Effect of chemical ordering annealing on superelasticity of Ni–Mn–Ga–Fe ferromagnetic shape memory alloy microwires

Liu Yanfen^{1, †}, Zhang Xuexi², Shen Hongxian², Sun Jianfei², Li Qinan¹, Liu Xiaohua¹, Li Jianjun¹, Cheng Weidong¹

Tensile stress–strain curves under different loadings for (a) as-extracted Ni₅₀Mn₂₅Ga₂₀Fe₅ microwires at temperature of 310 K and (b) annealed ones at temperature of 318 K.