Effect of the wetting of grain boundaries on the formation of a solid solution in the Al-Zn system
Effect of the wetting of grain boundaries on the formation of a solid solution in the Al-Zn system
复制标题
晶界润湿对Al-Zn系固溶体形成的影响
DOI：
10.1134/s0021364012180063
复制
发表时间：
2012
期刊：
影响因子：
1.3
通讯作者：
T. Czeppe
中科院分区：
文献类型：
--
作者：
O. Kogtenkova;B. Straumal;S. Protasova;A. Gornakova;P. Ziȩba;T. Czeppe
用差示扫描量热法和透射电镜研究了（al - 20wt % Zn）合金的体相和晶界相变。利用严重的塑性变形（高压扭转）获得了具有高比晶界面积的多晶。结果表明，锌基固相在200℃时完全润湿了铝的晶界。确定了晶界溶解度线（溶解度线）的位置，该位置高于体溶解度40 ~ 45k。
Phase transitions in the bulk and at grain boundaries in the (Al-20 wt % Zn) alloy have been studied by means of differential scanning calorimetry and transmission electron microscopy. Polycrystals with a high specific area of grain boundaries have been obtained using severe plastic deformation (high-pressure torsion). It has been shown that the Zn-based solid phase completely wets the grain boundaries in aluminum at a temperature of 200°C. The position of the grain boundary solvus line (solubility line), which is above the bulk solvus by 40–45 K, has been determined.