Irradiation Hardening in Ferritic/Martensitic Steel P92 during Ar-Ions Irradiation at Elevated Temperature

Abstract:

The irradiation hardening behavior in a commercial ferritic/martensitic steel P92 has been investigated through 250KeV Ar-ions irradiations to a dose of 10dpa at 473, 673 and 973K combined with nanoindentation techniques. The results show that irradiation-induced hardening was observed at the all irradiation temperatures. There appear to have no previous reports of the irradiation-induced hardening at the temperature higher than 873K in ferritic/martensitic steels. Irradiation-induced hardening at elevated temperature of 973K has been found, for the first time, in ferritic/martensitic steel. The irradiation-induced hardening at 973K in the ferritic/martensitic steel P92 may be ascribed to the defects in the steel generated by Ar-ions irradiation.

• Periodical: Applied Mechanics and Materials (Volume 378)
• Pages: 289-292
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.378.289
• Online since: August 2013
• Authors: Jun Zhu, Yin Zhong Shen
• Keywords: Elevated Temperature, Irradiation Hardening, Nanoindentation, P92 Steel

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