Identification and analysis of a reverse dynamic strain ageing in welded joints of C-Mn steels in the secondary circuit welds of nuclear power plants
MOTTAY, W.
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
FRAMATOME
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Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
FRAMATOME
MOTTAY, W.
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
FRAMATOME
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
FRAMATOME
PERRIN-PELLEGRINO, Carine
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
MAUGIS, P.
Aix-Marseille Université - Faculté des Sciences [AMU SCI]
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
< Reduce
Aix-Marseille Université - Faculté des Sciences [AMU SCI]
Institut des Matériaux, de Microélectronique et des Nanosciences de Provence [IM2NP]
Language
en
Article de revue
This item was published in
Scripta Materialia. 2024-07-01, vol. 247, p. 116099
Elsevier
English Abstract
In an original way, we exploit a restricted region within the dynamic strain ageing domain where a simultaneous increase in strength and uniform elongation has been shown, with increasing free solute concentrations. This ...Read more >
In an original way, we exploit a restricted region within the dynamic strain ageing domain where a simultaneous increase in strength and uniform elongation has been shown, with increasing free solute concentrations. This unusual reverse dynamic strain ageing was shown to be a marker of the interaction between strain ageing and strain hardening. Analysis, based on a dual experimental and theoretical approach, shows that dynamic strain ageing reduces the ability of the material to exhibit dynamic recovery. This regime operates at very low solute concentrations and saturates above a critical solute concentration. All the results obtained support the dislocations/solutes interactions as the main mechanism.Read less <
English Keywords
Steel
Weld
Nuclear power plant
Strain-aging
Work-hardening
Origin
Hal imported