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The influence of the composition of cobalt phase of hard alloys on tool wear upon laser hardening

  • Surface Modification Including Charged Particle Beams, Photons, and Plasma Flows
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Russian Journal of Non-Ferrous Metals Aims and scope Submit manuscript

Abstract

The effect of laser pulsed treatment (LT) on the composition of the cobalt phase of the hard W-C alloys and operational characteristics of the cutting tool fabricated based on them are investigated. The determining role of binding cobalt in the formation of the mechanism of hardening the alloys is shown. It is shown that the LT in optimal models leads to the additional dissolution of WC in the Co binder and enrichment of the surface layer with cobalt in the laser treatment zone. The mentioned effects provide a decrease in wear resistance of the tool under the conditions of its adhesive-fatigue wear. The joint effect of the LT modes and cutting on the durability of the hardened instrument is analyzed, and the conditions are determined, at which its largest increase is provided.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, Samara Branch, ul. N-Sadovaya 221, Samara, 443011, Russia

    S. I. Yaresko

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  1. S. I. Yaresko
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Correspondence to S. I. Yaresko.

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Original Russian Text © S.I. Yaresko, 2009, published in Izvestiya VUZ. Poroshkovaya Metallurgiya i Funktsional’nye Pokrytiya, 2009, No. 2, pp. 54–61.

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Yaresko, S.I. The influence of the composition of cobalt phase of hard alloys on tool wear upon laser hardening. Russ. J. Non-ferrous Metals 50, 556–562 (2009). https://doi.org/10.3103/S106782120905023X

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  • DOI: https://doi.org/10.3103/S106782120905023X

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