Alloy performance at high temperatures in halogen-containing atmospheres is often limited because of the low melting and highly volatile reaction products. Results of 50 hour tests in oxidizing atmospheres of air-2% chlorine at 900° and 1000° are presented and the alloy performance is ranked according to metal loss and internal penetration. Attention is given to surface morphologies, in particular the beneficial role of alumina scales in such environments. These results, which include comments on chromia-forming alloys and the more damaging influence of refractory elements such as molybdenum and tantalum, permit further understanding of the effect of halogens on materials at elevated temperatures.

Subject
Materials, Materials performance, Nickel based alloys, Halogens, Molybdenum alloys, Penetration, Metals, Scale, Elements, Aluminum alloys, Alloys, Chlorides, Voids
© 1985 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).
1985
Association for Materials Protection and Performance (AMPP)
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