Superelasticity and two-way shape memory effect in [001]-oriented TiNiCu single crystals under compression

被引：4
|
作者：
Kireeva, I., V [1 ]
Pobedennaya, Z., V [1 ]
Chumlyakov, Y., I [1 ]
Marchenko, E. S. [1 ]
机构：
[1] Natl Res Tomsk State Univ, Tomsk 634050, Russia
来源：
MATERIALS LETTERS | 2020年 / 281卷
关键词：
TiNiCu single crystals; Superelasticity; Shape memory effect; Two-way shape memory effect; TEMPERATURE; BEHAVIOR;
D O I：
10.1016/j.matlet.2020.128646
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper reports the effect of stress-induced martensite ageing (SIM-ageing), and subsequent training in the superelasticity temperature range (SE-training) upon compression, on the shape memory and superelastic response of [001]-oriented crystals of the Ti50Ni40Cu10 (at.%) alloy. It was shown that after SIM-ageing and SE-training, stabilized B19-martensite was observed. Stabilized B19-martensite does not suppress superelastic behavior, leads to development of martensitic transformation under loading with high hardening and creates the conditions for a compressive two-way shape memory effect of 0.9%. The magnitude of the normal shape memory effect was 3.2% at an external stress of 100 MPa and superelasticity up to 2-2.5%. (C) 2020 Elsevier B.V. All rights reserved.
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页数：5
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