Transformation-induced plasticity as the origin of serrated flow in an NiTi shape memory alloy

被引：51

作者：

Kato, Hiroyuki ^{[1
]}

Sasaki, Kazuaki ^{[1
]}

机构：

[1] Hokkaido Univ, Fac Engn, Sapporo, Hokkaido 0608628, Japan

来源：

INTERNATIONAL JOURNAL OF PLASTICITY | 2013年 / 50卷

关键词：

Shape memory alloy; Martensite transformation; Transformation-induced plasticity; EQUIATOMIC NICKEL-TITANIUM; MARTENSITIC-TRANSFORMATION; CONSTITUTIVE MODEL; POLYCRYSTALLINE NITI; SINGLE-CRYSTALS; PSEUDOELASTIC BEHAVIOR; DEFORMATION-BEHAVIOR; COMPRESSION PILLARS; MECHANICAL-BEHAVIOR; CYCLIC DEFORMATION;

D O I：

10.1016/j.ijplas.2013.03.011

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Transformation-induced plasticity was observed in an NiTi shape memory alloy. It was found that the austenite phase of a solutionized 50.5at.%Ni-Ti alloy shows a serrated stress-strain curve in a narrow range of 311-328 K, just below the temperature at which the deformation mechanism of the austenite phase changes from that of stress-induced martensitic transformation in the low temperature ranges to slip at high temperatures (329 K). Microstructure observation and thermal analysis have concluded the simultaneous occurrence of the two deformation mechanisms in the serrated flow. The interaction between the martensitic transformation and slip was investigated. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：37 / 48

页数：12

共 73 条

[1]

[Anonymous], 1982, J PHYS S12

[2]

Bataillard L, 1998, PHILOS MAG A, V78, P327, DOI 10.1080/01418619808241907

[3]

BILBY BA, 1953, PHILOS MAG, V44, P782

[4] Stress-induced transformation behavior of a polycrystalline NiTi shape memory alloy: micro and macromechanical investigations via in situ optical microscopy [J].

Brinson, LC ;

Schmidt, I ;

Lammering, R .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2004, 52 (07) :1549-1571

[5]

Buehler W., 1969, WIRE J, V2, P41

[6] A finite element model for shape memory alloys considering thermomechanical couplings at large strains [J].

Christ, Daniel ;

Reese, Stefanie .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2009, 46 (20) :3694-3709

[7] CRYSTALLOGRAPHIC THEORIES, INTERFACE STRUCTURES, AND TRANSFORMATION MECHANISMS [J].

CHRISTIAN, JW .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1994, 25 (09) :1821-1839

[8] Transmission electron microscopy investigation of dislocation slip during superelastic cycling of Ni-Ti wires [J].

Delville, R. ;

Malard, B. ;

Pilch, J. ;

Sittner, P. ;

Schryvers, D. .

INTERNATIONAL JOURNAL OF PLASTICITY, 2011, 27 (02) :282-297

[9] Loss of pseudoelasticity in nickel-titanium sub-micron compression pillars [J].

Frick, C. P. ;

Orso, S. ;

Arzt, E. .

ACTA MATERIALIA, 2007, 55 (11) :3845-3855

[10] Orientation-independent pseudoelasticity in small-scale NiTi compression pillars [J].

Frick, Carl P. ;

Clark, Blythe G. ;

Orso, Steffen ;

Sonnweber-Ribic, Petra ;

Arzt, Eduard .

SCRIPTA MATERIALIA, 2008, 59 (01) :7-10

← 1 2 3 4 5 6 7 8 →