Influence of workpiece materials on the characteristics of the layers by electrical discharge coating

Nobuyuki Sumi, Chihiro Kato, Masayoshi Mizutani, Tsunemoto Kuriyagawa

Research output: Contribution to conferencePaperpeer-review

Abstract

We investigated influence of iron-based workpiece materials on the characteristics of the Si layers by electrical discharge coating. It was found that the chemical elements of the precipitations were uniformly dispersed in the layer on the workpiece containing the precipitations whose sizes were a few micrometers. By contrast, voids occurred in the layer on the workpiece containing bigger precipitations because the precipitations not melted totally in the coating process were the starting points of the voids. In addition, the surface of the Si layer on FC250 was extremely rough and the distribution of the chemical elements of the layer was inhomogeneous. However, the layer was amorphous and the friction coefficient of the layer was lower than that of the workpiece.

Original languageEnglish
Publication statusPublished - 2015 Oct 18
Event8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015 - Kyoto, Japan
Duration: 2015 Oct 182015 Oct 22

Other

Other8th International Conference on Leading Edge Manufacturing in 21st Century, LEM 2015
CountryJapan
CityKyoto
Period15/10/1815/10/22

Keywords

  • Amorphous
  • Electrical discharge coating
  • Friction coefficient
  • Gray cast iron
  • Precipitation
  • Si layer

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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