Radiation resistance of advanced ferritic-martensitic steel HCM12A

T. R. Allen, L. Tan, J. D. Tucker, J. Gan, G. Gupta, G. S. Was, S. Shutthanandan, S. Thevuthasan

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

2 Citations (Scopus)

Abstract

HCMI2A is an advanced 12 Cr ferritic-martensitic steel designed for higher temperature operation than could be achieved using earlier generation steels such as HT9. HCMI2A is one of the advanced alloys under consideration for application in core components in Generation IV nuclear energy systems, and is of particular interest to the supercritical water reactor, sodium fast reactor, and lead fast reactor designs. The radiation resistance of HCMI2A has not previously been studied. This work provides information on the hardening and microstructural changes in HCMI2A after irradiation using 2.0 MeV protons at 400°C to 10 dpa and 5 MeV Ni-ions at 500°C to 50 dpa. Following irradiation, changes in hardness were measured using Vickers hardness indentation, changes in microstructure and phase stability were studied using transmission electron microscopy, and changes in microchemistry were measured using scanning Auger microscopy. The hardness increases by roughly 70 % and saturates by roughly 5 dpa. The changes to the microstructure contributing to this hardness increase are primarily due to the formation of precipitate phases, with some contribution from changes in dislocation density. Chromium is enriched at grain boundaries prior to irradiation, likely due to grain boundary carbides, and increases further during the irradiation.

Original languageEnglish
Title of host publicationASTM Special Technical Publication
PublisherAmerican Society for Testing and Materials
Pages135-147
Number of pages13
Volume1475 STP
ISBN (Print)0803134010, 9780803134010
Publication statusPublished - 2006
Externally publishedYes
Event22nd Symposium on Effects of Radiation on Materials - Boston, MA
Duration: 8 Jun 200410 Jun 2004

Other

Other22nd Symposium on Effects of Radiation on Materials
CityBoston, MA
Period8/6/0410/6/04

Fingerprint

Martensitic steel
Ferritic steel
Irradiation
Radiation
Fast reactors
Hardness
Grain boundaries
High temperature operations
Microstructure
Phase stability
Vickers hardness
Steel
Chromium
Dislocations (crystals)
Indentation
Nuclear energy
Carbides
Hardening
Protons
Precipitates

Keywords

  • Ferritic-martensitic steel
  • Microstructure
  • Radiation
  • Segregation

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Allen, T. R., Tan, L., Tucker, J. D., Gan, J., Gupta, G., Was, G. S., ... Thevuthasan, S. (2006). Radiation resistance of advanced ferritic-martensitic steel HCM12A. In ASTM Special Technical Publication (Vol. 1475 STP, pp. 135-147). American Society for Testing and Materials.

Radiation resistance of advanced ferritic-martensitic steel HCM12A. / Allen, T. R.; Tan, L.; Tucker, J. D.; Gan, J.; Gupta, G.; Was, G. S.; Shutthanandan, S.; Thevuthasan, S.

ASTM Special Technical Publication. Vol. 1475 STP American Society for Testing and Materials, 2006. p. 135-147.

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

Allen, TR, Tan, L, Tucker, JD, Gan, J, Gupta, G, Was, GS, Shutthanandan, S & Thevuthasan, S 2006, Radiation resistance of advanced ferritic-martensitic steel HCM12A. in ASTM Special Technical Publication. vol. 1475 STP, American Society for Testing and Materials, pp. 135-147, 22nd Symposium on Effects of Radiation on Materials, Boston, MA, 8/6/04.
Allen TR, Tan L, Tucker JD, Gan J, Gupta G, Was GS et al. Radiation resistance of advanced ferritic-martensitic steel HCM12A. In ASTM Special Technical Publication. Vol. 1475 STP. American Society for Testing and Materials. 2006. p. 135-147
Allen, T. R. ; Tan, L. ; Tucker, J. D. ; Gan, J. ; Gupta, G. ; Was, G. S. ; Shutthanandan, S. ; Thevuthasan, S. / Radiation resistance of advanced ferritic-martensitic steel HCM12A. ASTM Special Technical Publication. Vol. 1475 STP American Society for Testing and Materials, 2006. pp. 135-147
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