en Research Paper Research Paper <div style="text-align: justify;">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 (&epsilon;) phase with fcc (&gamma;) 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.</div> Micro-hardness, X-ray diffraction, Wear test, Diffusion coefficient, Plasma nitriding. 63 72 http://ijmse.iust.ac.ir/browse.php?a_code=A-10-1873-1&slc_lang=en&sid=1 R. Kumar ravindrauniversal@yahoo.com 1800319475328460014652 1800319475328460014652 Yes Birla Institute of Technology, Mesra Jaipur Campus Y. Chandra Sharma 1800319475328460014653 1800319475328460014653 No Vivekananda Global University, Jaipur, India V. Vidya Sagar 1800319475328460014654 1800319475328460014654 No Malviya National Institute of Technology, Jaipur, India D. Bhardwaj 1800319475328460014655 1800319475328460014655 No Birla Institute of Technology, Mesra, Jaipur Campus, India