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Abstract

AUSTENITIC STAINLESS STEELS IN WHICH NICKEL IS SUBSTITUTED BY MANGANESE, ARE CURRENTLY UNDER STUDY AS FUSION REACTOR STRUCTURAL MATERIALS BECAUSE THEY OFFER THE ADVANTAGE OF LOWER LONG TERM ACTIVATION, COMPARED TO CR-NI STEELS. IN ORDER TO ASSESS THE MECHANICAL BEHAVIOUR OF THE CR-MN STEELS UNDER NEUTRON IRRADIATION, TENSILE SAMPLES HAVE BEEN IRRADIATED IN A CENTRAL CORE POSITION OF THE HFR PETTEN AT TEMPERATURES OF 300, 450 AND 550 C UP TO THREE DIFFERENT FLUENCES, NAMELY 1,5 AND 10 DPA. DIFFERENT ALLOYS OF CR-MN STEELS HAVE BEEN INVESTIGATED. TWO HAVE A FULLY AUSTENITIC STRUCTURE, ONE OF THE TWO HAVING A 1.5% MO ADDITION. THE THIRD ALLOY STUDIED HAS A HIGHER CR AND MN CONTENT AND A VERY LOW CARBON AND NITROGEN CONTENT. POSTIRRADIATION TENSILE TESTING HAS BEEN CARRIED OUT BOTH AT IRRADIATION TEMPERATURE, AND AT ROOM TEMPERATURE, WITH THE SAME STRAIN RATE IN ALL EXPERIMENTS, I.E.1.0 E-3/S. ALL TESTS HAVE BEEN PERFORMED IN AIR.

Additional information

Authors: FENICI P JRC-ISPRA SCHEURER H JRC-PETTEN , JRC-ISPRA;JRC-PETTEN
Bibliographic Reference: PAPER PRESENTED: 3RD INTERNATIONAL CONFERENCE ON FUSION REACTOR MATERIALS, KARLSRUHE/D, OCT. 4-8, 1987, JOURNAL OF NUCLEAR MATERIALS, VOLS. 155-157, PP 947-952, 1988
Record Number: 1989126213000 / Last updated on: 1989-04-01
Category: PUBLICATION
Available languages: en