Title: Work Softening Behaviour in a Cold Drawn Oxygen-Free High Conductivity Copper for Fusion Reactor Use
Authors: PIATTI GiovanniWEIR Henry
Citation: Journal of Nuclear Materials vol. 150 p. 1-9
Publication Year: 1987
JRC N°: JRC5085
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC5085
Type: Articles in periodicals and books
Abstract: TENSILE TESTS WERE CARRIED OUT IN COLD DRAWN OXYGEN-FREE HIGH CONDUCTIVITY COPPER IN THE TEMPERATURE RANGE OF 20-450 DEGREES IN ORDER TO GENERATE STRENGTH DATA FOR FUSION TECHNOLOGY APPLICATIONS. THE RATE OF DECREASE IN THE FLOW STRESS, BOTH OF THE YIELD AS WELL AS OF THE ULTIMATE STRESS, WITH INCREASING TEMPERATURE, SHOWED A LARGE INCREASE IN THE TEMPERATURE RANGE OF 250 TO 350 DEGREES. THIS IS ASCRIBED TO WORK SOFTENING WHICH IS ASSOCIATED WITH PROGRESSIVE RECRYSTALLIZATION CONCURRENT WITH DEFORMATION. THE MICRO- STRUCTURE OF THE SAMPLES DEFORMED AT 400 DEGREES WAS FOUND TO BE COMPLETELY RECRYSTALLIZED AND THE FRACTURE MODE WAS FOUND TO BE DUCTILE OVER THE ENTIRE RANGE OF TEST TEMPERATURES
JRC Directorate:Joint Research Centre Historical Collection

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