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首页> 外文期刊>Materials science & engineering >Design and fabrication of Ti-Zr-Hf-Cr-Mo and Ti-Zr-Hf-Co-Cr-Mo high-entropy alloys as metallic biomaterials
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Design and fabrication of Ti-Zr-Hf-Cr-Mo and Ti-Zr-Hf-Co-Cr-Mo high-entropy alloys as metallic biomaterials

机译：Ti-Zr-Hf-Cr-Mo和Ti-Zr-Hf-Co-Cr-Mo高熵合金作为金属生物材料的设计与制造

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摘要

Novel TiZrHfCr0.2Mo and TiZrHfCo0.07Cr0.07Mo high-entropy alloys for metallic biomaterials (bio-HEAs) were developed based on the combination of Ti-Nb-Ta-Zr-Mo alloy system and Co-Cr-Mo alloy system as commercially-used metallic biomaterials. Ti-Zr-Hf-Cr-Mo and Ti-Zr-Hf-Co-Cr-Mo bio-HEAs were designed using (a) a tree-like diagram for alloy development, (b) empirical alloy parameters for solid-solution-phase formation, and (c) thermodynamic calculations focused on solidification. The newly-developed bio-HEAs overcomes the limitation of classical metallic biomaterials by the improvement of (1) mechanical hardness and (ii) biocompatibility all together. The TiZrHfCr0.2Mo and TiZrHfCo0.07Cr0.07Mo bio-HEAs showed superior biocompatibility comparable to that of commercial-purity Ti. The superior biocompatibility, high mechanical hardness and low liquidus temperature for the material processing in TiZrHfCr0.2Mo and TiZrHfCo0.07Cr0.07Mo bio-HEAs compared with the Ti-Nb-Ta-Zr-Mo bio-HEAs gave the authenticity of the application of bio-HEAs for orthopedic implants with multiple functions.
机译：基于Ti-Nb-Ta-Zr-Mo合金体系和Co-Cr-Mo合金体系的组合，开发了用于金属生物材料（bio-HEA）的新型TiZrHfCr0.2Mo和TiZrHfCo0.07Cr0.07Mo高熵合金二手金属生物材料。 Ti-Zr-Hf-Cr-Mo和Ti-Zr-Hf-Co-Cr-Mo生物HEAs的设计采用（a）合金开发的树状图，（b）固溶体的经验合金参数- （c）集中于凝固的热力学计算。新开发的bio-HEA通过同时提高（1）机械硬度和（ii）生物相容性，克服了传统金属生物材料的局限性。 TiZrHfCr0.2Mo和TiZrHfCo0.07Cr0.07Mo生物HEAs的生物相容性与市售Ti相当。与Ti-Nb-Ta-Zr-Mo生物HEA相比，TiZrHfCr0.2Mo和TiZrHfCo0.07Cr0.07Mo生物HEA的材料加工具有优异的生物相容性，较高的机械硬度和较低的液相线温度，从而提供了应用的真实性。生物HEA用于具有多种功能的骨科植入物。

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