Hot Deformation Behavior of NiTiHf Shape Memory Alloy Under Hot Compression Test

2012 ◽  
Vol 21 (12) ◽  
pp. 2594-2599 ◽  
Author(s):  
Majid Belbasi ◽  
Mohammad T. Salehi ◽  
Seyed Ali Asghar Akbari Mousavi
Keyword(s):  
Shape Memory Alloy ◽  
Shape Memory ◽  
Compression Test ◽  
Hot Deformation ◽  
Deformation Behavior ◽  
Hot Compression ◽  
Hot Deformation Behavior ◽  
Hot Compression Test

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.

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

scholarly journals Hot Compression Behavior of New Al-6Mg and Al-8Mg Alloy with Improved Hot Workability Fabricated by Direct Chill Casting Method

Metals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 288
Author(s):  
Nam-Seok Kim ◽  
Kweon-Hoon Choi ◽  
Seung-Yoon Yang ◽  
Seong-Ho Ha ◽  
Young-Ok Yoon ◽  
...  
Keyword(s):  
Dynamic Recrystallization ◽  
Compression Test ◽  
Deformation Behavior ◽  
Hot Compression ◽  
High Temperature Deformation ◽  
Temperature Deformation ◽  
Strength Increase ◽  
Peak Strain ◽  
Hot Workability ◽  
Hot Compression Test

A hot compression test of new Al-6Mg and Al-8Mg alloys was conducted to understand the dynamic recrystallization (DRX) behavior by Mg contents. To investigate the hot workability of Al-Mg with high Mg contents, the hot deformation behavior of Al-6Mg and Al-8Mg alloys was analyzed by a hot compression test in the temperature range of 300–450 °C, and the strain rate range of 10−3–100/s. Subsequently, high-temperature deformation behavior was investigated through the processing map and microstructure observation. In this study, the results have shown that, as the Mg contents increase, the maximum and yield strength increase while rapid flow softening after the peak strain has been observed due to accelerated dynamic recrystallization (DRX). Finally, the increase of Mg contents affects an increase of heat dissipation efficiency to be an indicator of regular deformation.

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