In order to reduce vehicle weight, high strength cold rolled (HSCR) steels are being used as a replacement for low carbon cold rolled steels in many exposed automobile body panel applications. The use of these thinner sheet materials has increased the need for improved corrosion resistance. That need has led to a growing interest in zinc coated steels for those applications. Electrochemical techniques and Auger electron spectroscopic surface analysis were used to determine the factors which influence zinc phosphate conversion coating formation for the HSCR steels and zinc coated steels. Zinc phosphate coating quality was related to cathodic delamination tendency of the painted steels.

Subject
Coated steel, Zinc rich coatings, Steel surfaces, Galvanized coatings, Porosity, Phosphates, Surface analysis, Steel, Oxygen, Carbon, Zinc, Risk reduction, Alloys
© 1982 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1982
Association for Materials Protection and Performance (AMPP)
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