Burnishing a Novel Approach for Thermal Spray Coatings

Burnishing as a novel approach can be employed in this research study to reduce the porosity of thermal spray coating. The configuration of coatings is established according to the character they have to perform in various material systems and environments" (Hocking 1993). The coatings are likely to develop gradually escalating protective oxides preventing the diffusion of corrosive species towards the coating. These protective oxides should possess good resistance against sputtering or spallation due to thermal and mechanical stresses induced while working on the components. Moreover, the applied coatings also act as a "reservoir" for the constituents forming the protective surface oxides(Gurrappa 2003) (Injeti 2008) (Hocking 1993). This study aims at studying the effect of burnishing on thermal spray coatings against high-temperature aggressive environmental applications of boilers, gas turbines, and waste to energy plants, etc. The Burnishing process is used to achieve a high surface finish on metals resulting in a smooth hardened surface with some improved mechanical properties (Vinitha and Rao 2012).

Autorentext

Dr. T.S. Sidhu is presently working as Professor and Head Mechanical Engg Department at Shaheed Bhagat Singh State University. He had Teaching and Administrative experience for more than 25 years. Dr. Singh had worked in different administrative posts such as Director, Principal, and HOD. He had published 100+ papers in various reputed journals.