Abstract The pseudoelastic behavior of a series of Fe–33Mn–17Al–6Ni–0.15C (at%) shape memory alloy single crystals was analysed with compression tests. The specimens, with different crystallographic orientations, showed almost 100% strain recovery after a full stress-induced martensitic transformation. The size and distribution of precipitates introduced in the alloy processing proved to be clearly suitable for achieving a completely reversible pseudoelastic transformation, without the need of additional aging in this Al-rich alloy. The transformation strain was analysed using the phenomenological theory of martensite transformation. This model roughly describes the pseudoelastic strain under compression as a function of the crystallographic orientation.

中文翻译：

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未经时效调节阶段获得的富铝 Fe–33Mn–17Al–6Ni–0.15C (at%) 形状记忆单晶的优异伪弹性

摘要 通过压缩试验分析了一系列 Fe-33Mn-17Al-6Ni-0.15C (at%) 形状记忆合金单晶的伪弹性行为。具有不同晶体取向的试样在完全应力诱导马氏体转变后显示出几乎 100% 的应变恢复。合金加工中引入的析出物的尺寸和分布证明显然适合实现完全可逆的伪弹性转变，而无需在这种富铝合金中进行额外时效。使用马氏体转变的现象学理论分析转变应变。该模型粗略地将压缩下的伪弹性应变描述为晶体取向的函数。