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Finite-element evaluation and improvement of a test procedure for coating shear bond strength determination

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Abstract

In the research and development of thermal spraying coating systems for wear-resistance applications, it is essential to determine coating/substrate bond strength with a proper test procedure. This article describes mechanical evaluations of a widely adopted coating shear bond strength test procedure conducted via the finite-element method. Analyses of the stress distributions on the coating/substrate interface indicate that significant errors will be introduced if the standard test procedure is used to determine coating shear bond strength. A new test procedure with modified specimen geometry is proposed and then verified for effectiveness.

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Authors and Affiliations

  1. Surface Engineering Research Institute, CMES, No. 21 Dujiakan Changxindian, 100072, Beijing, PR China

    Y. L. Zhu, S. N. Ma & B. S. Xu

Authors
  1. Y. L. Zhu
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  2. S. N. Ma
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  3. B. S. Xu
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Zhu, Y.L., Ma, S.N. & Xu, B.S. Finite-element evaluation and improvement of a test procedure for coating shear bond strength determination. J Therm Spray Tech 8, 328–332 (1999). https://doi.org/10.1361/105996399770350557

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  • DOI: https://doi.org/10.1361/105996399770350557

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