High Energy Surface Implantation by Ion Nitrogen of Ultra- Fine Grained Ti-6Al-4V Alloy for Engineering Application

Abstract:

This paper aims to study the peculiarities of a modified layer in the surface of ultrafine-grained (UFG) Ti-6Al-4V alloy after high energy ion nitrogen implantation. The UFG structure in the alloy was produced by equal channel angular pressing. X-ray diffraction analysis and scratch-testing were applied for the investigation. The influence of low-temperature annealing (400°C during 1 hour) on the substructure parameters and phase composition of the surface layer depending on a number of cycles of ion implantation with annealing was shown in the research. The effect of the UFG structure on mechanisms and strengthening degree of the surface after ion implantation is discussed.

• Periodical: Materials Science Forum (Volume 1016)
• Pages: 1305-1311
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.1016.1305
• Online since: January 2021
• Authors: Irina P. Semenova*, Marina Smyslova, Konstantin Selivanov, Vil Sitdikov, Roman Valiev
• Keywords: Ion Implantation, Modified Layer, Phase Composition, Scratch-Test, Titanium Alloys, Ultrafine-Grained Structure

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