On the use of miniaturized ct specimens for fracture toughness characterization of RPV materials: PVP2016-63607

Research output: Contribution to report/book/conference proceedingsIn-proceedings paper

Institutes & Expert groups

  • Tractebel - Engie

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Abstract

The tendency to reduce specimen size for fracture toughness characterization of structural materials is gaining a spectaculair interest in particular for irradiated materials. Indeed, the miniaturized compact tension (mini-CT) with a size of 10x10x4.2 mm is becoming very popular. With such a small volume, a large number of mini CT specimens can be extracted from broken Charpy impact specimens and therefore mlakes this geometry very attractive and consequently several round robin exercises are organized to quality this geometry. SCK•CEN has gained a lot of experience since the first usage of this geometry more than a decade ago. This geometry was qualified and tested in both unirradiated as well as irradiated condition. This paper overviews the SCK•CEN experience using the mini-CT geometry for fracture toughness characterization. In particular, it discusses the reliability of this geometry in comparison to large specimens such as the precracked Charpy and compares the advantages and limitations of such a geometry to derive some recommendation.

Details

Original languageEnglish
Title of host publicationProceedings of the ASME 2016 Pressure Vessels and Piping Conference
Subtitle of host publicationPVP2016
Place of PublicationVancouver, British Columbia
PublisherPVP - Pressure Vessels & Piping Conference
PagesV01BT01A014
Number of pages10
Volume1B
EditionCodes and Standards
ISBN (Print)978-0-7918-5036-7
StatePublished - 14 Jul 2017
Event2016 - ASME - Pressure Vessels and Piping Conference - Vancouver BC, Canada

Conference

Conference2016 - ASME - Pressure Vessels and Piping Conference
Abbreviated titlePVP2016
CountryCanada
CityVancouver BC
Period2016-07-172016-07-21
Internet address

Keywords

  • Miniature C(T) specimens, fracture toughness, RPV steel

ID: 2831017