Thermal and Structural Properties of Shape Memory Alloys
A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Metallic Functional Materials".
Deadline for manuscript submissions: closed (29 February 2024) | Viewed by 1555
Special Issue Editors
Interests: shape memory alloys; shape memory effect; pseudoelastic; thermoelastic; martensitic transformation
Special Issue Information
Dear Colleagues,
Shape memory alloys (SMAs) are one of the most important classes of active materials that can memorize a predefined shape or show superelastic strain. In fact, a temperature increment can lead to shape recovery, therefore resulting in high actuation energy densities. In addition, applied mechanical loading subjects SMAs to a reversible hysteretic shape change, enabling them to absorb and damp mechanical energy. These unique features of SMAs have made them popular for many functional applications: impact absorption or sensing and actuation in a wide range of sectors such as biomedical, aerospace, energy, automobile industries and civil engineering.
Different alloys may exhibit the shape memory effect (SME), among which NiTi, Cu, Ti and Fe-based alloys are the most popular. Thermoelastic martensitic transformation is the core mechanism of the SME, which distinguishes these alloys from other alloys representing conventional martensitic phase transformation. Therefore, the chemical composition, microstructure, and thermal and structural properties of alloys are the important characteristic variables which determine the shape memory behavior.
The aim of this Special Issue is to present the work conducted on different SMAs by considering important variables such as chemical composition, microstructure and thermal properties. Experts are invited to submit papers related to experimental research, applications, simulation and modelling of the various aspects of SMAs. In addition, studies on the effect of new processes such as additive manufacturing on the microstructure and SME are also welcome.
Prof. Dr. Mahmoud Nili Ahmadabadi
Dr. Hamed Shahmir
Guest Editors
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Keywords
- shape memory alloys
- martensitic transformation
- thermo-mechanical behavior
- shape memory effect
- superelasticity
- elastocaloric effect
- hysteresis behavior
- actuation system
- vibration control
- functional properties
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