Abstract The mechanical properties of Ni-Mn-Sn alloy thin films with excellent magnetic properties are poor, which limit practical application seriously. Therefore, the effect of Fe doping on the mechanical properties and martensitic reverse transformation of Ni-Mn-Sn thin films were investigated. The grain size of Ni50-xMn39Sn11Fex (x = 0, 0.5, 2, 4) thin films decreases with increasing Fe content. The As and Af of Ni50-xMn39Sn11Fex (x = 0, 0.5, 2) thin films gradually decrease with the increase of Fe content. The austenitic Curie temperature of austenite increases with increasing Fe content. The hardness and elastic modulus of Ni50-xMn39Sn11Fex (x = 0, 0.5, 2, 4) thin films increase with increasing Fe content. The wear resistance, toughness and creep resistance of thin films increases with increasing Fe content. Therefore, doping Fe in Ni-Mn-Sn thin films can improve mechanical properties of alloy thin films significantly.

中文翻译：

---

Fe掺杂Ni-Mn-Sn合金薄膜的力学性能

摘要 具有优异磁性能的Ni-Mn-Sn合金薄膜的力学性能较差，严重限制了其实际应用。因此，研究了Fe掺杂对Ni-Mn-Sn薄膜力学性能和马氏体逆转变的影响。Ni50-xMn39Sn11Fex (x = 0, 0.5, 2, 4)薄膜的晶粒尺寸随着Fe含量的增加而减小。Ni50-xMn39Sn11Fex (x = 0, 0.5, 2)薄膜的As和Af随着Fe含量的增加而逐渐降低。奥氏体的奥氏体居里温度随着铁含量的增加而增加。Ni50-xMn39Sn11Fex (x = 0, 0.5, 2, 4)薄膜的硬度和弹性模量随着Fe含量的增加而增加。薄膜的耐磨性、韧性和抗蠕变性随着 Fe 含量的增加而增加。所以，