Segregation to Surfaces in Irradiated Stainless Steels

EP Simonen; RH Jones; ER Bradley

doi:10.1520/STP24657S

SYMPOSIA PAPER Published: 01 January 1990

STP24657S

Segregation to Surfaces in Irradiated Stainless Steels

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An irradiated 316 (UNS S31600) stainless steel (SS) alloy consistently showed phosphorus segregation to surfaces at temperatures in which thermal segregation is negligible. Phosphorus segregation did not occur in other irradiated 300 series alloys examined. The segregation model of Lam et al. was used to show that interstitial-solute binding and migration is a likely mechanism for the measured irradiation-induced phosphorus segregation. Surface segregation of sulfur was observed but the segregation mechanism was not established. Segregation of other impurities such as silicon and nitrogen or alloying elements such as chromium were not observed.

Author Information

Simonen, EP

Pacific Northwest Laboratory, Richland, WA

Bradley, ER

Sandvik Special Metals Corporation, Kennewick, WA

Jones, RH

Pacific Northwest Laboratory, Richland, WA

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Details

Developed by Committee: E10

Pages: 411–423

DOI: 10.1520/STP24657S

ISBN-EB: 978-0-8031-5112-3

ISBN-13: 978-0-8031-1266-7

Segregation to Surfaces in Irradiated Stainless Steels

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