Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química, Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911 Leganés, Madrid, Spain.
Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química, Universidad Carlos III de Madrid, Avda. de la Universidad, 30, 28911 Leganés, Madrid, Spain.
Mater Sci Eng C Mater Biol Appl. 2015 Apr;49:400-407. doi: 10.1016/j.msec.2015.01.043. Epub 2015 Jan 10.
Titanium and its alloys are characterized by an exceptional combination of properties like high strength, good corrosion resistance and biocompatibility which makes them suitable materials for biomedical prosthesis and devices. The wrought Ti-6Al-4V alloy is generally favored in comparison to other metallic biomaterials due to its relatively low elastic modulus and it has been long used to obtain products for biomedical applications. In this work an alternative route to fabricate biomedical implants made out of the Ti-6Al-4V alloy is investigated. Specifically, the feasibility of the conventional powder metallurgy route of cold uniaxial pressing and sintering is addressed by considering two types of powders (i.e. blended elemental and prealloyed). The characterization of physical properties, chemical analysis, mechanical behavior and microstructural analysis is carried out in-depth and the properties are correlated among them. On the base of the results found, the produced alloys are promising materials for biomedical applications as well as cheaper surgical devices and tools.
钛及其合金具有高强度、良好的耐腐蚀性和生物相容性等优异性能，是生物医学假体和器械的理想材料。与其他金属生物材料相比，锻造 Ti-6Al-4V 合金由于其弹性模量相对较低而受到青睐，并且长期以来一直用于获得用于生物医学应用的产品。在这项工作中，研究了用 Ti-6Al-4V 合金制造生物医学植入物的替代方法。具体来说，通过考虑两种类型的粉末（即混合元素粉末和预合金粉末）来研究常规粉末冶金冷单向压制和烧结的可行性。深入进行了物理性能、化学分析、力学行为和微观结构分析的表征，并对它们之间的性能进行了相关性研究。根据发现的结果，所生产的合金是生物医学应用以及更便宜的手术器械和工具的有前途的材料。
