Temperature-dependent behavior of a polycrystalline NiTi shape memory alloy around the transformation regime

被引：55

作者：

Benafan, O. ^{[1
]}

Noebe, R. D. ^{[1
]}

Padula, S. A., II ^{[1
]}

Gaydosh, D. J. ^{[1
,2
]}

Lerch, B. A. ^{[1
]}

Garg, A. ^{[1
,3
]}

Bigelow, G. S. ^{[1
]}

An, K. ^{[4
]}

Vaidyanathan, R. ^{[5
]}

机构：

[1] NASA, Glenn Res Ctr, Struct & Mat Div, Cleveland, OH 44135 USA

[2] Ohio Aerosp Inst, Cleveland, OH 44142 USA

[3] Univ Toledo, Toledo, OH 43606 USA

[4] Oak Ridge Natl Lab, Spallat Neutron Source, Oak Ridge, TN 37831 USA

[5] Univ Cent Florida, Mat Sci & Engn Dept, Adv Mat Proc & Anal Ctr, Orlando, FL 32816 USA

来源：

SCRIPTA MATERIALIA | 2013年 / 68卷 / 08期

关键词：

Shape memory alloys; NiTi; Martensite reorientation; Dynamic modulus; Neutron diffraction; MODULI;

D O I：

10.1016/j.scriptamat.2012.11.042

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The mechanical and microstructural behavior of a polycrystalline Ni49.9Ti50.1 (at.%) shape memory alloy was investigated as a function of temperature around the transformation regime. The bulk macroscopic responses, measured using ex situ tensile deformation and impulse excitation tests, were compared to the microstructural evolution captured using in situ neutron diffraction. The onset stress for inelastic deformation and dynamic Young's modulus were found to decrease with temperature in the martensite regime followed by an increase starting near the austenite start temperature, attributed to the reverse transformation. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.

引用

页码：571 / 574

页数：4

共 11 条

[1] First In Situ Lattice Strains Measurements Under Load at VULCAN [J].

An, Ke ;

Skorpenske, Harley D. ;

Stoica, Alexandru D. ;

Ma, Dong ;

Wang, Xun-Li ;

Cakmak, Ercan .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2011, 42A (01) :95-99

[2]

[Anonymous], 2009, E187609 ASTM INT

[3]

[Anonymous], 1989, ADV ROBOTICS, DOI DOI 10.1163/156855389X00145

[4] Role of B19′ martensite deformation in stabilizing two-way shape memory behavior in NiTi [J].

Benafan, O. ;

Padula, S. A., II ;

Noebe, R. D. ;

Sisneros, T. A. ;

Vaidyanathan, R. .

JOURNAL OF APPLIED PHYSICS, 2012, 112 (09)

[5]

Benafan O., 2012, Deformation and Phase Transformation Processes in Polycrystalline N

[6]

Mavroidis C, 2002, RES NONDESTRUCT EVAL, V14, P1, DOI 10.1007/s00164-001-0018-6

[7] On elastic moduli and elastic anisotropy in polycrystalline martensitic NiTi [J].

Qiu, S. ;

Clausen, B. ;

Padula, S. A., II ;

Noebe, R. D. ;

Vaidyanathan, R. .

ACTA MATERIALIA, 2011, 59 (13) :5055-5066

[8] Measurement of the lattice plane strain and phase fraction evolution during heating and cooling in shape memory NiTi [J].

Qiu, S. ;

Krishnan, V. B. ;

Padula, S. A., II ;

Noebe, R. D. ;

Brown, D. W. ;

Clausen, B. ;

Vaidyanathan, R. .

APPLIED PHYSICS LETTERS, 2009, 95 (14)

[9] Elastic modulus of shape-memory NiTi from in situ neutron diffraction during macroscopic loading, instrumented indentation, and extensometryl -: art. no. 081901 [J].

Rajagopalan, S ;

Little, AL ;

Bourke, MAM ;

Vaidyanathan, R .

APPLIED PHYSICS LETTERS, 2005, 86 (08) :1-3

[10]

Stebner A.P., 2012, THESIS NW U EVANSTON

← 1 2 →