First published in 1995. The International Federation for the Heat Treatment of Materials was founded in 1971. The name was modified in 1986 to International Federation for Heat Treatment and Surface Engineering, but the acronym IFHT was retained. The objective of IFHT is to serve as the premier organisation for facilitating and promoting the international exchange of information in the science and technology of heat treatment and surface engineering. Its particular strength is its effectiveness as a forum uniting science and industry. Surface Engineering is now accepted as a discipline in its own right. This work strives to be more than a mere collection of definitions. Wherever possible the guide expands to provide greater technical detail and, where appropriate, cited further references and application examples. It is hoped that the book will serve as an informative quick reference guide that will prove valuable to the expert and non-expert alike.