Microstructure Evolution of 1100 Al Alloy Multi-foils during Ultrasonic Additive Manufacturing

摘要：

　　Multi-annealed 1100 Al alloy foils were welded to form monolithic samples using the ultrasonic additive manufacturing (UAM) process at room temperature.40%,60%,80% of the oscillation amplitudes were investigated at 20 kHz frequency and a constant contact pressure.Deformed microstructures were analyzed using low-resolution electron backscattered diffraction (EBSD).Evolution of fine equiaxed grains from an initial coarser grain structure was observed in the volume of Al alloy foils,and the extent of the grain refinement is proportion to oscillation amplitude.Additionally,the orientation image maps (OIM),polar figures (PF),and orientation distribution functions (ODF) of the samples are obtained.The characteristics of the crystallographic orientation were analyzed to find the effect of ultrasonic amplitude on the microtexture of the matrix material.

作者: Hongjun Ji Junzhao Wang Mingyu Li

作者单位: Shenzhen Key Laboratory of Advanced Materials,Shenzhen Graduate School,Harbin Institute of Technolog Shenzhen Key Laboratory of Advanced Materials,Shenzhen Graduate School,Harbin Institute of Technolog

会议类型: 国际会议

会议名称: 2012 International Conference on Electronic Packaging Technology & Hiigh Pachaging(2012电子封装和高密度封装国际会议(ICEPT-HDP2012))

会议地点: 桂林

会议语种:英文

页码: 1586-1589

在线出版日期: 2012-08-13（万方平台首次上网日期，不代表论文的发表时间）