In situ TEM observation of two-step martensitic transformation in aged NiTi shape memory alloy

被引:31
作者
Tan, L
Crone, WC
机构
[1] Univ Wisconsin, Dept Engn Phys, Madison, WI 53706 USA
[2] Univ Wisconsin, Mat Sci Program, Madison, WI 53706 USA
关键词
martensitic transformation; ageing; TEM; DSC;
D O I
10.1016/j.scriptamat.2003.12.019
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Martensitic transformation was investigated in an aged NiTi alloy with DSC and a temperature controllable TEM specimen stage to observe the influence of T11Ni14 precipitates and R-phase on martensitic transformation in situ. The R-phase, conventional martensitic twins, and a new morphology of interwoven austenite/martensitic structure were observed. (C) 2003 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:819 / 823
页数:5
相关论文
共 24 条
[1]   The mechanism of multistage martensitic transformations in aged Ni-rich NiTi shape memory alloys [J].
Allafi, JK ;
Ren, X ;
Eggeler, G .
ACTA MATERIALIA, 2002, 50 (04) :793-803
[2]   Non-medical applications of shape memory alloys [J].
Van Humbeeck, J .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 273 :134-148
[3]  
*ASTM, 2002, ANN BOOK ASTM, P1480
[4]  
*ASTM, 2002, ANN BOOK ASTM, P1482
[5]  
Bataillard L, 1998, PHILOS MAG A, V78, P327, DOI 10.1080/01418619808241907
[6]  
BHATTACHARYA K, 2003, MICROSTRUCTURE MART, P159
[7]   EFFECT OF LOW-TEMPERATURE PHASE CHANGES ON MECHANICAL PROPERTIES OF ALLOYS NEAR COMPOSITION TINI [J].
BUEHLER, WJ ;
WILEY, RC ;
GILFRICH, JV .
JOURNAL OF APPLIED PHYSICS, 1963, 34 (05) :1475-&
[8]   Multiple-step martensitic transformations in Ni-rich NiTi alloys -: an in-situ transmission electron microscopy investigation [J].
Dlouhy, A ;
Khalil-Allafi, J ;
Eggeler, G .
PHILOSOPHICAL MAGAZINE, 2003, 83 (03) :339-363
[9]   An overview of nitinol medical applications [J].
Duerig, T ;
Pelton, A ;
Stöckel, D .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1999, 273 :149-160
[10]  
Fuentes JMG, 2002, ADV ENG MATER, V4, P437, DOI 10.1002/1527-2648(20020717)4:7<437::AID-ADEM437>3.0.CO