Critical Analysis of Results from the ASTM Round-Robin on Reconstitution

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

Authors

Institutes & Expert groups

  • ORNL - Oak Ridge National Laboratory
  • JAERI - Japan Atomic Energy Research Institute - Reactor Component Reliability Laboratory
  • Framatome Technologies Inc.

Documents & links

DOI

Abstract

In 1992, ASTM initiated a Round-Robin on Reconstitution (RRR) to contribute the review of the ASTM E1253 Guide on Charpy reconstitution. The purpose of this RRR was to study the influence of parameters, such as the reconstitution technique, the insert length, the hammer tup geometry and the material. Ten laboratories participated in the RRR and performed Charpy reconstitution according to a pre-defined test matrix. Comparison of the absorbed energy and lateral expansion before and after reconstitution demonstrates that the loss due to reconstitution can be characterized by the combination of the welding method and the tup geometry used. In general, stud and upset-butt welding combined with the ASTM tup show the highest difference in energy whereas electron­beam welding with the ISO tup indicates the least. The variations among welding techniques and laboratories are also described. The recorded instrumented Charpy signals establish the load diagram that forms the basis of an enhanced surveillance methodology for plant life management. It is concluded that reconstitution does not affect any characteristic loads in the instrumented load-time traces.

Details

Original languageEnglish
Title of host publicationSmall Specimen Test Techniques
Place of PublicationPhiladelphia, PA, USA
PublisherASTM International
Pages383–410
Number of pages28
VolumeE10
EditionSTP38001S
ISBN (Electronic)978-0-8031-5565-7
ISBN (Print)978-0-8031-2476-9
DOIs
Publication statusPublished - 1 Jan 1998
Event1997 - ASTM Small Specimen Test Techniques - New Orleans, United States
Duration: 1 Jan 19971 Jan 1997

Publication series

NameASTM STP
PublisherASTM
NumberSTP38001S

Conference

Conference1997 - ASTM Small Specimen Test Techniques
Country/TerritoryUnited States
CityNew Orleans
Period1997-01-011997-01-01

Keywords

  • Surveillance, Charpy, Reconstitution, Absorbed energy, Welding techniques, Instrumented Charpy impact test, Load Diagram

ID: 7730042