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Abstract

An extensive experimental research programme was jointly carried out by Creusot-Loire Industrie and the Belgian Welding Institute on an industrial heat of a quenched and tempered vandadium alloyed high-strength steel (E500) as well as on a comparable experimental heat in order to evaluate the reheat cracking succeptibility and further to study the mechanism of reheat cracking. The results are presented and discussed in this report. Reheat cracking (RC) or stress relief cracking (SRC) is defined as intergranular cracking along the prior austenite grain boundaries (PAGB) in the heat-affected zone (HAZ) or in the weld metal that occurs during the exposure of welded assemblies to the elevated temperatures produced by postweld heat treatments (PWHT) or high-temperature service. This type of cracking in welded structures has received considerable attention since the mid-1960s. The widely accepted theories cannot explain the high susceptiblity to reheat cracking in these modern high-strength low alloy steels with low carbon content and of very high purity.

Additional information

Authors: VINCKIER A, Belgish Instituut voor Lastechniek, Lab Soete Voor Weerstand van Materialen en Lastechniek, Gent (BE);JUBIN L, Belgish Instituut voor Lastechniek, Lab Soete Voor Weerstand van Materialen en Lastechniek, Gent (BE);DHOOGE A, Belgish Instituut voor Lastechniek, Lab Soete Voor Weerstand van Materialen en Lastechniek, Gent (BE);BOURGES, Belgish Instituut voor Lastechniek, Lab Soete Voor Weerstand van Materialen en Lastechniek, Gent (BE)
Bibliographic Reference: EUR 15576 EN (1996) 71pp., FS, ECU 10.00
Availability: Available from the (2)
ISBN: ISBN 92-827-6166-5
Record Number: 199410269 / Last updated on: 1995-03-21
Category: PUBLICATION
Original language: en
Available languages: en