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Article | REF: M1226 V2

Carburizing and carbonitriding - Implementation treatments

Author: Claude LEROUX

Publication date: December 10, 2011 | Lire en français

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    Overview

    ABSTRACT

    Carburizing and carbonitriding are two neighboring thermochemical treatments. The choice of the steel grades, as well as the alloying elements, is a significant parameter and crucial for the properties of the carburized or carbonitrided piece. Thus, the core characteristics and in particular the level of resistance and hardness after the hardening treatment are dependent on the carbon content and the nuance of hardenability. The implementation of treatments for carburizing and carbonitriding differ significantly depending on the volumes to be treated, industrial choices, but also the type of process used. Thus, the different lines of treatment, salt baths, in the gas phase or low pressure carburizing are not made ??of the same materials.

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    AUTHOR

    • Claude LEROUX: Engineer from the Conservatoire National des Arts et Métiers (CNAM) - Consultant

     INTRODUCTION

    A description of the principles and processes involved in carburizing or carbonitriding has been provided (see the 1 re part of this article [M 1 225] ). The means used for the carburizing and hardening phase vary according to the process, the volumes to be treated and industrial choices. The choice of steel grades, as well as inspection procedures, must be taken into account, as must any anomalies and defects that may occur.

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