Tohoku University Technology: Co-based alloy powder for electron beam lamination shaping: T16-191
Able to obtain formed body with excellent corrosion & wear resistance, and high hardness & toughness
Co-based alloy has excellent corrosion and wear resistance, and it is widely used for biomaterial and casting mold material. However, it could not be used for industrial product requiring mechanical strength because the strength is lower than an iron-based material. Although the addition of nitrogen or carbon is known to increase the strength of Co-based alloy, it is not sufficient to use as an industrial product. The lamination shaping method using Co-based alloy powder as raw material is also known to product a body with complex shape having excellent corrosion and wear resistance, but the product fabricated by this method has still not enough strength to use as an industrial product. This invention is able to provide a Co-based alloy powder for electron beam lamination shaping with extremely high hardness & toughness which is comparable to that of a steel material, while keeping the corrosion and wear resistance of Co-based alloy. The Cobased alloy powder of this invention has a particle size of 1 to 200 mm. This invention enables the production of industrial product made by lamination shaping with high hardness & toughness while keeping the corrosion and wear resistance of Co-based alloy.
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The revenue generated from technology transfer is reinvested as new research funding for universities and researchers, and is utilized to create further research outcomes. To ensure the smooth operation of this cycle, known as the "Intellectual Creation Cycle," we will vigorously promote technology transfer. The types of seeds we handle include patents, know-how, databases, and programs. We have established a collaborative framework by signing basic technology transfer agreements with the following universities (as of June 1, 2025): Tohoku University, Hirosaki University, Iwate University, Akita University, Fukushima University, Yamagata University, Tohoku Gakuin University, Iwate Medical University, Fukushima Medical University, Aizu University, Miyagi University, Hokkaido University, Muroran Institute of Technology, and Showa Medical University.
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