Welding Metallurgy of Stainless Steels

When considering the operational performance of stainless steel weldments the most important points to consider are corrosion resistance, weld metal mechanical properties and the integrity ofthe weldedjoint. Mechanical and corrosion resistance properties

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Welding Metallurgy of Stainless Steels In collaboration with Gunther Rabensteiner Ernst Perteneder Heinz Schabereiter Josef Tosch

Springer-Verlag Wien New York

a. o. Univ.-Prof. Dipl.-Ing. Dr. mont. Erich Folkhard, Dir. ret. Dipl.-Ing. Dr. mont. Gunther Rabensteiner, Head of Research, Development and Technology Department Dipl.-Ing. Dr. mont. Ernst Perteneder, Head of Development Department for Filler Metals Heinz Schabereiter, Head of Welding Technology Department Ing. (HTL) Josef Tosch, Development Engineer for Filler Metals Bohler Ges. m. b. H. Welding Division A-8605 Kapfenberg, Austria Revised Translation of Metallurgie der SchweiBung nichtrostender Stahle Wien New York: Springer-Verlag 1984 © 1984 by Springer-Verlag/Wien ISBN-13: 978-3-7091-8967-2

This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically those of translation, reprinting, re-use of illustrations, broadcasting, reproduction by photocopying machine or similar means, and storage in data banks. © 1988 by Springer-Verlag/Wien Softcover reprint of the hardcover 1st edition 1988

With 115 partly coloured Figures

Library of Congress Cataloging-in-Publication Data: Folkhard, Erich. [Metallurgie der SchweiBung nichtrostender Stahle. English] Welding metallurgy of stainless steels I Erich Folkhard in collaboration with Gunther Rabensteiner ... let at.]. p. cm. Translation of: Metatlurgie der SchweiBung nichtrostender Stahle. Bibliography: p. Includes index. ISBN-13: 978-3-7091-8967-2 1. Steel, Stainless-Welding. 2. Steel, Stainless-Metallurgy. I. Rabensteiner, Gunther. II. Title. TS227.2.F64 1988. 672.5'2-dc 19.88-16021.

ISBN-13: 978-3-7091.s967-2 e-ISBN-13: 978-3-7091.s965-8 DOl: 1O.1007/978-3-7091.s965-8

Preface to the German Edition When considering the operational performance of stainless steel weldments the most important points to consider are corrosion resistance, weld metal mechanical properties and the integrity ofthe weldedjoint. Mechanical and corrosion resistance properties are greatly influenced by the metallurgical processes that occur during welding or during heat treatment of welded components. This book is aimed, therefore, at providing information on the metallurgical problems that may be encountered during stainless steel welding. In this way we aim to help overcome a certain degree of insecurity that is often encountered in welding shops engaged in the welding of stainless steels and is often the cause of welding problems which may in some instances lead to the premature failure of the welded component. The metallurgical processes that occur during the welding of stainless steel are of a highly intricate nature. The present book focuses in particular on the significance of constitution diagrams, on the processes occurring during the solidification of weld metal and on the recrystallization and precipitation phenomena which take place in the area of the welds. There are specific chapters covering the hot cracking resistance during welding and the practical w