The mechanical properties and corrosion performance of martensitic stainless steel welded joint with new developed matching welding consumables is investigated. The matching welded joint showed over matching even at high temperature at 200Åé and good low temperature toughness. The resistance to CO2 of matching welded joint was same as that of base metal. No preferential corrosion observed even in the acid condition. The SSC resistance of matching welded joint was higher than that of duplex welded joint. No hydrogen embrittlement was observed under cathodic condition. The matching welded joints have superior corrosion resistance for linepipe application.

Subject
Hydrogen embrittlement, Welding, Acidity, Base metals, Welded joints, Gas tungsten arc welding, Sodium chloride solution, Gas metal arc welding, Steel, Corrosion resistance, Sulfide stress cracking, Hardness, Weld metal
Keywords:
martensitic stainless steel, matching welding consumables, CO2 corrosion, sulfide stress cracking, pitting, heat affected zone, cathodic protection, hydrogen embrittlement
© 2001 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).
2001
Association for Materials Protection and Performance (AMPP)
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