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The Effect of Grain Size on theSusceptibility Towards Strain Age Crackingof Wrought Haynes® 282®
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing. Department of Industrial and Materials Science, Chalmers University of Technology, Gothenburg. (PTW)ORCID iD: 0000-0002-1607-9177
University West, Department of Engineering Science.
University West, Department of Engineering Science, Division of Welding Technology. (PTW)ORCID iD: 0000-0001-9065-0741
2020 (English)In: SPS 2020: Proceedings of the Swedish Production Symposium / [ed] Kristina Säfsten & Fredrik Elgh, Amsterdam: IOS Press, 2020, p. 407-416Conference paper, Published paper (Other academic)
Abstract [en]

The effect of grain size on the suceptibility towards strain age cracking (SAC) has been investigated for Haynes® 282® in the tempeature range of 750 to 950°C after isothermal exposure up to 1800s. Grain growth was induced by heattreating the material at 1150°C for 2h, resulting in a fourfold increase in grain size. Hardness was significanlty reduced after heat treatment as compared to millannealed material. Large grain size resulted in intergranular fracture over a widertemperature range than small grain size material. Ductility was lowest at 850°C, while lower values were observed to be correlated to increased grain size. The rapid formation of grain boundary carbide networks in Haynes® 282® is found to be notable to compensate for higher local stresses on grain boundaries due to incresedgrain size. 

Place, publisher, year, edition, pages
Amsterdam: IOS Press, 2020. p. 407-416
Series
Advances in Transdisciplinary Engineering, ISSN 2352-751X, E-ISSN 2352-7528 ; 13
Keywords [en]
. Welding, Nickel based superalloy, Weld cracking, Strain age cracking, Haynes® 282®, Gleeble
National Category
Metallurgy and Metallic Materials Manufacturing, Surface and Joining Technology
Research subject
Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-16130DOI: 10.3233/ATDE200178ISBN: 978-1-64368-146-7 (print)ISBN: 978-1-64368-147-4 (electronic)OAI: oai:DiVA.org:hv-16130DiVA, id: diva2:1511362
Conference
SPS 2020 - Proceedings of the Swedish Production Symposium, October 7–8, 2020
Available from: 2020-12-18 Created: 2020-12-18 Last updated: 2020-12-18Bibliographically approved

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Hanning, FabianAndersson, Joel

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