Calculation of Nb Ordering Occupation in TiAl+Nb System
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摘要: 運用原子間相互作用的對勢模型計算了不同配比下Nb在TiAl點陣中的各種可能有序占位結構的結合能,找到了各配比的最低能量Nb原子有序占位方式,總結了不同Al含量下的Nb原子有序占位規律.Abstract: The formation energy of all possible ordering structures formed by different Nb occupation in Ti sublattice of TiAl with various composition is calculated using the pair-wise potential model. The Nb occupation way with minimum energy is found. The rules of Nb occupation with different Al content were obtained.
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Key words:
- ordering /
- Ti-Al-Nb system /
- computer simulation
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