G. Baylac, C. Bullough, S. Holmström, W. Smith, A. Tonti, C. Forot
{"title":"New approaches to determine negligible creep","authors":"G. Baylac, C. Bullough, S. Holmström, W. Smith, A. Tonti, C. Forot","doi":"10.1080/09603409.2022.2135735","DOIUrl":null,"url":null,"abstract":"ABSTRACT A CEN technical report has been drafted by working group WG59 CEN/TC54 on how to determine no- and negligible creep temperature limits to support EN 13445-3 (Unfired Pressure Vessels - Part 3: Design). Presently the standard assumes “rule-of-thumb” values for no-creep temperatures of ferritic and austenitic steels, 375°C and 425°C correspondingly. It is thought well known that the lower ferritic grades could be creeping below the limit temperature and creep strength enhanced ferritic steels may show significant creep at temperatures well beyond it. Similarly, austenitic steels; nickel and other alloys are likely to have an even wider range of limit temperatures. This paper describes the data assessments and test methods used to determine limit temperatures for a specific set of steels and comparisons are made to other standards and nuclear design codes. The new approaches promote iso-stress testing in the low temperature range and apply Wilshire equation assessments on historical data.","PeriodicalId":49877,"journal":{"name":"Materials at High Temperatures","volume":"495 1","pages":"668 - 677"},"PeriodicalIF":1.0000,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials at High Temperatures","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1080/09603409.2022.2135735","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 1
Abstract
ABSTRACT A CEN technical report has been drafted by working group WG59 CEN/TC54 on how to determine no- and negligible creep temperature limits to support EN 13445-3 (Unfired Pressure Vessels - Part 3: Design). Presently the standard assumes “rule-of-thumb” values for no-creep temperatures of ferritic and austenitic steels, 375°C and 425°C correspondingly. It is thought well known that the lower ferritic grades could be creeping below the limit temperature and creep strength enhanced ferritic steels may show significant creep at temperatures well beyond it. Similarly, austenitic steels; nickel and other alloys are likely to have an even wider range of limit temperatures. This paper describes the data assessments and test methods used to determine limit temperatures for a specific set of steels and comparisons are made to other standards and nuclear design codes. The new approaches promote iso-stress testing in the low temperature range and apply Wilshire equation assessments on historical data.
期刊介绍：
Materials at High Temperatures welcomes contributions relating to high temperature applications in the energy generation, aerospace, chemical and process industries. The effects of high temperatures and extreme environments on the corrosion and oxidation, fatigue, creep, strength and wear of metallic alloys, ceramics, intermetallics, and refractory and composite materials relative to these industries are covered.
Papers on the modelling of behaviour and life prediction are also welcome, provided these are validated by experimental data and explicitly linked to actual or potential applications. Contributions addressing the needs of designers and engineers (e.g. standards and codes of practice) relative to the areas of interest of this journal also fall within the scope. The term ''high temperatures'' refers to the subsequent temperatures of application and not, for example, to those of processing itself.
Materials at High Temperatures publishes regular thematic issues on topics of current interest. Proposals for issues are welcomed; please contact one of the Editors with details.
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