Effect of phosphorus on the microstructure of an FE-16CR-17NI austenitic ternary induced by fast neutron irradiation

Hideo Watanabe, Takeo Muroga, Naoaki Yoshida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

The effects of phosphorus on void swelling in austenitic stainless steels under fast neutron irradiation have been investigated. Three model alloys (Fe-16Cr-17Ni, Fe-16Cr-17Ni-0.024P, Fe-16Cr-17Ni-0.1P) were irradiated to 40 dpa in the Fast Flux Test Facility (FFTF) using Materials Open Test Assembly (MOTA). The irradiation temperatures were 679K, 793K and 873K. Addition of phosphorus resulted in a suppression in void swelling at all temperatures. At the higher temperatures (793K and 873K), radiation enhanced formation of M2P-type phosphides were observed. These phosphides are expected to act as strong defect sinks, causing suppression of void swelling at these temperatures. On the other hand, at the lower temperature (679K), the suppression of void swelling appeared to be related to the reduction of vacancy mobility by phosphorus addition.

Original languageEnglish
Title of host publicationASTM Special Technical Publication
EditorsArvind S. Kumar, David S. Gelles, Randy K. Nanstad, Edward A. Little
PublisherPubl by ASTM
Pages951-963
Number of pages13
Edition1175
ISBN (Print)0803114885
Publication statusPublished - 1994
EventProceedings of the 16th International Symposium on Effects of Radiation on Materials - Aurora, CO, USA
Duration: Jun 23 1992Jun 25 1992

Other

OtherProceedings of the 16th International Symposium on Effects of Radiation on Materials
CityAurora, CO, USA
Period6/23/926/25/92

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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