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根据规则固溶体的热力学模型，分别计算铁锰硅、铁锰硅铬、铁锰硅铬镍形状记忆合金的层错能，研究硅、锰、铬、镍合金元素对铁基形状记忆合金层错能的影响。结果表明，锰、铬、镍元素均提高铁锰硅系合金层错能，而硅则降低合金的层错能，其中每１％（原子分数）元素变化对合金层错能影响比例，硅∶锰∶铬∶镍为：－０．２７∶１∶１．１∶１．７。为了获得较佳的形状记忆效应，加入铬、镍元素的同时，降低锰含量以使合金具有低的层错能
According to the rules of the solid solution thermodynamic model, the ferromagnetic silicon, ferromanganese silicon chromium, ferromanganese chromium chromium nickel shape memory alloy layer stacking fault energy, silicon, manganese, chromium, nickel alloy elements of the iron-based shape memory alloy layer fault energy Impact. The results show that Mn, Cr and Ni both improve the stacking fault energy of FeMn-Si alloy, while Si decreases the stacking fault energy of alloy, and the influence of every 1% (atomic fraction) Manganese: Chromium: Nickel: -0.27: 1: 1.1: 1.7. In order to obtain a better shape memory effect, adding chromium and nickel elements, while reducing the manganese content so that the alloy has low stacking fault energy