On the Determinations of Surface Case Depths of Carburized or Decarburized Steel Parts

Abstract

The thickness of a carburized or decarburized thin layer of steel parts is found to be determinable by a newly developed method which utilizes the relationship between the depth of indentation made by a conical indenter and the indenting load. Qualitative considerations done on this method provide a good explanation for the experimental results. The authors propose this method as a quality control means instead of conventional non-destructive testing methods and microscopic examination which take time and are impractical.