Laser Beam Powder Bed Fusion of Co–Ni–Ga Shape Memory Alloy Using Single-Crystalline Substrate Material

Marius Horn, Christian Lauhoff, Moritz Kahlert, Adrian Guder, Philipp Krooß, Thomas Niendorf · Springer Science and Business Media LLC · 2025

This study explores the additive manufacturing of Co–Ni–Ga shape memory alloy using single-crystalline substrates to enhance its properties.

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Plain English summary

This research investigates the additive manufacturing of a Co–Ni–Ga shape memory alloy using laser beam powder bed fusion. The study emphasizes the importance of microstructure design to prevent premature failure in polycrystalline forms of the alloy. By using single-crystalline substrates as seed crystals, the researchers aim to improve the alloy's performance during processing.

Why this matters

The findings could lead to more reliable applications of shape memory alloys in various fields, addressing issues of failure in polycrystalline materials. This advancement is significant for industries that rely on the unique properties of shape memory alloys, potentially enhancing product durability and performance.

Key findings

  • Additive manufacturing of Co–Ni–Ga shape memory alloy was successfully achieved.
  • Single-crystalline substrates were used to improve processing outcomes.
  • Microstructure analysis showed the impact of processing parameters on solidification behavior.
  • The study established a processing routine for better shape memory effects.
  • The research addresses intergranular cracking issues in polycrystalline alloys.

What's new

The use of single-crystalline substrates during the additive manufacturing process to enhance the properties of Co–Ni–Ga shape memory alloy is a novel approach.

Limitations

The abstract does not provide details on the specific applications or the extent of the improvements achieved.

Commercial context

The research is still in the laboratory phase and has not yet demonstrated commercial viability.

Publication

Publisher
Springer Science and Business Media LLC
Publication date
August 12, 2025
Research type
Paper
License
https://creativecommons.org/licenses/by/4.0

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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