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A statistical assessment of the equivalence between creep and hot tensile behaviour of 2.25Cr-1Mo steel
Mark Evans 
Materials Science and Technology
Swansea University Author:
Mark Evans
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DOI (Published version): 10.1177/02670836241273477
Abstract
It is important to be able to predict the creep life of materials used in power plants. Levi De Oliveira Bueno has suggested an equivalence between creep and high temperature tensile testing for 2.25Cr-1Mo steel. This offers the potential for reducing the development cycle for new materials designed...
| Published in: | Materials Science and Technology |
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| ISSN: | 0267-0836 1743-2847 |
| Published: |
SAGE Publications
2024
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| Online Access: |
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa67093 |
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| Abstract: |
It is important to be able to predict the creep life of materials used in power plants. Levi De Oliveira Bueno has suggested an equivalence between creep and high temperature tensile testing for 2.25Cr-1Mo steel. This offers the potential for reducing the development cycle for new materials designed to operate at ever higher temperatures. This paper reviews the literature to identify some suitable statistical tests for this equivalence. When applied to 2.25Cr-1Mo steel, it was found that this equivalence was only valid if it the Monkman-Grant exponent equalled -1. However, this constraint was not accepted by the data based on the proposed statistical tests, and when this constraint was relaxed the equivalence between these different types of test data disappeared. |
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| Keywords: |
creep testing, tensile testing, Monkman-Grant relation, statistical test for linear restrictions, predictive performance |
| College: |
Faculty of Science and Engineering |
| Funders: |
Swansea University |