Characteristic of Semi-Solid ZCuSn10 Alloy During Isothermal Compression Deformation

摘要：

　　In order to research the characteris tic of semi-solid ZCuSnl0 alloy during isothermal compression, the compression deformation experi ments are carried out using Gleeble-1500 thermo mechanical simulator with specimens of semi-solid ZCuSnl0 alloy prepared by SIMA (strain induced melt activation) process.In the isothermal compres sion deformation experiments, the original structure of ZCuSnl0 alloy specimens is different, the deform ation temperature is different, and strain is 0.2, strain rate is 1s-1.The experimental results show that the deformation resistance of ZCuSn10 alloy in semi-solid state decreases with deformation temper ature increasing or solid fraction of original struc ture decreasing.When strain changes from 0 to a bout 0.1, stress surges with strain increasing, the semi-solid ZCuSn10 alloy is in quasi-dastic de formation stage in this process.Next, strain goes on increasing, the stress gradually decreases, the semi -solid ZCuSn10 alloy is subjected to plastic deform ation.The experimental results indicate also that difficult deformation zone and large degree deforma tion zone and free deformation zone clearly appear in samples of isothermal compression deformation.The microstructure of difficult deformation zone is similar to original structure of semi-solid ZCuSn10 alloy, main deformation mechanism is FLS (flow of liquid incorporating solid partides) mechanism.In large degree deformation zone, solid particles obvi ously separate from liquid phase, then touch each other and deform, PDS (plastic deformation of solid particles) mechanism is the main deformation mech anism.More liquid phase, holes and cracks are ob served in free deformation zone, main deformation mechanism is LF (liquid flow) and FLS mechanism.

关键词： ZCuSn10 alloy semi-solid isothermal compression deformation deformation characteristic

作者: Jia Wang Han Xiao Long-biao Wu De-hong Lu Rong-feng Zhou Rong Zhou

作者单位: Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming,Ch Faculty of Materials Science and Engineering,Kunming University of Science and Technology,Kunming,Ch

会议类型: 国际会议

会议名称: The 12th China-Russia Symposium on Advanced Materials and Technologies(第十二届中俄双边新材料新工艺国际会议)

会议地点: 昆明

会议语种:英文

页码: 565-570

在线出版日期: 2013-11-19（万方平台首次上网日期，不代表论文的发表时间）