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Iron-Based Shape Memory Alloys in Construction: Research, Applications and Opportunities
Zhe-Xi Zhang1, Jie Zhang1, Honglei Wu1,2
1Department of Structural Engineering, College of Civil Engineering, Tongji University, Shanghai 200092, China.
Materials (Basel, Switzerland)
|March 10, 2022
Summary
Iron-based shape memory alloys (Fe-SMA) offer excellent properties like corrosion resistance and shape recovery for construction. Further research is needed to fully realize their potential in structural applications.
Area of Science:
- Materials Science
- Civil Engineering
- Metallography
Background:
- Iron-based shape memory alloys (Fe-SMA) are gaining traction in construction due to their beneficial properties.
- Pilot projects demonstrate the viability of Fe-SMA as a functional material in the construction sector.
Purpose of the Study:
- To review recent advancements in Fe-SMA research and design practices for construction.
- To compare the mechanical properties of Fe-SMA with conventional structural steel.
- To explore emerging applications and identify future research needs.
Main Methods:
- Literature review of recent developments in Fe-SMA research and design.
- Comparative analysis of mechanical properties between Fe-SMA and structural steel.
- Discussion of metallographic transformation mechanisms and novel applications.
Main Results:
- Fe-SMA exhibits superior corrosion resistance, shape recovery, plastic deformability, and fatigue resistance compared to conventional steel.
- Emerging applications include Fe-SMA-based prestressing/strengthening techniques and seismic-resistant components.
- Identified research gaps at material, component, and system levels.
Conclusions:
- Fe-SMA presents significant potential for diverse applications within the construction industry.
- Addressing identified research needs is crucial for widespread adoption and optimization of Fe-SMA.
- This review provides a comprehensive overview for both experts and newcomers in the field.
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