Effect of heat treatment on residual stress fields in cladded steel tube header sheets of reactor pressure vessels

• Type: Article in International Conference Proceedings Book
• Date: 2010

Authors

Maria José Marques (Author) FEUP; A. C. Batista (Author) Other; J. Kornmeier (Author) Other; A. Loureiro (Author) Other

Conference proceedings National

Title: CNME2010 – Congresso Nacional de Mecânica Experimental

Pages: 1-6

CNME2010 - Congresso Nacional de Mecânica Experimental

Guimarães, Portugal, 21-23 Abril 2010

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences > Engineering > Materials engineering ; Technological sciences > Engineering > Mechanical engineering

Other information

Resumo (PT): The aim of the work is to study the effect of the heat treatment temperature on the relaxation of residual stresses of the heat affected zone of cladded tube header sheets where cracking events are common. Three square pieces were removed from a plate of EN 10028-2-P355 QH carbon steel and cladded with a stainless steel filler metal, by submerged arc welding, in one of the faces. Three layers were deposited. Following the cladding process two of the three coupon plates were submitted to different post welding heat treatments: one at 620 ºC for an holding time of 1 hour and the other at 540 ºC for a period of ten hours. The residual stresses in-depth profiles were determined by neutron diffraction, before and after the heat treatment.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6