Functional Behavior of NiTi Shape Memory Alloy Fabricated by Laser Metal Deposition

Carlo Alberto Biffi, Jacopo Fiocchi, Ausonio Tuissi, Rick Schildkamp, Constantinos Goulas, Mehrshad Mehrpouya · Springer Science and Business Media LLC · 2025

This study explores the functional performance of NiTi shape memory alloys fabricated by laser metal deposition, highlighting their potential for actuator applications.

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Plain English summary

This research investigates how NiTi shape memory alloys can be effectively produced using laser metal deposition (LMD) technology. The study evaluates the performance of these alloys under various loads and temperatures, demonstrating their shape memory effect and stable behavior without needing post-processing.

Why this matters

The ability to fabricate complex structures with shape memory alloys using LMD could revolutionize actuator applications in robotics and other fields. This technology offers a cost-effective and efficient method for producing advanced materials that can respond to environmental changes.

Key findings

  • LMD can produce fully dense NiTi shape memory alloy samples.
  • The samples exhibited a promising shape memory effect under varying loads and temperatures.
  • High-temperature mechanical cycling tests showed stable functional behavior.
  • No post-processing heat treatment was required for the additively manufactured samples.
  • LMD-fabricated NiTi components are suitable for actuator applications.

What's new

The study highlights the use of laser metal deposition to fabricate NiTi shape memory alloys, demonstrating their functional performance without the need for post-processing.

Limitations

The abstract does not provide details on the specific applications or limitations of the LMD process beyond the scope of the study.

Commercial context

The findings suggest potential for practical applications, but further development and testing may be needed for commercial use.

Publication

Publisher
Springer Science and Business Media LLC
Publication date
October 21, 2025
Research type
Paper
License
https://creativecommons.org/licenses/by/4.0

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Applications
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Method note: Summaries and ratings on this page are generated by AI from the abstract only. Read the original paper for full context. · Model: gpt-4o-mini-2024-07-18