Investigations on silicon nitride superimposed nanocoated cutting tool by physical vapour deposition and atomic force microscopy

• Published in: Applied nanoscience Vol. 11; no. 4; pp. 1107 - 1115
• Main Author: Nallusamy, S.
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.04.2021; Springer Nature B.V
• Subjects: Atomic force microscopy; Carbide tools; Chemistry and Materials Science; Cutting tools; Cutting wear; Machining; Materials Science; Membrane Biology; Microscopes; Microscopy; Morphology; Nanochemistry; Nanotechnology; Nanotechnology and Microengineering; Original Article; Physical vapor deposition; Profilometers; Silicon nitride; Styli; Thickness measurement; Tool wear; Cutting tool; Inserts; Nanocoating; Magnetron sputtering; Physical vapour deposition
• DOI: 10.1007/s13204-021-01668-z
• ISSN: 2190-5509

In cutting tool scenario, tool wear is a major drawback of the cutting tool when machining the hardened steel. One of the possible ways to reduce the tool wear is to use coated cutting tool. A number of researchers are in progress to reduce the tool wear and enhance its life. The subject of the research work is to investigate the cutting tool coated with silicon nitride on the tugstun carbide insert. Stylus profilometer was used to measure the thickness of the coatings and atomic force microscopy was used to analyse the coated surface morphology. The AFM images clearly explicate the morphology of coating deposited surface of the sample. From the final results, it was observed that the thickness of the coating attained was about 830 nm with the deposition time of 120 min and also found that a higher deposition time leads to increase in thickness of coating.