The Effect of Environmental Parameters on Nondestructive Control of Metal Machine Parts by the Contact Potential Difference Method

Abstract

This article is devoted to improvement of a nondestructive control of metal machine parts by the contact potential difference method. The results of experimental studies of the effect of environmental parameters on the contact potential difference measurements with a Kelvin probe on the surface of metal samples from Al, Ti, and Ni are presented. The measured dependence of the contact potential difference on the surface of metals on the environmental parameters has been explained. Practical recommendations for measuring the contact potential difference on the surface of parts have been given. The results can be used in production, operation, and repair of metal machine parts.

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Correspondence to V. S. Oleshko.

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Translated by G. Dedkov

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Oleshko, V.S. The Effect of Environmental Parameters on Nondestructive Control of Metal Machine Parts by the Contact Potential Difference Method. J. Mach. Manuf. Reliab. 49, 550–554 (2020). https://doi.org/10.3103/S1052618820060060

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Keywords:

  • electron work function
  • contact potential difference
  • Kelvin probe
  • metal
  • machine parts.