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首页> 外文期刊>Shape memory and superelasticity >Effect of Stress-Induced Martensite Aging on Martensite Variant Reorientation Strain in NiMnGa Single Crystals
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Effect of Stress-Induced Martensite Aging on Martensite Variant Reorientation Strain in NiMnGa Single Crystals

机译：应力诱导的马氏体老化对Nimnga单晶马氏体变异重构应变的影响

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摘要

This work presents the effect of stress-induced martensite aging (SIM-aging) on the functional properties of Ni53Mn25Ga22 (at.%) single crystals, oriented along the [001]L21-direction. The most effective regime of SIM-aging occurred under a compressive stress of 175?MPa along the [110]L21||[100]L10-direction at 423?K, for 2?h, which induced the high-temperature two-way shape memory effect with a reversible tensile strain of +9.0%, causing the jumping of the sample during cooling/heating in free state, and a rubber-like behavior with a giant reversible compression strain up to ??13.2% caused by L10-martensite variant reorientation.
机译：该工作介绍了应力诱导的马氏体老化（Sim-Tasging）对Ni53Mn25Ga22（At.％）单晶的功能性质的影响，沿着[001] L21方向取向。 SIM-aging的最有效的SIM-ag的制度发生在175℃的压缩应力下沿[110] L21 || [100] L10-方向为423Ω·k，诱导高温双向 形状记忆效果，可逆拉伸应变为+ 9.0％，导致样品在自由状态冷却/加热过程中跳跃，以及巨型可逆压缩应变的橡胶状行为，由L10-马氏体引起的13.2％ 变体重新定位。

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