Various high-temperature solution annealing treatments were explored as potential prevention measures against irradiation-assisted stress corrosion cracking (IASCC) of Type 304SS. The HNO3/Cr+6 corrosion test was used to measure the effectiveness of the high-temperature heat treatments, since the results of this test can be correlated with IASCC susceptibility. Corrosion rate was found to decrease with increasing solution annealing temperature in the range from 2200°F (1204°C) to 2400°F (1316°C). The same low corrosion rate shown by high-purity Type 304SS could be achieved using appropriate temperature-time combinations.

Subject
Materials, Intergranular stress corrosion cracking, Corrosion rate, Solution annealing, Corrosion testing, Photomicrographs, Irradiation assisted stress corrosion cracking, Phosphorus, Corrosion modeling, Weight loss, Heat, Annealing, Grain boundary
Keywords:
stainless steel, irradiation-assisted stress corrosion cracking, solution annealing, HNO3, Cr+6 corrosion test, grain boundary segregation
© 1990 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).
1990
Association for Materials Protection and Performance (AMPP)
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