Influence of partial shape memory deformation on the burst character of its recovery in heated Ni-Fe-Ga-Co alloy crystals

被引：24

作者：

Nikolaev, V. I. ^{[1
]}

Yakushev, P. N. ^{[1
]}

Malygin, G. A. ^{[1
]}

Averkin, A. I. ^{[1
]}

Pulnev, S. A. ^{[1
]}

Zograf, G. P. ^{[1
,2
]}

Kustov, S. B. ^{[2
,3
]}

Chumlyakov, Yu. I. ^{[4
]}

机构：

[1] Russian Acad Sci, Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[2] ITMO Univ, St Petersburg Natl Res Univ Informat Technol Mech, St Petersburg 197101, Russia

[3] Univ Illes Balears, E-07122 Palma de Mallorca, Spain

[4] Tomsk State Univ, Siberian Phys Tech Inst, Tomsk 634050, Russia

来源：

TECHNICAL PHYSICS LETTERS | 2016年 / 42卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

CU-AL-NI; THERMODYNAMICS;

D O I：

10.1134/S1063785016040209

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Room-temperature stress-strain curves of Ni49Fe18Ga27Co6 alloy single crystals possessing shape memory (SM) have been studied. Specific features of these diagrams are revealed upon compressive loading of these single crystals in the [110] (A) direction. The influence of preliminary SM deformation on the process of its recovery during the reverse martensite transformation has been studied. It is established that SM deformation above 4.2% leads to a sharp increase in the shape recovery on heating and the process exhibits a burst character, involving motion of the entire crystal. The experimental data are analyzed and stress-strain curves are simulated in the framework of the theory of diffuse martensitic transitions.

引用

页码：399 / 402

页数：4

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