It has been found that the high strength is attributed to the metastable icosahedral quasicrystal phase embedded in the a-Al matrix, which has been confirmed to be still stable at 803 K under the pressure of 1.2 GPa. 合金获得超高强度主要是由于亚稳态二十面体准晶相在803K和1.2GPa条件下仍稳定存在,对α-Al基体起强化作用。
Frank-Kasper phase, with an icosahedral close-packed structure, Mg_ ( 32)( Al, Zn)_ ( 49), is considered as the 1/ 1 approximant phase analogous to its icosahedral quasicrystal. Frank-Kasper相Mg32(Al,Zn)49是与其准晶相相对应的1/1近似相,它具有二十面体壳层密堆结构。
Crystallization thermodynamics of Al-Mn icosahedral quasicrystalline phase has been studied by DSC measurements and quantitative X& ray diffraction analysis. 通过DSC测量和X光衍射定量相分析,研究了Al-Mn准晶二十面体相(Ⅰ相)晶化转变的热力学;
Above 700K, we found the transition from body-center cubic phase into icosahedral phase. 在高于700K温度退火,在二次电子成像中明显发现了体心立方相和二十面体相的转变过程。
Thermodynamic Functions and Binding Energy of Icosahedral Quasicrystalline Phase Al-Mn准晶Ⅰ相的热力学特性函数与结合能
Thermodynamic analyses on solidification process of primary Al-Cu-Fe icosahedral quasicrystal phase Al-Cu-Fe系初生准晶相凝固过程的热力学分析
The effect of Mn on formation of three-dimension spherical icosahedral quasicrystal phase in Mg-based master alloy has been discussed. 讨论了Mn对镁基准晶中间合金中三维二十面体球形准晶相形成过程的影响。
Indexing of electron diffraction pattern of icosahedral phase in Al-Mn alloy Al-Mn合金中Ⅰ相电子衍射图指标化
Influence of the ingot solidification microstructure on the formation kinetics of icosahedral quasicrystalline phase during the crystallization of the corresponding amorphous alloy 铸锭凝固组织对相应非晶合金晶化过程中二十面体准晶相形成动力学的影响
In this paper we explain the probability of existence on the body-center cubic and icosahedral phase and the transforming process. 文中解释了体心立方相和二十面体相共存的可能性和相转变的过程。