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Study of superelastic performance on novel (Ti-Zr)-based alloy: Influence of thermal treatment time

机译:基于新型(Ti-Zr)基合金的超弹性性能研究:热处理时间的影响

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In this study, the superelastic performance of a novel metastable β Ti-20Zr-3Mo-3Sn alloy (at.%) displaying stress-induced α" martensitic (SIM) transformation is investigated by resistivity, cyclic tensile tests and electron back-scattered diffraction (EBSD) for three different solution treatment durations: 5 min, 30 min and 60 min at 700°C. EBSD observations reveal that the Ti-20Zr-3Mo-3Sn alloy presents different recrystallization texture in the three conditions while keeping the optimal <110>_β direction along the rolling direction. All the samples displayed high recovery strain which is more than 3.0%. However, the shortest heat treatment time allows to stabilize the superelastic behavior at this maximum value for a wide range of applied strain.
机译:在该研究中,通过电阻率,循环拉伸试验和电子背散射衍射研究了一种新的亚稳βTi-20Zr-3MO-3Sn合金(AT.%)的新型亚稳态βTi-20zR-3MO-3Sn合金(AT.%)的超弹性性能 (EBSD)对于三种不同的溶液处理持续时间:5分钟,30分钟和60分钟,在700°C。EBSD观察表明,Ti-20ZR-3MO-3SN合金在三个条件下呈现不同的重结晶纹理,同时保持最佳<110 >_β方向沿滚动方向。所有样品都显示出高度回收菌株,其高于3.0%。然而,最短的热处理时间允许稳定在该最大值的超弹性行为以进行广泛的应用菌株。

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