Chsracterization of Low Temperature Plasma Ion Nitriding (PIN) of Inconel 600 and 601 Alloys

Autor: R. Kumar, Y. Chandra Sharma, V. Vidya Sagar, D. Bhardwaj
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Iranian Journal of Materials Science and Engineering, Vol 17, Iss 2, Pp 20-29 (2020)
Druh dokumentu: article
ISSN: 1735-0808
2383-3882
Popis: In this study an effort has been made for the plasma ion nitriding (PIN) of Inconel 600 and 601 alloys at low temperatures. After plasma ion nitriding, microstructure study, growth kinetics of nitrided layer formation and wear properties were investigated by various characterization techniques such as; scanning electron microscope (SEM), X-ray diffraction (XRD) analysis, micro-hardness measurement and wear test by pin on disk technique. It was found that, surface micro-hardness increases after PIN process. A mix peak of epsilon (ε) phase with fcc (γ) phase was detected for all temperature range (350 0C to 450 0C), while the chromium nitride (CrN) phase was detected at elevated temperature range ~450 0C in inconel 601 alloy. The calculated values of diffusion coefficient and activation energy for diffusion of nitrogen are in accordance with the literature. Volume loss and wear rate of the plasma nitrided samples decreases, but it increases as PIN process temperature increases.
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