Novel stress corrosion testing method for high‐strength steels

Latypova, Renata; Kauppi, Timo; Mehtonen, Saara; Hänninen, Hannu; Porter, David; Kömi, Jukka (2018-10-15)
 
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https://doi.org/10.1002/maco.201810462

Latypova, Renata
Kauppi, Timo
Mehtonen, Saara
Hänninen, Hannu
Porter, David
Kömi, Jukka
John Wiley & Sons
15.10.2018

Latypova, R, Kauppi, T, Mehtonen, S, Hänninen, H, Porter, D, Kömi, J. Novel stress corrosion testing method for high‐strength steels. Materials and Corrosion. 2019; 70: 521– 528. https://doi.org/10.1002/maco.201810462

https://rightsstatements.org/vocab/InC/1.0/
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the peer reviewed version of the following article: Latypova, R, Kauppi, T, Mehtonen, S, Hänninen, H, Porter, D, Kömi, J. Novel stress corrosion testing method for high‐strength steels. Materials and Corrosion. 2019; 70: 521– 528, which has been published in final form at https://doi.org/10.1002/maco.201810462. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
https://rightsstatements.org/vocab/InC/1.0/
doi:https://doi.org/10.1002/maco.201810462
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https://urn.fi/URN:NBN:fi-fe2019040210793
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Abstract

This paper presents a novel TFT (tuning fork test) stress corrosion testing method, which was developed for classifying martensitic high‐strength steels. The novel method was developed by applying finite element calculations to optimize a tuning fork geometry to enable accurate stress adjustment with simple inexpensive equipment. Different steels were exposed to cathodic hydrogen charging conditions with various elastic tensile stress levels that were achieved by displacement control. All steels exhibited hydrogen‐induced stress corrosion cracking after exceeding a material‐specific threshold stress level that decreased linearly with increasing hardness.

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