Thermoelastic phase transformation in TiNi alloys under cyclic instrumented indentation

被引：29

作者：

Arciniegas, M. ^{[1
]}

Gaillard, Y. ^{[1
]}

Pena, J. ^{[1
,2
]}

Manero, J. M. ^{[1
]}

Gil, F. J. ^{[1
]}

机构：

[1] Tech Univ Catalonia, Dept Met Engn & Mat Sci, E-08028 Barcelona, Spain

[2] Escola Super Disseny ELISAVA, Dept Mat Sci, Barcelona 08002, Spain

来源：

INTERMETALLICS | 2009年 / 17卷 / 10期

关键词：

Shape-memory effects; Mechanical testing; SHAPE-MEMORY ALLOYS; TITANIUM-NICKEL FILMS; THIN-FILMS; MARTENSITIC TRANSFORMATIONS; WEAR-RESISTANCE; NANOINDENTATION; BEHAVIOR; PSEUDOELASTICITY; MICROSCOPY; STRESS;

D O I：

10.1016/j.intermet.2009.03.020

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Austenitic and martensitic TiNi shape memory alloys were studied by means of cyclic instrumented indentation with the purpose of documenting the phase transformation. Recovery indexes were determined from the energy absorbed during loading, unloading and reloading and their relation with the microstructure and shape memory properties established. Significant changes on the load-displacement curves, associated to the transformation phenomenon, were exhibited by both materials. Under spherical cyclic nanoindentation, a classic pseudoelastic behavior was observed in the austenitic alloy, which was characterized by high recovery indexes and constitutes the first experimental evidence of this property under such testing conditions. On the other hand, the martensitic alloy showed lower recovery indexes, as a consequence of a faster stabilization process of the martensite plates. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：784 / 791

页数：8

共 42 条

[1] The influence of plastic hardening on surface deformation modes around vickers and spherical indents [J].

Alcalá, J ;

Barone, AC ;

Anglada, M .

ACTA MATERIALIA, 2000, 48 (13) :3451-3464

[2] Study of hardness and wear behaviour of NiTi shape memory alloys [J].

Arciniegas, A. ;

Casals, J. ;

Manero, J. M. ;

Pena, J. ;

Gil, F. J. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 460 (1-2) :213-219

[3] Study of new multifunctional shape memory and low elastic modulus Ni-free Ti alloys [J].

Arciniegas, M. ;

Manero, J. M. ;

Pena, J. ;

Gil, F. J. ;

Planell, J. A. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2008, 39A (04) :742-751

[4] Multiple-step martensitic transformations in Ni-rich NiTi shape memory alloys [J].

Carroll, MC ;

Somsen, C ;

Eggeler, G .

SCRIPTA MATERIALIA, 2004, 50 (02) :187-192

[5] Nanoindentation and microindentation of CuAlNi shape memory alloy [J].

Crone, W. C. ;

Brock, H. ;

Creuziger, A. .

EXPERIMENTAL MECHANICS, 2007, 47 (01) :133-142

[6]

Domnich V., 2002, Reviews on Advanced Materials Science, V3, P1

[7]

Duerig TW, 1994, MAT PROP HDB TIT ALL

[8]

Duering TW., 1990, Engineering Aspects of Shape Memory Alloys

[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]

Fisher-Cripps A.C., 2004, Nanoindentation, V2nd

← 1 2 3 4 5 →