On the plasticity of small-scale nickel-titanium shape memory alloys

被引：42

作者：

Frick, Carl P. ^{[1
]}

Clark, Blythe G. ^{[2
,3
]}

Schneider, Andreas S. ^{[2
]}

Maass, Robert ^{[4
]}

Van Petegem, Steven ^{[4
]}

Van Swygenhoven, Helena ^{[4
]}

机构：

[1] Univ Wyoming, Dept Mech Engn, Laramie, WY 82071 USA

[2] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

[3] INM Leibniz Inst New Mat, D-66123 Saarbrucken, Germany

[4] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

来源：

SCRIPTA MATERIALIA | 2010年 / 62卷 / 07期

关键词：

Plastic deformation; Shape memory alloys (SMA); Compression test; Transmission electron microscopy (TEM); Micropillars; MARTENSITE START TEMPERATURES; STRESS-INDUCED TRANSFORMATION; NITI; DEFORMATION; PSEUDOELASTICITY; STRENGTH;

D O I：

10.1016/j.scriptamat.2009.12.023

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Focused ion beam machined compression pillars created from [1 1 1], [0 0 1] and [2 1 0] NiTi demonstrate that orientation plays a dominant role in determining dislocation flow stress in stress-induced martensite. This is in contrast to bulk NiTi in which martensite strength is primarily dictated by precipitate size. Post-mortem transmission electron microscopy and Laue microdiffraction measurements reveal respectively dense dislocation structures and stabilized martensite consistent with bulk observations in heavily deformed NiTi. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.

引用

页码：492 / 495

页数：4

共 25 条

[1] 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

[2] Predicting the orientation-dependent stress-induced transformation and detwinning response of shape memory alloy single crystals [J].

Buchheit, TE ;

Wert, JA .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1996, 27 (02) :269-279

[3] Size effect on strength and strain hardening of small-scale [111] nickel compression pillars [J].

Frick, C. P. ;

Clark, B. G. ;

Orso, S. ;

Schneider, A. S. ;

Arzt, E. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 489 (1-2) :319-329

[4] 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

[5] 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

[6] Stress-induced martensitic transformations and shape memory at nanometer scales [J].

Frick, Carl P. ;

Lang, Travis W. ;

Spark, Kevin ;

Gall, Ken .

ACTA MATERIALIA, 2006, 54 (08) :2223-2234

[7] Thermal processing of polycrystalline NiTi shape memory alloys [J].

Frick, CP ;

Ortega, AM ;

Tyber, J ;

Maksound, AEM ;

Maier, HJ ;

Liu, YN ;

Gall, K .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 405 (1-2) :34-49

[8] The role of texture in tension-compression asymmetry in polycrystalline NiTi [J].

Gall, K ;

Sehitoglu, H .

INTERNATIONAL JOURNAL OF PLASTICITY, 1999, 15 (01) :69-92

[9] The influence of aging on critical transformation stress levels and martensite start temperatures in NiTi: Part II - Discussion of experimental results [J].

Gall, K ;

Sehitoglu, H ;

Chumlyakov, YI ;

Kireeva, IV ;

Maier, HJ .

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 1999, 121 (01) :28-37

[10] The influence of aging on critical transformation stress levels and martensite start temperatures in NiTi: Part I - Aged microstructure and micro-mechanical modeling [J].

Gall, K ;

Sehitoglu, H ;

Chumlyakov, YI ;

Kireeva, IV ;

Maier, HJ .

JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME, 1999, 121 (01) :19-27

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