Experiments were performed in which electrically heated OFHC Cu tubes were exposed to flowing high velocity methane fuels. Significant corrosion was produced during these tests as indicated by recession of the inside tube walls. No corrosion was, however, observed from elevated temperature static exposures of copper specimens to high pressure Liquid Natural Gas (LNG) and high purity methane fuels. Mechanisms postulated to explain this corrosion are: (1) sulfur embrittlement, (2) corrosion interactions with high ac currents, (3) erosion-corrosion, (4) electrochemical corrosion, (5) zeta corrosion, and (6) mercury corrosion. Each of these mechanisms is reviewed in this paper.

Subject
Embrittlement, Sulfur, Oxides, Metal surfaces, Tubes, Walls, Purity, Corrosion attacks, Mercury, Methane, Heat, Copper, Hydrocarbons
© 1988 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).
1988
Association for Materials Protection and Performance (AMPP)
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