低成本和高强度的--氧合金,通过火花等离子体烧结制备
Hongliang Xiang1,2, Qinchang Wu1, Weixuan You1
1School of Advanced Manufacturing, Fuzhou University, Jinjiang 362251, China.
Materials (Basel, Switzerland)
|November 27, 2025
概括
研究人员开发了一种用于医疗植入物的新型--氧 (Ti-Zr-O) 合金. 这种具有成本效益的合金显著提高了产强度,同时保持了良好的柔性,为生物医学应用提供了有前途的替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 生物医学工程 生物医学工程
- 金工业是金工业的一个方面.
背景情况:
- 由于生物相容性,- (Ti-Zr) 合金被青用于医疗植入物.
- 提高Ti-Zr合金性能通常涉及高成本或有毒元素.
研究的目的:
- 开发一种具有成本效益和无毒的方法,使用氧气加强Ti-Zr合金.
- 研究氧气添加对Ti-Zr合金微观结构和机械性能的影响.
主要方法:
- 使用控制氧含量的火花等离子烧结 (SPS) 制造Ti-Zr-O合金.
- 使用先进技术对合金密度,微观结构和相位进行表征.
- 评估机械性能,包括压力强度和应变.
主要成果:
- 在烧结的Ti-Zr-O样本中达到>99%的相对密度.
- 添加氧气提炼了颗粒结构,并保持了均的α-Ti相.
- 压缩度从619.24 MPa增加到1634.18 MPa,氧含量增加.
- 通过氧气强化固溶液被确定为主要的强化机制.
结论:
- 这种新型Ti-Zr-O合金表现出优越的承强度和有利的可塑性.
- 氧是提高Ti-Zr合金性能的一种有效,低成本的元素.
- 这项研究为开发用于生物医学应用的先进,负担得起的Ti-Zr合金提供了可行的途径.
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