Effect of Precipitates on Recrystallization of Cu-Ni-Si Alloy
By analyzing the change of micro-hardness, electric conductivity and microstructure of Cu-Ni-Si alloy during aging, the interaction between precipitates and recrystallization was studied. Results show that, precipitates in the early aging can strongly prevent recrystallization. When aging at low temperature as 450℃, 550℃, recrystallization in site happened. Precipitates grew under the condition of volume fraction increasing a little or unchanging. There was no peak in curves of electric conductivity. But there was peak in the curves of micro-hardness. When aging at high temperature as 750 ℃, discontinuous recrystallization happened. Precipitates grew under the condition of volume fraction decreasing a little. There appeared peak in curve of electric conductivity . However, micro-hardness decreased continuously.
Cu-Ni-Si alloy precipitation recrystallization micro-hardness electric conductivity
WANG Ding-jiang TU Ming-wu SHENG Song-ke WANG Dong-feng
Second Department Of the First Aeronautic Institute of Air Force.Xinyang,464000,China Ministry of Education Key Laboratory of Materials Modification by Laserjon and Electron Beams,Dalian
国际会议
The Fourth Asian Conference on Heat Treatment and Surface Engineering(第四届亚洲热处理及表面工程大会)
北京
英文
208-212
2009-10-27（万方平台首次上网日期，不代表论文的发表时间）