The multi mechanisms of superplasticity arise from the microstructural and dislocation characteristics of an ordered intermetallic compound, such as anti phase boundary, stacking fault, compositional difference, superdislocation and interfacial dislocation, are much more sophisticated than those of a monolithic metal alloy. 超塑性变形机制的多样性是由于金属间化合物在微观组织及位错结构上(如反向畴界能、层错能和化学成分差异、超位错及界面位错等)比普通金属合金要复杂得多。