Erosive/corrosive wear of two types of grinding ball metal alloys has been studied by means of an electrochemically instrumented jet slurry apparatus. Quartz particles of −100 to +200 mesh and less than 200 mesh were utilized in the jet slurries under varying conditions of pH, jet velocity, and temperature under either oxygen or nitrogen aeration. At low jetting velocities protective films were not completely removed and increasing pH resulted in lower corrosion rates while at high jetting velocities the protective films were removed and increasing pH resulted in increased corrosion. The larger quartz particles were found to result in increased corrosion rates as compared to the smaller particles. Synergistic effects between corrosion and erosion were found to occur with the major effect occuring for larger particles and higher jet velocities. At the highest jet velocities, the erosive and corrosive action of the slurries were found to be the major factors in weight loss with pH, temperature, and aeration playing a minor role.

Subject
Wear, Slurry, Corrosion rate, Synergistic effect, Quartz, Corrosion detection, Nitrogen, Film formation, Weight loss, Erosion, Cast iron, Oxygen, Alloys
© 1986 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).
1986
Association for Materials Protection and Performance (AMPP)
You do not currently have access to this content.