IJIRST (International Journal for Innovative Research in Science & Technology)ISSN (online) : 2349-6010

 International Journal for Innovative Research in Science & Technology

Impact of CrN PVD Coating Thickness on 316l Austenitic Stainless Steel Wear Resistance


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International Journal for Innovative Research in Science & Technology
Volume 3 Issue - 5
Year of Publication : 2016
Authors : P. Giridhar ; Dr Ram Subbiah; Kosaraju Satyanarayana ; N. Sateesh

BibTeX:

@article{IJIRSTV3I5038,
     title={Impact of CrN PVD Coating Thickness on 316l Austenitic Stainless Steel Wear Resistance},
     author={P. Giridhar, Dr Ram Subbiah, Kosaraju Satyanarayana and N. Sateesh },
     journal={International Journal for Innovative Research in Science & Technology},
     volume={3},
     number={5},
     pages={96--99},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV3I5038.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}



Abstract:

In this thesis CrN is used as PVD coating material on 316L grade austenitic stainless steel material at different coating thicknesses and the variation in wear resistance is observed. 316L is a low carbon composition grade of austenitic stainless steel with properties like corrosion resistance, anti-bacterial and bio compatibility increases its range of applications. But it still lacks the properties like wear resistance and hardness which impose its limitation in the field of cutting tools. In this, the specimens were PVD coated with CrN, each at different coating thicknesses of 2-3, 4-5 and 9-10 µm. The coated specimens were tested for their wear resistance on a Pin on Disc wear testing machine at various loads. The specimens were then analyzed under Optical Microscope (OM) and Scanning Electron Microscope (SEM) to find the case depth and nature of wear respectively. The final calculated value of the wear of all samples is calculated and the rate of wear resistance derived. The results indicate an increase in wear resistance and hardness with continuous increase of coating thickness and making the 9-10 µm samples more reliable compared to the other.


Keywords:

Scanning Electron Microscope, Optical Microscope, Pin on Disc, PVD


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