SYMPOSIA PAPER Published: 01 January 1993
STP24782S

Influence of Phosphorus on Thermal and Neutron Embrittlement of Pressure Vessel Steels

Source

In conjunction with an international study coordinated by the International Atomic Energy Agency (IAEA), a review was made of three Japanese model steels with different phosphorus and copper contents irradiated at 5.1019 n ∙ cm-2 (E > 1 MeV) to explain the influence of phosphorus on the thermal and neutron embrittlement of steels.

The results obtained show an important phosphorus effect on radiation hardening and embrittlement in the low-copper steels, an appreciable embrittlement after thermal segregation of phosphorus due to a change in fracture mode from cleavage to intergranular, and a radiation hardening and embrittlement of the same order of magnitude on the segregated steel for irradiation effect.

Author Information

Soulat, PE
Service de Recherches Métallurgiques Appliquées (SRMA). Centre d'Etudes de Saclay, Gif-sur-Yvette, France
Miannay, D
Service d'Analyse des Matériels et des Systèmes (SAMS), Centre D'Etudes Nucléaires de Fontenay, Fontenary aux Roses, France
Horowitz, H
Service d'Analyse des Matériels et des Systèmes (SAMS), Centre D'Etudes Nucléaires de Fontenay, Fontenary aux Roses, France
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Details
Developed by Committee: E10
Pages: 283–299
DOI: 10.1520/STP24782S
ISBN-EB: 978-0-8031-5228-1
ISBN-13: 978-0-8031-1478-4