B2 Ordering and Its Effect on Room Temperature Superelasticity in Mg-Sc Alloy
B2 Ordering and Its Effect on Room Temperature Superelasticity in Mg-Sc Alloy
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Mg-Sc合金B2有序及其对室温超弹性的影响
DOI：
10.1007/s11661-023-07062-4
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
Y. Sutou
中科院分区：
文献类型：
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作者：
K. Yamagishi;Y. Takeuchi;Y. Ogawa;D. Ando;Y. Sutou
研究了时效处理对Mg-Sc合金组织和超弹性的影响。透射电镜观察和拉伸试验表明，100℃时效处理使母相由无序的bcc （A2）有序变为有序的bcc （B2）结构，并显著提高了室温超弹性。时效竹晶样品的最大超弹性回复率为4.6%，与传统的形状记忆合金相当。
We investigated the effect of aging treatment on the microstructure and superelasticity of Mg–Sc alloy. Transmission electron microscopy observations and tensile tests revealed that aging treatment at 100 °C caused ordering of the parent phase from a disordered bcc (A2) to an ordered bcc (B2) structure and considerably improved the superelasticity at room temperature. The maximum superelastic recovery obtained in an aged bamboo-crystalline sample was 4.6 pct, which is comparable to the conventional shape memory alloys.