Biomedical beta titanium alloy and preparation method thereof

    公开(公告)号:US12091731B2

    公开(公告)日:2024-09-17

    申请号:US17874266

    申请日:2022-07-26

    摘要: Disclosed is a biomedical β titanium alloy and a preparation method thereof. Its composition includes: Mo: 9.20-13.50%; Fe: 1.00-3.20%; Zr: 3.50-8.20%; Ta: 0-1.00%; the balance is Ti. The β titanium alloy is suitable for the laser additive manufacturing technology, and the prepared parts have a dense equiaxed grain structure with ultra-low grain size and a small number of columnar grain structures, which produces a fine-grain strengthening effect, and greatly improve the hardness and tribocorrosion performance of the alloy material. Also provided is a method for preparing a non-toxic, low-elasticity, and tribocorrosion resistant biomedical β titanium alloy material. A powder prepared from the above alloy components is subjected to a laser additive manufacturing technology to prepare a corresponding β titanium alloy with high-hardness, good tribocorrosion resistance and extremely low cytotoxicity. Moreover, the prepared material has good weldability and is a special metal alloy powder suitable for laser additive manufacturing.

    SINTERING METAL POWDER
    100.
    发明公开

    公开(公告)号:US20240149336A1

    公开(公告)日:2024-05-09

    申请号:US18495371

    申请日:2023-10-26

    IPC分类号: B22F1/054 B22F1/065

    摘要: A sintering metal powder, in which a particle size distribution curve has a first peak having a maximum value at a particle diameter D1 [μm] and a second peak having a maximum value at a particle diameter D2 [μm] which is larger than the particle diameter D1, where the particle size distribution curve is drawn by measuring a volume-based particle size distribution of the sintering metal powder with a laser diffraction scattering particle size distribution measurement device, and plotting the particle size distribution on an orthogonal coordinate system in which a horizontal axis is a particle diameter and a vertical axis is a relative particle amount. The particle diameter D2 is 30.0 μm or less, a height of the second peak is 0.60 or more and 3.00 or less when a height of the first peak is 1, and an average degree of circularity calculated from a captured image is 0.70 or more and 1.00 or less.