Methods Of Metallographic Specimen Preparation

/.letallography is much more than taking striking pictures at high magnifications or polishing and etching specimens in such a way that no scratches can be seen. Basically, metallography is the physical metallurgist's most useful and most used tool for studying metals. Although it is perhaps his oldest tool, it certainly is not likely to become obsolete. Rather, the continued demands that have been placed upon materials have required more detailed charac terizations of their microstructures and this, in turn, has re quired the metallographer to develop new techniques to make these characterizations. Not too many years ago, the metallographer had only optical microscopes with which to examine his specimens. Now he has elec tron microscopes, scanning electron microscopes, and a whole host of instruments which were unknown to him only a relatively few years ago. This has forced him to learn not only how to use these new instruments and how to interpret the information that they provide but it also has made him develop new techniques for preparing the samples for examination.

Updated and translated by André Luiz V. da Costa e Silva This book is a combination of a metallographic atlas for steels and cast irons and an introductory textbook covering the fundamentals of phase transformations and heat treatment of these materials. Every important stage of processing, from casting to cold working is clearly discussed and copiously illustrated with metallographs that show the obtained structures, both desired and those achieved when deviations occur. First published in 1951 by Professor Hubertus Colpaert from the Institute for Technological Research (IPT) of São Paulo, Brazil, this book became one of the most important Brazilian references for professionals interested in the processing, treatment, and application of steels and cast irons. In the Fourth Edition and English translation, updated and translated by Professor André Luiz V. da Costa e Silva, the concept of the of the original edition was preserved while the important developments of recent decades, both in metallographic characterization and in steel and iron products, as well as progress in the understanding of the transformations that made the extraordinary developments of these alloys possible, were added. Most metallographs are of actual industrial materials and a large number originate from industry leaders or laboratories at the forefront of steel and iron development. As steel continues to be the most widely used metallic material in the world, Metallography of Steels continues to be an essential reference for students, metallographers, and engineers interested in understanding processing-properties-structure relationships of the material. The balance between theoretical and applied information makes this book a valuable companion for even experienced steel practitioners.