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
收藏
页码：399 / 402
页数：4
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