中国铸造2007，Vol.4Issue(2)：116-119,4.
Effect of pulse magnetic field on solidification structure and properties of pure copper
Effect of pulse magnetic field on solidification structure and properties of pure copper
摘要
Abstract
The application of pulse magnetic field to metal solidification is an advanced technique which can remarkably refine solidification structure. In this paper, the effect of pulse magnetic field on solidification structure,mechanical properties and conductivity of pure copper was experimentally investigated. The results showed that the solidification structure transformed from coarse columnar crystal to fine globular crystal with increasing pulse voltage.Increasing pulse voltage also improved the tensile strength. However, with the increase of pulse voltage, the elongation and electrical resistivity firstly decreased, then increased when the pulse voltage beyond a critical value. Moreover,in some conditions, pulse magnetic field can simultaneously improve the conductivity and mechanical property of pure copper.关键词
pure copper/pulse magnetic field/solidification structure/propertyKey words
pure copper/pulse magnetic field/solidification structure/property分类
矿业与冶金引用本文复制引用
LIAO Xi-liang,GONG Yong-yong ,LI Ren-xing ,CHEN Wen-jie ,ZHAI Qi-jie..Effect of pulse magnetic field on solidification structure and properties of pure copper[J].中国铸造,2007,4(2):116-119,4.基金项目
The projects was supported by the Pre-research Foundation of the National Basic Research Program (973 Program, grant No.2004CCA07000) and the Science and Technology Committee of Shanghai Municipality (Grant No. 04XD14008). （973 Program, grant No.2004CCA07000）
