A Review on Experimental Investigations of Rate Sensitivity of Deformation Behavior in Fe-Based Shape Memory Alloys

2017 ◽  
pp. 31-42 ◽  
Author(s):  
Takeshi Iwamoto ◽  
Bo Cao
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Rate Sensitivity ◽  
Experimental Investigations

scholarly journals Diffusion Effects on Transformation and Deformation Behavior in Copper-Based Shape Memory Alloys

2002 ◽  
Vol 43 (5) ◽  
pp. 926-932 ◽  
Author(s):  
Vicenç Torra ◽  
Antonio Isalgue ◽  
Francisco C. Lovey
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Diffusion Effects

The effect of Cu addition on the hot deformation behavior of NiTi shape memory alloys

2010 ◽  
Vol 499 (1) ◽  
pp. 57-62 ◽  
Author(s):  
M. Morakabati ◽  
Sh. Kheirandish ◽  
M. Aboutalebi ◽  
A. Karimi Taheri ◽  
S.M. Abbasi
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Hot Deformation Behavior ◽  
Niti Shape Memory Alloys

A Study on Tensile Deformation Behavior in Fe-Based Shape Memory Alloy by Rate Sensitive Transformation Kinetics Model

2016 ◽  
Vol 725 ◽  
pp. 77-81
Author(s):  
Anthony Budiaman ◽  
Kazuki Fujita ◽  
Takeshi Iwamoto
Keyword(s):  
Numerical Simulation ◽  
Shape Memory Alloy ◽  
Shape Memory ◽  
Deformation Behavior ◽  
Tensile Deformation ◽  
Rate Sensitivity ◽  
Kinetics Model ◽  
Strain Rates ◽  
Transformation Kinetics ◽  
Tensile Deformation Behavior

Fe-based shape memory alloy (Fe-SMA) shows a shape memory effect (SME) governed by forward and reverse stress-induced martensitic transformation (SIMT). Fe-SMA has been applied to joints and dampers utilized at various strain rates. To utilize Fe-SMA better, it is necessary to understand the mechanical properties in a wide range of strain rate. In previous study, the results of a tensile test at various strain rates show a rate-sensitivity, however, the mechanism of rate-sensitive tensile deformation behavior is still unclear. Thus, a numerical simulation using a transformation kinetics model is needed to clarify the mechanism. Some transformation kinetics models have been proposed, however, the rate sensitivity cannot be included. In this study, the rate sensitivity of volume fraction martensite is considered into the transformation kinetics model as an improvement of the past-proposed model. The numerical simulation of the uniaxial tensile test at various strain rates is performed to reproduce transformation behavior of the martensite phase. Then, the model is validated by comparing to the experimental results. Afterwards, the mechanism of rate-sensitive tensile deformation behavior of Fe-SMA is discussed.

Behavio of Supeaplastically Extruded Cu-26wt%Zn–3.5wt%Al Shape Memory Alloy

1990 ◽  
Vol 196 ◽  
Author(s):  
Zheng Zhengyt ◽  
Zhcng Weijian ◽  
Lin Fuzeng ◽  
Chew Yingsheng
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory Alloys ◽  
Strain Rate ◽  
Shape Memory ◽  
Shape Memory Effect ◽  
Memory Effect ◽  
Strain Rate Sensitivity ◽  
Rate Sensitivity ◽  
Heat Treated

ABSTRACTThe influence of superplastic extrusion on the microstructures and the shape memory effect of the Cu-Zn-Al shape memory alloys has been investigated. The shape memory alloy Cu-26%wt%Zn-3.5wt%Al is superplastio with an index of strain rate sensitivity n = 0.48 at 600°C, at a strain of . After extrusion under the superplastio condition the miorostruotures are improved and no cavities are observed. The superplastically extruded specimens of this alloy were heat-treated to obtain the shape memory effect. These specimens indicate that no deterioration of shape memory effect of the alloy is induced by the superplastio extrusion and the shape memory effect of the alloy is somewhat improved.

scholarly journals Deformation Behavior of TiNi Shape Memory Alloys. Cyclic Characteristics under Constant Temperature and Constant Stress.

1991 ◽  
Vol 40 (457) ◽  
pp. 1276-1282 ◽  
Author(s):  
Hisaaki TOBUSHI ◽  
Kimio KIMURA ◽  
Kikuaki TANAKA ◽  
Tatsuya HORI ◽  
Takayuki SAWADA
Keyword(s):  
Shape Memory Alloys ◽  
Shape Memory ◽  
Constant Temperature ◽  
Deformation Behavior ◽  
Constant Stress
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