Hot deformation behavior of Fe–28Ni–17Co-11.5Al-2.5Ta-0.05B (at.%) shape memory alloy by isothermal compression

2019 ◽  
Vol 115 ◽  
pp. 106632 ◽  
Author(s):  
S.H. Adarsh ◽  
V. Sampath
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Isothermal Compression ◽  
Hot Deformation Behavior

Hot deformation behavior of a CuAlMn shape memory alloy

2020 ◽  
Vol 845 ◽  
pp. 156161
Author(s):  
Pang Yong ◽  
Xiao Zhu ◽  
Jia Yanlin ◽  
Zhang Rui ◽  
Yi Jiang ◽  
...  
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Hot Deformation Behavior

Study on Hot Deformation Behavior of TiNiFe Shape Memory Alloy

2011 ◽  
Vol 393-395 ◽  
pp. 312-318
Author(s):  
Qiang Liu ◽  
Xiang Qian Yin ◽  
Bo Duan ◽  
Sheng Ying Shong ◽  
Yao Rong Feng
Keyword(s):  
Shape Memory Alloy ◽  
Strain Rate ◽  
Shape Memory ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Linear Regression Analysis ◽  
Hot Compression ◽  
Hot Deformation Behavior ◽  
Hot Compression Deformation ◽  
Compression Deformation

The hot deformation behavior of TiNiFe shape memory alloy were investigated by isothermal single-pass compression on Gleeble-3500 thermal simulator at the temperature range of 800°C to 1050°C and the strain rate range of 0.01s-1 to 10s-1. The results showed that the true stress-strain curves of TiNiFe shape memory alloy increase with decreasing deformation temperature and increasing strain rate, which indicating that the hot deformations of these conditions are dynamic recrystallization. The hot compression deformation of TiNiFe shape memory alloy can be represented by Arrhenius model. The constitutive equation of TiNiFe shape memory alloy under hot compression deformation is calculated by a linear regression analysis. The activation energy for hot deformation of the experimental steel is 202.54kJ/mol.

Flow behavior and microstructure evolution of PM Ti-5553 alloy during 0.1 s−1 hot deformation

2019 ◽  
Vol 34 (01n03) ◽  
pp. 2040026
Author(s):  
Qinyang Zhao ◽  
Fei Yang ◽  
Rob Torrens ◽  
Leandro Bolzoni
Keyword(s):  
Hot Deformation ◽  
Deformation Behavior ◽  
Dynamic Recovery ◽  
Flow Behavior ◽  
Intermediate Strain Rate ◽  
Isothermal Compression ◽  
Flow Localization ◽  
Hot Deformation Behavior ◽  
Deformation Degree ◽  
Dynamic Morphology

The hot deformation behavior of powder metallurgy Ti-5Al-5V-5Mo-3Cr (Ti-5553) alloy was investigated by isothermal compression test at the wide temperature range of [Formula: see text]–[Formula: see text]C, under an intermediate strain rate of 0.1 s[Formula: see text], and with the sample deformation degree of 30%, 50% and 70%. Results suggested that the flow stress was very sensitive to the deformation variables and it decreased with increasing the deformation temperature. Flow localization occurred when the temperature was lower than [Formula: see text]C, accompanied by the dynamic morphology changing of [Formula: see text] phase. Dynamic recovery (DRV) features appeared when the temperature was over [Formula: see text]C, while dynamic recrystallization (DRX) took a more important role than DRV for the alloy compressed at [Formula: see text]–[Formula: see text]C.

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