Plate samples for a Ni-Cr-W-Mo alloy (UNS N06230) were aged at temperatures of 1200°F (650°C), 1400°F (760°C) and 1600°F (870°C) for periods of up to 16,000 hours. Room temperature tensile and charpy-V impact toughness properties were determined for the aged samples. In addition, the microstructural features of the aged materials were recorded, and SEM examinations were conducted on the fracture surfaces of the impact toughness samples. The results indicate that the alloy possesses excellent thermal stability characteristics.

Subject
Grain size, Materials, Carbides, Precipitation (solids), Microstructure, Nickel based alloys, Molybdenum alloys, Thermal stability, Tungsten, Impact toughness, Alloys, Toughness, Yield strength
Keywords:
Thermal stability, tensile properties, toughness properties, microstructures, fracture features, HAYNES 230 alloy, Uns N06230, Ni-Cr-W-Mo alloy
© 1994 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).
1994
Association for Materials Protection and Performance (AMPP)
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