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Chemical composition and heat treatment influence on duplex stainless steels fatigue crack propagation resistance

Chemical composition and heat treatment influence on duplex stainless steels fatigue crack... Austeno-ferritic (duplex) stainless steels are prone to age hardening and to embrittle over a wide temperature range depending on their chemical composition and, obviously, on the heat treatment conditions. This is mainly due to precipitation phenomena that occur inside ferritic grain and at ferrite-austenite grain boundaries with a kinetic that is influenced by the steel chemical composition and by the temperature. This work aims to offer a complete view of the influence of the chemical composition on the DSSs fatigue crack propagation, considering different ageing temperatures and different loading conditions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Strength, Fracture and Complexity IOS Press

Chemical composition and heat treatment influence on duplex stainless steels fatigue crack propagation resistance

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Publisher
IOS Press
Copyright
Copyright © 2018 IOS Press and the authors. All rights reserved
ISSN
1567-2069
eISSN
1875-9262
DOI
10.3233/SFC-180226
Publisher site
See Article on Publisher Site

Abstract

Austeno-ferritic (duplex) stainless steels are prone to age hardening and to embrittle over a wide temperature range depending on their chemical composition and, obviously, on the heat treatment conditions. This is mainly due to precipitation phenomena that occur inside ferritic grain and at ferrite-austenite grain boundaries with a kinetic that is influenced by the steel chemical composition and by the temperature. This work aims to offer a complete view of the influence of the chemical composition on the DSSs fatigue crack propagation, considering different ageing temperatures and different loading conditions.

Journal

Strength, Fracture and ComplexityIOS Press

Published: Jan 1, 2018

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