Chemical Sciences, Material Sciences
Title : | Development of corrosion protective coatings for AA 2024 and AA 2014 by low pressure cold spray |
Area of research : | Chemical Sciences, Material Sciences |
Focus area : | Corrosion protective coatings |
Principal Investigator : | Dr Harish Barshilla, Chief Scientist, CSIR-National Aerospace Laboratories (CSIR-NAL), Bangalore |
Timeline Start Year : | 2020 |
Timeline End Year : | 2022 |
Contact info : | director@nal.res.in |
Details
Executive Summary : | Objective: • Development of corrosion protective aluminum, zinc based and multilayer (Zn, Ni, Snetc) based coatings on AA (2024-T3) as well as AA 2014 by using low pressure cold spray process.
• Evaluation of the coatings for their thickness, micro-hardness and adhesion strength.
• Morphological and structural characterization of the developed coatings.
• Electrochemical behaviour and corrosion protection studies of the coatings using OCP and PDP techniques.
• Long term corrosion exposure studies by subjecting the samples in 3.5 wt.% NaCl aqueous solution for 24, 48, 96, 336 h.
• Performance evaluation of coatings and comparison with the un coated alloys. |
Organizations involved