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Proceedings Paper

Residual stresses in a ferritic steel welded pipe: an experimental comparison between reactor and pulsed neuron sources
Author(s): Gianni Albertini; D. Brugnami; Giovanni Bruno; M. Ceretti; F. M. Cernuschi; Lyndon Edwards
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Paper Abstract

Residual stresses induced by welding processes can affect the integrity of structural components like tubes and pipes of thermoelectric power plants. In order to reduce or cancel these stresses, welded components are often heat treated. The residual stress field in an arc-welded 2.25Cr1Mo ferritic steel pipe was measured using neutron diffraction both before and after stress relieving heat treatment. In the first stage stresses were measured using two different kinds of neutron sources: a reactor and a pulsed one. A comparison between results obtained using G5.2 diffractometer at LLB and ENGIN equipment at ISIS will be outlined and the effectiveness of heat treatment will be shown.

Paper Details

Date Published: 27 February 1997
PDF: 4 pages
Proc. SPIE 2867, International Conference Neutrons in Research and Industry, (27 February 1997); doi: 10.1117/12.267881
Show Author Affiliations
Gianni Albertini, Univ. di Ancona and INFM (Italy)
D. Brugnami, Univ. di Ancona and INFM (Italy)
Giovanni Bruno, Univ. di Ancona and INFM (Italy)
M. Ceretti, Lab. Leon Brillouin (France) and INFM (Italy)
F. M. Cernuschi, ENEL SpA (Italy)
Lyndon Edwards, Open Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 2867:
International Conference Neutrons in Research and Industry
George Vourvopoulos, Editor(s)

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