ABSTRACT Precipitation hardenable metastable-beta type Ti–Nb–Cu alloy was produced by powder metallurgy for implant applications. Specimens were sintered, quenched and aged in a single-step process to enhance the mechanical properties. Sinter-aging combines the sintering, quenching and aging in a single step. This process reduces the cost of operation. Although, there are studies about the aging or sinter-hardening of titanium, there is no study on the sinter-aging of the titanium or any other metals. The effects of process parameters (sintering temperature, cooling rate and aging) on the mechanical properties were investigated. Young’s modulus and strength values were enhanced with increasing sintering temperature and cooling rate. Strength and elastic modulus values were increased with increasing aging temperature. Increasing Cu content lowered the corrosion potential and increased the current density. Metal release values are not higher than the reference levels in the body.

中文翻译：

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亚稳态β型Ti-Nb-Cu合金的一步烧结时效热处理

摘要 沉淀硬化亚稳态-β 型 Ti-Nb-Cu 合金是通过粉末冶金生产的，用于植入物应用。试样在一个单一的步骤过程中被烧结、淬火和时效以提高机械性能。烧结时效将烧结、淬火和时效结合在一个步骤中。这个过程降低了操作成本。虽然，有关于钛的时效或烧结硬化的研究，但没有关于钛或任何其他金属的烧结时效的研究。研究了工艺参数（烧结温度、冷却速度和时效）对力学性能的影响。杨氏模量和强度值随着烧结温度和冷却速度的增加而增加。强度和弹性模量值随着老化温度的升高而增加。增加Cu含量降低了腐蚀电位并增加了电流密度。金属释放值不高于体内参考水平。