Wear behaviour of nitrogen implanted stainless steel

Shrivastava, Sadhna ; Jain, Amitabh ; Sethuramiah, A. ; Vankar, V. D. ; Chopra, K. L. (1987) Wear behaviour of nitrogen implanted stainless steel Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions With Materials and Atoms, 21 (1-4). pp. 591-594. ISSN 0168-583X

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/016858...

Related URL: http://dx.doi.org/10.1016/0168-583X(87)90914-1


Samples of 304 stainless steel were implanted with N2+ ions. Wear tests were carried out on a sample implanted with a dose of 5 × 1016 N2+ cm-2 at 130 keV and stored at room temperature for 10 months. Several other samples were tested within a few days after implantation. The former showed remarkable wear resistance whereas the latter failed to exhibit wear resistance. X-ray diffraction revealed the formation of γ'-Fe4 N in the aged sample whereas other samples showed little or no evidence of it. Artificial aging of one of the discs was also tried by heating it at various temperatures in the range 85-135°C but it failed to exhibit wear resistance. The oxide on each sample is found to contain Fe3O4 and/or Cr3O2. The existence of oxide is confirmed by Auger electron spectroscopy.

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