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Stainless steel weld metal designed to mitigate residual stresses

Shirzadi, A. A.; Bhadeshia, H. K. D. H.; Karlsson, L. and Withers, P. J. (2009). Stainless steel weld metal designed to mitigate residual stresses. Science and Technology of Welding & Joining, 14(6) pp. 559–565.

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DOI (Digital Object Identifier) Link: https://doi.org/10.1179/136217109X437178
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Abstract

There have been considerable efforts to create welding consumables which on solid state phase transformation partly compensate for the stresses which develop when a constrained weld cools to ambient temperatures. All of these efforts have focused on structural steels which are ferritic. In the present work, alloy design methods have been used to create a stainless steel welding consumable which solidifies as δ ferrite, transforms almost entirely into austenite which then undergoes martensitic transformation at a low temperature of about 220C. At the same time, the carbon concentration has been kept to a minimum to avoid phenomena such as sensitisation. The measured mechanical properties, especially toughness, seem to be significantly better than commercially available martensitic stainless steel welding consumables, and it has been demonstrated that the use of the new alloy reduces distortion in the final joint.

Item Type: Journal Item
Copyright Holders: 2009 Maney Publishing (Published by Maney on behalf of the Institute of Materials, Minerals and Mining)
ISSN: 1362-1718
Keywords: phase transformation; residual stress; stainless steel; martensitic; transformation plasticity
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 26066
Depositing User: Amir Shirzadi
Date Deposited: 07 Jan 2011 12:34
Last Modified: 07 Nov 2017 05:38
URI: http://oro.open.ac.uk/id/eprint/26066
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