MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
Enhancing Corrosion Resistance of 304 Stainless Steel GMA Welds with Electromagnetic Interaction
Francisco F. CurielRafael GarcíaVictor H. LópezJorge González-Sánchez
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2011 Volume 52 Issue 8 Pages 1701-1704

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Abstract

Plates of AISI 304 stainless steel were gas metal arc welded under the effect of an electromagnetic interaction. Samples of the heat affected zone were subjected to the double loop electrochemical potentiokinetic reactivation technique to evaluate the degree of sensitization (DOS). The as-received plates had a significant DOS whereas samples welded under electromagnetic interaction presented lower DOS as compared with samples plainly welded. The reduction in the DOS suggests that the electromagnetic interaction enables Cr redistribution in the austenitic grains during welding reducing Cr depleted zones.

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© 2011 The Japan Institute of Metals and Materials
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