The behavior of the intermetallic materials, IC-50 and IC-218 in dynamic oxidation and hot corrosion tests is compared with that of several commercial superalloys. The tests were conducted in burner rigs, the dynamic oxidation test at 1800°F (982°C) and 2000°F (1093°C), and the hot corrosion test at 1650°F (899°C) with an injection of 50 ppm sea salt solution. The extent of corrosion was measured using metallography and the corrosion products were identified using SEM/EDAX and x-ray diffraction. The corrosion mechanisms of the intermetallics and superalloys are discussed.

Subject
Hot corrosion, Sulfur, Test methods, Materials, Nickel based alloys, Metal oxides, Corrosion scales, Oxide scales, Oxide surfaces, Superalloys, Scale formation, Nickel, Oxidation
© 1991 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).
1991
Association for Materials Protection and Performance (AMPP)
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