pISSN : 1598-706X / eISSN : 2288-8381
한국주조공학회지 (28권2호 64-68)
Effects of Minor Alloying Elements on the Microstructure and Mechanical Properties of High Conductivity Cu-Mg-P Base Alloys
Cu-Mg-P계 고전도성 합금의 미세조직 및 기계적 성질에 미치는 미량합금원소의 영향
Jeong-Min Kim, Joon-Sik Park, ki-tae Kim*, Hyun-Gil Kim**
Hanbat National University, *Korea Institute of Industrial Technology, **Korea Atomic Energy Research Institute
The microstructure of Cu-Mg-P base alloys were significantly affected by small amounts of Fe and Co additions, however the tensile properties and electrical conductivity of the Cu alloys were mainly determined by the fabrication process. Relatively high electrical conductivity (> 80% IACS) was obtained in the all Cu-Mg-P based alloys when they were finally aged at 480℃. Tensile properties could be significantly enhanced by final cold rolling, especially at extremely low temperatures. Softening of cold-rolled alloys took place at about 450℃ owing to recovery and recrystallization, but it was delayed up to 500℃ in the Fe-added alloy.
Cu alloy Precipitate Conductivity Mechanical properties
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