chapter  8
64 Pages

Nitriding Techniques, Ferritic Nitrocarburizing, and Austenitic Nitrocarburizing Techniques and Methods

References .......................................................................................................................... 537

As was stated in the first edition of this handbook, interest in the subject of nitriding has grown

even more as a recognized and proven surface engineering process. Further to this (and particu-

larly during the past 10 years) has become recognized as a very simple process and one with-

out serious problems that can arise, such as the problem of distortion. As all heat treaters,

a problem. The process of

nitriding, while not distortion free, is a process that can incur minimal distortion such as that seen

on the other surface treatment process techniques, which involve higher process temperatures as

well as a quench from a high austenitizing temperature. The processes referred to are carburizing

and carbonitriding. Both of these processes are high-temperature operations and require metal-

lurgical phase changes in order to induce carbon, or carbon plus nitrogen into the steel surface.