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Summary:
The nature of the irradiation embrittlement phenomenon in selected austenitic superalloys was evaluated in tubular specimens compression tested at elevated temperatures. Materials included the commercial alloys Inconel 706 and Nimonic PE-16 and two experimental alloys. All are precipitation hardenable and were irradiated from 2.8 to 7.1 ¿̐ư 1022 n/cm2 (E>0.1MeV). The tests revealed marked ductility losses in all alloys, the most severe embrittlement occurring at 110¿̐ưC above the temperature at which the materials were irradiated. In some instances, zero ductility was recorded. The testing further revealed that short-term post-irradiation heat treatments produced moderate to high levels of ductility recovery without significant losses in strength.
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Reproduction Note:
Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1982. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.
