Microstructure Characterization on Mg-2Nd-4Zn-1Zr alloy During Heat treatment
The microstructures of Mg-2Nd-4Zn-1Zr alloy in the as-cast and after heat treatment were investigated.Several kinds of secondary phases were found and characterized by transmission electron microscopy (TEM),scanning electron microscopy (SEM),X-ray diffraction (XRD).In the as-cast alloy,the existing eutectic compounds are Mg-Nd-Zn temary phases:T phases and W phases.After the heat treatment,with the temperature and time increasing,it was found that T phase almost dissolved into the α-Mg matrix,while a large amount of W phase remain in the matrix.On the other hand,with the time prolonged,the morphology of the phase changed from continuous network to the spherical shape along the grain boundary.The density of the W phases gradually decreased and fimally coarsened and stabilized in the treatment process.
Mg-Nd-Zn alloy heat treatment microstructure T phase W phase
Liang Minjie Lial Haihong Ding Wenjiang Peng Liming Fu Penghuai
School of Material Science and Engineering, North University of China Taiyuan 030051, China; Nationa School of Material Science and Engineering, North University of China Taiyuan 030051, China National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shan
国际会议
上海
英文
60-60
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）