Correlation Between Microhardness, Tensile Properties, and Notch Ductility of Irradiated Ferritic Steels
| Autor: | JF Mancuso, JR Holland, RP Shogan, J.A. Spitznagel |
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| Rok vydání: | 2009 |
| Předmět: | |
| DOI: | 10.1520/stp28204s |
| Popis: | The work demonstrates that changes in Charpy V-notch impact properties can be monitored by microhardness measurements for radiation-embrittled ferritic steels in the transition region. A qualitative basis for understanding this relationship is developed from extension of existing models for lower-shelf fracture toughness and analysis of the shifts in the ductile-to-brittle transition temperature with changes in the yield strength. Microhardness is shown to correlate with the yield stress of the irradiated ferritic materials described in this report. A comparison of Charpy energy and yield stress data suggests that, for the purposes of this analysis, the fracture stress is insensitive to both irradiation and annealing in the transition region. |
| Databáze: | OpenAIRE |
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