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在一定条件下具有单相微观组织的 L 12 型 [Ni3 Al,Ni3 (Si,Ti) ,Co3 Ti],L 10 型 (Ti Al)和 B2型 (Fe Al,Fe3 Al,Ni Al)金属间化合物均表现出超塑性行为。其中 ,L 12 型和 L 10 型金属间化合物的超塑性变形机制为晶界的滑移 ,而 B2型金属间化合物的超塑性变形则来自于变形过程中发生的动态回复及再结晶。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。
L12 type [Ni3Al, Ni3 (Si, Ti), Co3Ti], L10 type (TiAl) and B2 type (FeAl, Fe3Al, NiAl) intermetallics with single phase microstructure under certain conditions The compounds showed superplastic behavior. Among them, the superplastic deformation mechanism of the L12-type and L10-type intermetallic compounds is the sliding of the grain boundary, while the superplastic deformation of the B2 type intermetallic compound comes from the dynamic recovery and recrystallization occurring during the deformation. The diversity of the superplastic deformation mechanism is due to the intermetallic compounds in the microstructure and dislocation structure (such as reverse domain boundary layer, the fault energy and chemical composition differences, super-dislocation and interface dislocation, etc.) than the average metal alloy Much more complicated.