Anodic Protection Theory and Practice in the Prevention of Corrosion
The objectives of this book are to give technical information about anodic pro tection, explain how economic analyses are made to determine whether or not it should be used, and describe some of the applications and equipment. Lim itations of the techni
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Theory and Practice in the Prevention of Corrosion
ANODIC PROTECTION
Theory and Practice in the Prevention of Corrosion
OLEN L. RIGGS, JR. Kerr - McGee Technical Center Oklahoma City, Oklahoma
and
CARL E. LOCKE University of Oklahoma Norman, Oklahoma
Consulting editor NORMAN E. HAMNER
WEST BROMWICH COLLEGE OF CO:'v1MERCE .-.,~D TECHNOLOGY
LIBRARY
PLENUM PRESS· NEW YORK AND LONDON
Library of Congress Cataloging in Publication Data Riggs, Olen L Anodic protection. Bibliography: p. Includes index. 1. Metals-Anodic oxidation. l. Locke, Carl E., joint author. II. Hamner, Norman E. Ill. Title. TA462.R46 620.1'623 80-20412 ISBN-13: 978-1-4684-3874-1 e-ISBN-13: 978-1-4684-3872-7 DOl: lO.lO07/978-1-4684-3872-7
Although data and information included in this book have been checked carefully to insure accuracy, application or use of the data and systems discussed is solely at the risk of the user. There is no warranty, implied or otherwise, related to the use of the information herein and no permission is extended covering the application and use of patented equipment or systems. Information herein credited to the Russian journal Protection of Metals (Zashchita Metallov) is reprinted with permission of Plenum Publishing Corp., 227 W. 17th St., New York, N.Y. 10011 and is copyrighted by Plenum. Information herein credited to the Journal of The Electrochemical Society is reprinted by permission of the publisher, The Electrochemical Society, Inc., P.O. Box 2071, Princeton, N.J. 08540.
© 1981 Plenum Press, New York Softcover reprint of the hardcover 1st edition 1981
A Division of Plenum Publishing Corporation 227 West 17th Street, New York, N.Y. 10011 All righ ts reserved No part of this book may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, microfilming, recording, or otherwise, without written permission from the Publisher
In appreciation for the thoughtful support, we dedicate this book to our understanding wives: Ann and Sammie
Preface
The objectives of this book are to give technical information about anodic protection, explain how economic analyses are made to determine whether or not it should be used, and describe some of the applications and equipment. Limitations of the technique will be pointed out. Technological changes that have resulted in higher temperatures, pressures, and velocities increase corrosion rates and markedly influence materials selection and design decisions. Continuous cycle systems impose increased demands on system reliability. New processes require more sophisticated equipment made of costlier metals which are often in short supply and subject to the vagaries of international commerce. The impact of continuing inflation influences decisions related to capital expenditures and maintenance costs. Some problems caused by these considerations can be solved, or solutions simplified, by the use of anodic protection. Technical and scientific information is presented on applications to industrial equipment
