Protective coatings in the oil and gas industry play an important role in the reduction of maintenance and repair costs for equipment and tools. In this paper, we introduce electroplating of Ni-W-B and Ni-W-B-nanodiamond metal matrix nanocomposite protective coatings as an alternative to hard chrome coatings. Hardness and corrosion resistance of electroplated nanocomposite coatings are reported here and discussed in light of process parameters such as current density, boron addition and diamond nanoparticles. A novel boron source that enables greater incorporation of B in the coating was used. The synergistic effect of W, B and nanodiamond towards mechanical and corrosion resistance properties are discussed.

Subject
Scanning electron microscopy, Nickel coatings, Coatings, Corrosion resistant alloys, Composition, Nickel based alloys, Boron, Current densities, Nanocomposites, Metals, Electroplating, Corrosion resistance, Hardness
Keywords:
Protective coatings, Ni-W alloy, Ni-W-B alloy, Nanodiamond, Nanocomposite
© 2017 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).
2017
Association for Materials Protection and Performance (AMPP)
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