Characterization of transformation behavior in porous Ni-rich NiTi shape memory alloy fabricated by combustion synthesis

被引:11
作者
Chu, CL [1 ]
Lin, PH
Chung, CY
机构
[1] SE Univ, Dept Mat Sci & Engn, Nanjing 210018, Peoples R China
[2] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China
关键词
D O I
10.1007/s10853-005-6321-x
中图分类号
T [工业技术];
学科分类号
08 [工学];
摘要
The characterization of transformation behavior in porous NiTi shape memory alloy (SMA) fabricated by combustion synthesis was investigated and compared with that of dense Ni-rich NiTi SMA with the same chemical composition prepared by a conventional arc-melting method (CAM). The raw materials used in the fabrication of porous NiTi SMA by SHS were titanium and nickel powders. The general porosity of porous NiTI SMA was determined by weight and dimensional measurement. Optical micrographs show that porous NiTi SMA has an isotropic pore structure in terms of pore morphology and distribution, and the size of the pores is about 200-600μm.
引用
收藏
页码:773 / 776
页数:4
相关论文
共 13 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]
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
[3]
Fabrication of porous NiTi shape memory alloy for hard tissue implants by combustion synthesis [J].
Chu, CL ;
Chung, CY ;
Lin, PH ;
Wang, SD .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 366 (01) :114-119
[4]
Chu CL, 1997, T NONFERR METAL SOC, V7, P84
[5]
GJUNTER VE, 1995, SUPERELASTIC SHAPE M
[6]
Synthesis of porous Ni-Ti shape-memory alloys by self-propagating high-temperature synthesis: Reaction mechanism and anisotropy in pore structure [J].
Li, BY ;
Rong, LJ ;
Li, YY ;
Gjunter, VE .
ACTA MATERIALIA, 2000, 48 (15) :3895-3904
[7]
Electric resistance phenomena in porous Ni-Ti shape-memory alloys produced by SHS [J].
Li, BY ;
Rong, LJ ;
Li, YY ;
Gjunter, VE .
SCRIPTA MATERIALIA, 2001, 44 (05) :823-827
[8]
Lipscomb I. P., 1996, The Application of Shape Memory Alloys in Medicine
[9]
Two-stage martensitic transformation in a deformed and annealed NiTi alloy [J].
Morawiec, H ;
Stroz, D ;
Goryczka, T ;
Chrobak, D .
SCRIPTA MATERIALIA, 1996, 35 (04) :485-490
[10]
Otsuka K., 1988, SHAPE MEMORY MAT