NA 145
DIN Standards Committee Technology of Materials
Standards
[CURRENT]
DIN 30902
DIN 30902
Heat treatment of ferrous materials - Light-microscopical determination of the depth and porosity of the compound layer of nitrided and nitro-carburized ferrous parts
Title (German)
Wärmebehandlung von Eisenwerkstoffen - Lichtmikroskopische Bestimmung der Dicke und Porosität der Verbindungsschichten nitrierter und nitrocarburierter Werkstücke
Overview
The functional properties of nitro-carburized workpieces, especially under wear and corrosion stress, are determined by the composition, structure, porosity and overall thickness of the compound layer. The thickness and porosity of the compound layer are usually used to assess the quality. This document specifies a method for determining the thickness of the compound layer and its porous content of nitrided and nitro-carburized workpieces made of steel, cast iron and sintered steels using light microscopy.
