Influence of thermal cycling on the reversible martensitic transformation in a Cu-Al-Ni shape memory alloy

1995 ◽  
Vol 196 (1-2) ◽  
pp. 177-181 ◽  
Author(s):  
M. Morin ◽  
F. Trivero
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloy ◽  
Thermal Cycling ◽  
Shape Memory

The effect of thermal cycling on the martensitic transformation in equiatomic CuZr shape memory alloy

2015 ◽  
Vol 653 ◽  
pp. 591-595 ◽  
Author(s):  
C.A. Biffi ◽  
M. Coduri ◽  
H. Yoshida ◽  
Y. Soejima ◽  
M. Nishida ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloy ◽  
Thermal Cycling ◽  
Shape Memory

Unusual Multistage Martensitic Transformation in TiNi Shape Memory Alloy after Thermal Cycling

2013 ◽  
Vol 738-739 ◽  
pp. 372-376 ◽  
Author(s):  
Aleksey Sibirev ◽  
Sergey Belyaev ◽  
Natalia Resnina
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloy ◽  
Thermal Cycling ◽  
Shape Memory ◽  
Temperature Interval ◽  
Defect Structure ◽  
Tini Alloy ◽  
Thermal Cycles ◽  
Unusual Phenomenon ◽  
Kinetics Of

Variation in kinetics of martensitic transformation, in an equiatomic TiNi shape memory alloy, during thermal cycles was investigated. Samples annealed at 500 °C for 1 hour were subjected to repeated thermal cycles, through the temperature range of martensitic transformation. Unusual 4-stage martensitic transformation during cooling after 30 thermal cycles was observed. Moreover, a new unusual phenomenon was found in the preliminary thermal cycled TiNi alloy. It was observed that variation in the highest temperature Th of thermal cycles temperature interval resulted in the redistribution of released heat among four calorimetric peaks, observed on cooling. It was found that if the Th temperature did not exceed 240 °C the variation in kinetics was repeatable, and determined only by the value of Th. It was assumed that the defect structure induced on preliminary thermal cycling changes reversibly on cooling and heating.

scholarly journals Effect of Thermal Cycling on the Martensitic Transformation in an Fe–24Mn–6Si Shape Memory Alloy

1992 ◽  
Vol 33 (3) ◽  
pp. 263-270 ◽  
Author(s):  
K. Tsuzaki ◽  
M. Ikegami ◽  
Y. Tomota ◽  
Y. Kurokawa ◽  
W. Nakagawara ◽  
...  
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloy ◽  
Thermal Cycling ◽  
Shape Memory

scholarly journals Effects of aging and thermal cycling on the microstructure and damping behaviors of a porous CuAlMn shape memory alloy

2020 ◽  
Vol 9 (4) ◽  
pp. 7020-7026
Author(s):  
Qian Wang ◽  
Liwei Wang ◽  
Jie Kang ◽  
Qingzhou Wang ◽  
Chunxiang Cui ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Thermal Cycling ◽  
Shape Memory ◽  
Effects Of Aging

Micro and Macromechanical Study of Stress-Induced Martensitic Transformation in a Cu-Al-Be Polycrystalline Shape Memory Alloy

2006 ◽  
Vol 509 ◽  
pp. 87-92 ◽  
Author(s):  
F.M. Sánchez ◽  
G. Pulos
Keyword(s):  
Martensitic Transformation ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Vector Fields ◽  
Displacement Vector ◽  
Optical Microscope ◽  
Image Sequences ◽  
Tension Test ◽  
Loading Device ◽  
Stress States

An experimental investigation of the micro and macromechanical stress-induced martensitic transformation in a Cu-Al-Be polycrystalline shape memory alloy is undertaken using a uniaxial tension test. Digital images are acquired at different stress states. The image sequences are analyzed to estimate the optical flow to get displacement vector fields. The experiments are carried out on a miniature hydraulic loading device mounted under an optical microscope. The stress-strain curves and associated images show stress-induced martensitic transformation in specific grains. Displacement vector fields for the polycrystalline shape memory alloy are obtained. They are inhomogeneous due to the martensitic transformation and inter-granular interactions.

Sign in / Sign up

Export Citation Format

Share Document