Effects of Pb-17Li on the Tensile Properties of Steels

MOLTEN PB-17LI IS A CANDIDATE TRITIUM BREEDING MATERIAL TO BE USED IN CONJUN- CTION WITH STRUCTURAL MATERIALS SUCH AS STEELS. EXPERIMENTS HAVE BEEN CARRIED OUT IN ORDER TO VERIFY IF THERE IS AN L.M.E. EFFECT WHEN SOME OF THE CANDIDATE STRUCTURALS ARE USED IN PRESENCE OF PB-17LI. THE STEELS TESTED WERE: THE AISI 316 EUROPEAN REFERENCE STEEL FOR FUSION REACTOR RESEARCH, THE FERRITIC (MARTEN- SITIC) NET REFERENCE STEEL DIN 1.4914 AND THE J.R.C. ISPRA HIGH MANGANESE STEEL AMCR. TENSILE TESTS, AT VARIOUS STRAIN RATES, WERE ACCOMPLISHED IN PB-17LI AT 523 AND 573 K. AFTER THE EXPERIMENTS THE BROKEN SPECIMENS WERE SUBMITTED TO FRACTOGRAPHIC (S.E.M) AND METALLOGRAPHIC EXAMINATION (CROSS SECTIONS ALONG THE LENGTH OF THE RUPTURED SAMPLES). THE RESULTS ARE COMPARED TO SIMILAR TESTS CAR-RIED OUT IN VACUUM OR ARGON. SOME SAMPLES HAVE BEEN SUBMITTED TO CONSTANT LOA- DS, IN STATIC PB-17LI, UNDER VACUUM, FOR PERIODS OF 2500 H AT A TEMPERATURE OF 723 K. AFTER THE TESTS THE SPECIMENS WERE LONGITUDINALLY SECTIONED AND DIFFE- RENT CROSS SECTIONS MICROSCOPICALLY EXAMINED. THE STRESSED SAMPLES ARE COMPA- RED TO PLAIN SPECIMENS HEAT TREATED IN PB-17LI IN THE SAME EXPERIMENTAL CONDI- TIONS

COEN Vittorio;  ORECCHIA Luigi; 

1995-03-15

JRC5224

https://publications.jrc.ec.europa.eu/repository/handle/JRC5224,