The erosion behavior of candidate steel alloys for liquid-solid particle slurry service in coal conversion equipment was determined over a range of testing conditions. It was determined that relative erosion reistance of the carbon, low alloy, chromium, and austenitic steels tested could not be readily related to their composition, morphology, or mechanical properties. Higher solids loading and larger particles in the coal-kerosene slurries used resulted in greater erosion. The greater the lubricity of the carrier liquid is, the lower is the erosivity of the slurry. Low elevated temperatures can cause a decrease or an increase in the erosivity of the slurry, depending on the alloy tested and the test temperature. The mechanism of erosion was determined to be of a platelet formation type, similar to that observed in gas-solid particle stream erosion of ductile metals.

Subject
Steel surfaces, Materials, Slurry, Kinetic energy, Solids, Solvents, Liquids, Meshes, Metals, Erosion, Steel, Coal, 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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