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Austenite reformation in the heat-affected zone of duplex stainless steel 2205

✍ Scribed by Henrik Sieurin; Rolf Sandström

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
425 KB
Volume
418
Category
Article
ISSN
0921-5093

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✦ Synopsis

The aim of the present work was to evaluate the amount of reformed austenite in the heat-affected zone (HAZ) of submerged arc welded (SAW) duplex stainless steel 2205. The model is based on calculations of the nucleation and growth of austenite. The present results are compared with other studies to evaluate the toughness properties and the probability of precipitation of brittle, intermetallic sigma phase. The results indicate that cooling the weld in air provides a satisfactory amount of reformed austenite and prevents formation of sigma phase.

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