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.

引用

页数：5

共 11 条

[1] Effect of oriented γ′ precipitates on shape memory effect and superelasticity in Co-Ni-Ga single crystals [J].