一种具有高形状回复率的双相Ni-Mn-Ga-Gd高温形状记忆合金（英文）

发布时间：2018-05-06 07:30

  本文选题：高温形状记忆 + Ni-Mn-Ga合金　； 参考：《稀有金属材料与工程》2017年09期

【摘要】：通过弯曲试验研究了双相Ni_(58)Mn_(25)Ga_(16.9)Gd_(0.1)合金的形状记忆效应和回复率。结果表明,该合金具有优异的形状回复能力。在预变形4.6%加热后,可以得到86%的形状回复率,高于已报道的双相Ni-Mn-Ga合金。这是因为Gd掺杂提高了γ相的临界滑移应力,使γ相不易发生变形。
[Abstract]:The shape memory effect and the recovery rate of the biphasic NiStack58 Mn-MN _ (25) GdSZ _ (0.1) alloy have been studied by means of bending test. The results are as follows: (1) the shape memory effect and the recovery rate of the alloy are studied. The results show that the alloy has excellent shape recovery ability. After predeformation of 4.6% heating, 86% shape recovery can be obtained, which is higher than the reported dual phase Ni-Mn-Ga alloy. This is because Gd doping increases the critical slip stress of 纬 phase and makes 纬 phase difficult to deform.
【作者单位】： 天津理工大学;
【基金】：China Postdoctoral Science Foundation Funded Project(2015M571269)
【分类号】：TG139.6
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本文编号：1851371