期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Thermal stability of nanocrystalline Mg-based alloys prepared via mechanical alloying 被引量:2
1
作者 M.RAJABI r.m.sedighi S.M.RABIEE 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2016年第2期398-405,共8页
Thethermal stability and the kinetics of grain growth of nanocrystalline Mg-6Al-1Zn and Mg-6Al-1Zn-1Si alloys prepared via mechanical alloying were investigated. It started with elemental powders, using a variety of a... Thethermal stability and the kinetics of grain growth of nanocrystalline Mg-6Al-1Zn and Mg-6Al-1Zn-1Si alloys prepared via mechanical alloying were investigated. It started with elemental powders, using a variety of analytical techniques including differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and energy dispersive spectrometry. The kinetics of grain growth in isothermal annealing was investigated. The XRD results show that, although the grain sizes of both material systems increase as the annealing temperature rises, the Si-containing system displays a relatively smaller grain size, i.e., 60 nm compared with 72 nm in Mg-6Al-1Zn system, after being exposed to 350 ℃ for 1 h. The second-phase intermetallic particle Mg2Si formed during the isothermal annealing of Mg-6Al-1Zn-1Si system could influence not only the activation energy but also the exponent of kinetic equation. Higher hardness values obtained in the Si-containing system would be due to the formation of Mg2Si intermetallic phase. 展开更多
关键词 Mg-based alloys thermal stability grain growth mechanical alloying
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部