中国有色金属学会会刊(英文版)
中國有色金屬學會會刊(英文版)
중국유색금속학회회간(영문판)
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
2001年
6期
831-834
,共4页
孙占波%胡柱东%宋晓平%刘剑%杨森%李晓园%祝要民
孫佔波%鬍柱東%宋曉平%劉劍%楊森%李曉園%祝要民
손점파%호주동%송효평%류검%양삼%리효완%축요민
Liquid separation of Cu75Co25 and Cu85Co15 alloys at various supercoolings was investigated employing glass flux technology. The results reveal that during the course of isothermal processes, liquid separation develops more fully than in the continuous cooling, which results in more and larger particles. Further thermodynamic analyses indicate that primary dendrites from liquid separation are inclined to remelt in Cu liquid and finally the dendrites shrink locally, or even break into fragments. The fragments clash each other and grow into larger Co-rich particles due to electromagnetic force. It is also showed that at constant temperature whether Co-rich particles solidify depends on the develop level of the liquid separations. Co-rich liquid droplets begin to solidify when the component of Co-rich liquid reaches the solidus.
