Linear reciprocating wear of yttria stabilized zirconia based composite coatings developed by thermal spray

Subhasisa Nath, Indranil Manna, Jonathan Lawrence, Jyotsna Dutta Majumdar

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    Abstract

    Ceramic matrix composites are the preferred material for high-temperature application due to their low density, improved strength and toughness, and high-temperature capabilities. In the present study, we report the kinetics and mechanism of linear reciprocating wear of yttria-stabilized zirconia (YSZ)-based composite coatings developed by thermal spray technique. Composite coatings with different volume fractions of CoNiCrAlY and YSZ phases were subjected to linear reciprocating wear under an applied normal load of 10 N against a WC counter-body. The kinetics of wear was investigated by measuring the wear depth over time of coated components against WC surface. Adhesive wear in the 100% CoNiCrAlY coating was responsible for increased friction in the coating which changed to a three-body abrasion in the case of 100% YSZ coating. The composition coatings had a significant effect on the wear mechanism with the ceramic coatings were fractured under reciprocating load. Microcrack propagation and fracturing of ceramic splats were the dominant modes of wear in the ceramic coatings. The 100% YSZ coating showed significant wear than 100% CoNiCrAlY and 50% YSZ + 50% CoNiCrAlY coatings. The mode of wear changed with the presence of a metallic phase in the 50% YSZ + 50% CoNiCrAlY coating. The mode of wear was further studied by the detailed microstructural observation of worn track and correlating it with the wear kinetics and coefficient of friction.

    Original languageEnglish
    Pages (from-to)5041–5056
    Number of pages16
    JournalJournal of Materials Engineering and Performance
    Volume29
    Issue number8
    Early online date19 Aug 2020
    DOIs
    Publication statusPublished - 7 Sept 2020

    Bibliographical note

    The final publication is available at Springer via http://dx.doi.org/10.1007/s11665-020-05039-7

    Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

    Funder

    The authors acknowledge the partial financial support from the Department of Science and Technology (DST), New Delhi, Science and Engineering Research Board (under IMPRINT-II, Ref. No.: IMP/2018/001162/AM (Ver-1)), Indian Space Research Organization (ISRO), and Council of Scientific and Industrial Research (CSIR: 9/81(1170)/12 EMR-I), New Delhi.

    Keywords

    • CMCs
    • coating
    • hardness
    • linear reciprocating wear
    • thermal spray

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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