What is it about?
To describe the Fe-based shape memory alloy material characteristic through the transformation kinetics model. Past model is not sufficient to describe the material since it does not show any rate sensitivity. Therefore, a new transformation kinetics model should be rate sensitive. In this study, a new parameter is considered to improve the existing model.
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Why is it important?
Fe-based shape memory alloy has been used as pipe joints, damper, fish plates, etc. However, the material deformation behavior at higher strain rate is still unknown. These products such as pipe joints are open to various strain rate due to vehicle, environment, or even natural disaster. One way to improve the material utilization is through computer simulation. Thus, the accurate model of the material is needed.
Perspectives
I think the new parameter that is considered in this model is still insufficient and other parameters should also be added such as thermal effect and plastic hardening.
Anthony Budiaman
Hiroshima Daigaku
Read the Original
This page is a summary of: A Study on Tensile Deformation Behavior in Fe-Based Shape Memory Alloy by Rate Sensitive Transformation Kinetics Model, Key Engineering Materials, December 2016, Trans Tech Publications,
DOI: 10.4028/www.scientific.net/kem.725.77.
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