University of Oulu

Kolli, S.K. & Ohligsschläger, T. & Porter, D. A. (2017)Continuous cooling sensitization and its evaluation in austenitic stainless steel EN 1.4310. European Stainless Steel Conference - Science & Market & European Duplex Stainless Steel Conference & Exhibition. Proceedings ISBN 978-88-98990-12-2 . p.1-6

Continuous cooling sensitization and its evaluation in austenitic stainless steel EN 1.4310

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Author: Kolli, S.K.1; Ohligschläger, T.2; Porter, D. A.1
Organizations: 1University of Oulu, Oulu, Finland
2Outokumpu, R&D, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 0.6 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe201706197363
Language: English
Published: Associazione Italiana di Metallurgia, 2017
Publish Date: 2017-06-19
Description:

Abstract

Sensitization in stainless steels is caused by chromium delpleted zones near grain boundaries which can lead to intergranular corrosion and intergranular stress corrosion cracking in service. A lot of work has been done in the past to understand sensitization behaviour under isothermal conditions. However, this study aims at studying the sensitization behaviour in continuous cooling, which is of more practical importance in steel production and in heat treatments such as welding. Conditions for sensitization were determined using experiments (Double-loop Electrochemical Potentiokinetic Reactivation tests (DL-EPR) and compared with DICTRA simulations. Using these conditions a continuous cooling sensitization (CCS) diagram is determined for EN 1.4310 (301) austentic stainless steel. DICTRA is a CALPHAD based simulation software used for diffusion related studies in multicomponent alloys. Solvus temperature for M₂₃C₆ is determined 959°C.

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ISBN Print: 978-88-98990-12-2
Pages: 1 - 6
Conference: 9th European Stainless Steel Conference - Science & Market & 5th European Duplex Stainless Steel Conference & Exhibition
Type of Publication: B3 Article in conference pro-ceedings
Field of Science: 216 Materials engineering
Subjects:
Funding: This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 675715
EU Grant Number: (675715) MIMESIS - Mathematics and Materials Science for Steel Production and Manufacturing
Copyright information: © Aimnet. Published in this repository with the kind permission of the publisher.