Ways to lower transformation temperatures of porous NiTi shape memory alloy fabricated by self-propagating high-temperature synthesis

2006 ◽  
Vol 438-440 ◽  
pp. 883-886 ◽  
Author(s):  
H.C. Jiang ◽  
L.J. Rong
Keyword(s):  
High Temperature ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Niti Shape Memory Alloy ◽  
Temperature Synthesis ◽  
Transformation Temperatures ◽  
Porous Niti ◽  
High Temperature Synthesis

Finding the energy source for self-propagating high-temperature synthesis production of NiTi shape memory alloy

2016 ◽  
Vol 181 ◽  
pp. 295-300 ◽  
Author(s):  
Pavel Novák ◽  
Andrea Školáková ◽  
Damien Pignol ◽  
Filip Průša ◽  
Pavel Salvetr ◽  
...  
Keyword(s):  
Energy Source ◽  
High Temperature ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Niti Shape Memory Alloy ◽  
Temperature Synthesis ◽  
High Temperature Synthesis

INFLUENCES OF HEAT TREATMENT ON TRANSFORMATION BEHAVIORS OF NEAR-EQUIATOMIC POROUS NITI SHAPE MEMORY ALLOY

2010 ◽  
Vol 24 (15n16) ◽  
pp. 2410-2416
Author(s):  
H. C. JIANG ◽  
Y. CHEN ◽  
S. W. LIU ◽  
L. J. RONG
Keyword(s):  
Heat Treatment ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Niti Alloy ◽  
Niti Shape Memory Alloy ◽  
Scanning Calorimetry ◽  
Pore Characteristics ◽  
Transformation Temperatures ◽  
Porous Niti ◽  
High Temperature Synthesis

The pore characteristics and pore size distribution of porous near-equiatomic NiTi shape memory alloy fabricated by self-propagating high-temperature synthesis (SHS) are described in detail. The effects of different heat treatments on the transformation of porous NiTi alloy were investigated by differential scanning calorimetry (DSC), x-ray diffraction (XRD), and scanning electron microscopy (SEM). The results indicate that heat treatment had strong influences on the transformation temperatures and latent heats of transformation. When the porous alloy was annealed at 648K and 748K for 3.6ks, two steps transformation including R transformation occurred during cooling and heating and the R transformation temperatures are lower than B 2↔ B 19' transformation temperatures. However, no transformation was detected within the experimental temperature range if the porous alloy was solution treated at 1133K for 2.4ks. This novel phenomenon was the results of extensive Ti2Ni intermetallic compound precipitation. The transformation temperatures of porous NiTi alloy after annealing at 1323K for 3.6ks were much lower than those of the untreated alloy.

Laser ignition in Self-propagating High temperature Synthesis of porous NiTinol Shape Memory Alloy

2017 ◽  
Vol 193 ◽  
pp. 54-57 ◽  
Author(s):  
C.A. Biffi ◽  
P. Bassani ◽  
Zahra Sajedi ◽  
P. Giuliani ◽  
A. Tuissi
Keyword(s):  
High Temperature ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Laser Ignition ◽  
Temperature Synthesis ◽  
High Temperature Synthesis
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