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Stress corrosion crack initiation testing with tapered specimens in high-temperature water – results of a collaborative research project
Corrosion Engineering, Science and Technology, Volume: 56, Issue: 2, Pages: 103 - 118
Swansea University Author: Yuchen Gu
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DOI (Published version): 10.1080/1478422x.2020.1815460
Abstract
The applicability of an accelerated test technique using tapered tensile specimens for investigating thestress corrosion crack (SCC) initiation behaviour of structural materials in high-temperature water wasassessed in the framework of a European collaborative research project (MICRIN – MItigation o...
Published in: | Corrosion Engineering, Science and Technology |
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ISSN: | 1478-422X 1743-2782 |
Published: |
Informa UK Limited
2021
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Online Access: |
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URI: | https://cronfa.swan.ac.uk/Record/cronfa57703 |
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Abstract: |
The applicability of an accelerated test technique using tapered tensile specimens for investigating thestress corrosion crack (SCC) initiation behaviour of structural materials in high-temperature water wasassessed in the framework of a European collaborative research project (MICRIN – MItigation of CRackINitiation). The main advantage of using a tapered geometry is, that in a single test a stress gradient isobtained through the gauge length, and therefore a stress threshold for SCC initiation can bedetermined in a reasonable timeframe. This method was used to investigate two different materialsthat were known to be susceptible to SCC in light water reactor environment: a high-Si stainlesssteel and a Ni-base weld metal (Alloy 182). The results of the international test programmeconfirmed that the tapered specimen test methodology could be used to identify a SCC initiation stress threshold, albeit that significant scatter was present in the data. |
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College: |
Faculty of Science and Engineering |
Funders: |
EPSRC |
Issue: |
2 |
Start Page: |
103 |
End Page: |
118 |