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研究了Ｆｅ－２９．４４Ｍｎ－６．２０Ｓｉ合金中的γ ε相变和顺磁性反铁磁性转变（以下简称磁转变）。用电阻测量跟踪了此过程。用ｘ射线衍射法（ＸＲＤ）作了相分析。硅急剧增加六方相的电阻率，ε→γ相变表现为电阻降低，γ→ε转变表现为电阻升高。ＸＲＤ表明，淬火后样品中除γ相外有少量六方ε相。扭转形变恢复率与形变量和形变前有无热诱发马氏体存在有很大关系。
The γ ε transformation and paramagnetic antiferromagnetic transformation (hereinafter referred to as magnetic transition) in Fe-29.44Mn-6.20Si alloy were studied. This process is followed with resistance measurements. Phase analysis was performed by x-ray diffraction (XRD). Silicon rapidly increases the resistivity of the hexagonal phase, the ε → γ phase transformation shows a decrease in resistance, and the γ → ε phase transformation shows an increase in resistance. XRD shows that there is a small amount of hexagonal ε phase in the sample except the γ phase after quenching. The recovery rate of torsional deformation is closely related to the amount of deformation and the existence of heat-induced martensite before deformation.