Determination of neutron irradiation-induced phosphorus segregation on grain boundaries in a P-doped 2.25Cr1Mo steel

SH Song, RG Faulkner, PEJ Flewitt, DD Shen, J Liu, ZX Yuan

Research output: Contribution to journalArticle (Academic Journal)peer-review

1 Citation (Scopus)

Abstract

Irradiation-induced impurity segregation to grain boundaries is one of the important radiation effects on materials. For this reason, phosphorus segregation to prior austenite grain boundaries in a P-doped 2.25Cr1Mo steel subjected to neutron irradiation is examined using field emission gun scanning transmission electron microscopy (FEGSTEM) with energy dispersive X-ray microanalysis (EDX). The steel samples are irradiated around 270 and 400degreesC, respectively. The irradiation dose rate and dose are similar to1.05x10(-8) dpa/s and similar to0.042 dpa respectively for 270degreesC irradiation, and 1.7x10(-8) dpa/s and 0.13 dpa respectively for 400degreesC irradiation. The FEGSTEM results indicate that there is no apparent phosphorus segregation during 270degreesC irradiation but there is some during 400degreesC irradiation.
Translated title of the contributionDetermination of neutron irradiation-induced phosphorus segregation on grain boundaries in a P-doped 2.25Cr1Mo steel
Original languageEnglish
Pages (from-to)81 - 85
Number of pages5
JournalJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
Volume20 (1)
Publication statusPublished - 2004

Bibliographical note

Publisher: JOURNAL MATER SCI TECHNOL, SHENYANG

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