimal processing parameters for permeability, hardness, and bonding strength. For porosity, the optimal stand-off distance, powdered feed rate, and current density were identified as 60rpm, 50g/min, and 460ampsmm/s, respectively. Exemplary process conditions for hardness included a powdered feed rate of 60g/min, a stand-off distance of 80rpm, and a current density of 480 amps. Lastly, for strength properties, the ideal process variables were a stand-off distance of 80rpm, a current density of 480amps, and a powdered feed rate of 60g/min. Despite small differences between projected R2 and modified R2 values in statistical data on permeability, hardness, and bonding strength, the proximity to the one emphasizing the fit of the linear regression used for analysis was evident. Fracture results from the binding strength test postulate mixed adhesion-cohesion type failures in the Cr2C3 coatings. The Institution of Engineers (India) 2024.
- Source
- Journal of The Institution of Engineers (India): Series D
- Date
- 2024-01-01
- Publisher
- Springer
- Subject
- AA6061 aluminum alloy substrate; Analysis of variance; Bond strength; Cr2C3 coatings; Design of experiments; Fracture analysis; Microhardness; Plasma spray; Porosity
- Coverage
- Kumar G.S.P., Department of Automobile Engineering, CHRIST University, Bengaluru, 560074, India; Keshavamurthy R., Department of Mechanical Engineering, Dayananda Sagar College of Engineering, Bengaluru, 560078, India; Santosh M.S., Department of Automobile Engineering, CHRIST University, Bengaluru, 560074, India; Reddy S.N., Department of Automobile Engineering, CHRIST University, Bengaluru, 560074, India; Tambrallimath V., Department of Automobile Engineering, Dayananda Sagar College of Engineering, Bengaluru, 560078, India
- Rights
- Restricted Access
- Relation
- ISSN: 22502122
- Format
- Online
- Language
- English
- Type
- Article
Collection
Citation
Kumar G.S.P.; Keshavamurthy R.; Santosh M.S.; Reddy S.N.; Tambrallimath V., “A Comprehensive Study on Parametric Optimization of Plasma-Sprayed Cr2C3 Coatings on Al6061 Alloy,” CHRIST (Deemed To Be University) Institutional Repository, accessed February 25, 2025, https://archives.christuniversity.in/items/show/13708.