Elastocaloric cooling potential of NiTi, Ni2FeGa, and CoNiAl

被引：197

作者：

Pataky, Garrett J. ^{[1
]}

Ertekin, Elif ^{[1
]}

Sehitoglu, Huseyin ^{[1
]}

机构：

[1] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA

来源：

ACTA MATERIALIA | 2015年 / 96卷

基金：

美国国家科学基金会;

关键词：

Shape memory; Pseudoelasticity; Entropy change; Elastocaloric cooling; Thermography; SINGLE-CRYSTALS; FATIGUE; NIFEGA; TRANSFORMATION;

D O I：

10.1016/j.actamat.2015.06.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Solid state elastocaloric cooling, the endothermic reversible martensitic phase transformation in shape memory alloys, has the potential to replace vapor compression refrigeration. NiTi, Ni2FeGa, and CoNiAl shape memory alloys were experimentally investigated to measure the magnitude of temperature change using thermography during uniaxial tensile experiments. Consecutive tensile cycles were also performed, and they revealed a symmetric temperature profile between the two cycles. The unique, dual camera technique of digital image correlation and thermography was utilized to track the transformation bands and temperature gradients to gain insight about the unloading, endothermic process. Fatigue implications, elevated temperature environments, and the theoretical maximum temperature based on entropy change were discussed. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：420 / 427

页数：8

共 28 条

[1]

[Anonymous], 2009, IMAGE CORRELATION SH, DOI DOI 10.1007/978-0-387-78747-3

[2] High cyclic stability of the elastocaloric effect in sputtered TiNiCu shape memory films [J].

Bechtold, C. ;

Chluba, C. ;

De Miranda, R. Lima ;

Quandt, E. .

APPLIED PHYSICS LETTERS, 2012, 101 (09)

[3] Elastocaloric effect associated with the martensitic transition in shape-memory alloys [J].

Bonnot, Erell ;

Romero, Ricardo ;

Manosa, Lluis ;

Vives, Eduard ;

Planes, Antoni .

PHYSICAL REVIEW LETTERS, 2008, 100 (12)

[4] MAGNETIC HEAT PUMPING NEAR ROOM-TEMPERATURE [J].

BROWN, GV .

JOURNAL OF APPLIED PHYSICS, 1976, 47 (08) :3673-3680

[5] High-temperature superelasticity in CoNiGa, CoNiAl, NiFeGa, and TiNi monocrystals [J].

Chumlyakov, Yu. I. ;

Kireeva, I. V. ;

Panchenko, E. Yu. ;

Timofeeva, E. E. ;

Pobedennaya, Z. V. ;

Chusov, S. V. ;

Karaman, I. ;

Maier, H. ;

Cesari, E. ;

Kirillov, V. A. .

RUSSIAN PHYSICS JOURNAL, 2008, 51 (10) :1016-1036

[6]

Cui J., 2013, MRS Online Proceedings, V1581

[7]

Cui J., 2012, Appl. Phys. Lett., V101

[8] Fatigue response of NiFeGa single crystals [J].

Efstathiou, Christos ;

Sehitoglu, Huseyin ;

Kurath, Peter ;

Foletti, Stefano ;

Davoli, Piermaria .

SCRIPTA MATERIALIA, 2007, 57 (05) :409-412

[9] Structural and functional fatigue of NiTi shape memory alloys [J].

Eggeler, G ;

Hornbogen, E ;

Yawny, A ;

Heckmann, A ;

Wagner, M .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 378 (1-2) :24-33

[10] Fracture of precipitated NiTi shape memory alloys [J].

Gall, K ;

Yang, N ;

Sehitoglu, H ;

Chumlyakov, YI .

INTERNATIONAL JOURNAL OF FRACTURE, 2001, 109 (02) :189-207

← 1 2 3 →