利用Monte Carlo法计算bcc二元合金在低温下的微观结构,计算中原子交换能满足e1＜0和e2＜0.对于合金A-50B,e2/e1＜2/3和e2/e1＞2/3的情形分别对应完整的B2和B32结构.而对于合金A-25B,e2/e1＜0.6时,用Monte Carlo方法不易得到完整的D03结构,且B2有序化过程早于D03结构.
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