在 L12-Ni3 (AlFe ) 阶段的原子反地点行为上的温度的效果用显微镜的阶段地被学习在 Ni75Al20Fe5 的降水进步的动态模型合金。随温度的增加, NiAl 和 AlNi 反地点的形成在 Ni3 (AlFe ) 是容易得多的结果表演,和 Ni 和艾尔反地点原子比 Fe 反地点原子显示出清楚地更强壮的温度依赖者。反地点原子的进化进步在 L12-Ni3 (AlFe ) 阶段的起始的生长阶段被完成。sublattice A 上的 Ni 原子的地点职业可能性(NiNi, FCC 的脸中心地点) ,并且 sublattice B 上的艾尔和 Fe 原子(AlAl 和 FeAl, FCC 的角落地点) 都介绍递减趋势,温度增加。Fe 原子主要喜欢在整个温度范围占据艾尔 sublattice。
The effects of temperature on atomic anti-site behaviors in L12-Ni3(AlFe) phases were studied using microscopic phase-field dynamic model in precipitation progress of Ni75Al20Fe5 alloy.The results show that with the increase of temperature,the formation of NiAl and AlNi anti-sites is much easier in Ni3(AlFe),and Ni and Al anti-site atoms show clearly stronger temperature-dependent than Fe anti-site atoms.The evolution progress of anti-site atoms is completed at the initial growth stage of L12-Ni3(AlFe) phases.The site occupation probabilities of Ni atoms on the sublattice A(NiNi,face centers sites of FCC),and Al and Fe atoms on the sublattice B(AlAl and FeAl,corners sites of FCC) all present the degressive tendency with the temperature increasing.Fe atoms mainly prefer to occupy the Al sublattice at the whole temperature range.