CYCLIC DEFORMATION BEHAVIOR OF AGED FeNiCoAlTa SINGLE CRYSTALS
CYCLIC DEFORMATION BEHAVIOR OF AGED FeNiCoAlTa SINGLE CRYSTALS
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DOI：
10.1142/s1793604712500452
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发表时间：
2012-12
影响因子：
1.3
通讯作者：
P. Krooss;T. Niendorf;I. Karaman;Y. Chumlyakov;H. Maier
中科院分区：
文献类型：
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作者：
P. Krooss;T. Niendorf;I. Karaman;Y. Chumlyakov;H. Maier
研究了[001]取向的Fe-28Ni-17Co-11.5Al-2.5Ta(at.%)形状记忆单晶的拉伸循环变形行为。狗骨形状的试件在不同的时效热处理后进行了长达100个循环的测试，以表征循环的应力-应变响应和功能退化。与7h的长时间老化相比，在700℃下短时间老化1h所形成的较小的颗粒显著增强了抗循环降解能力。
The cyclic deformation behavior of [001] oriented Fe-28Ni-17Co-11.5Al-2.5Ta (at.%) shape memory single crystals was investigated under tension. Dog-bone shaped specimens were tested up to 100 cycles after different aging heat treatments in order to characterize the cyclic stress–strain response and functional degradation. The smaller particles formed as a consequence of short aging for 1 h at 700°C, as compared to longer aging for 7 h, resulted in significantly enhanced resistance to cyclic degradation.