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按固溶体微观不均匀性理论,异类原子(AB)间的结合力大于同类原子(AA)或(BB)间的结合力时,溶体原子在点阵中的位置将按一定的规则呈短程有序分布。据此,对Fe—C—Si合金奥氏体做出如下假设:
According to the microscopic heterogeneity theory of solid solution, when the binding force between heterogeneous atoms (AB) is greater than that between the same type of atom (AA) or (BB), the position of the dissolved atoms in the lattice will be short-range ordered according to certain rules distributed. Accordingly, the austenite of Fe-C-Si alloy made the following assumptions: