传统粉末冶金技术制备骨种植体专用ti6al4v基材料

IF 1.9 4区材料科学 Q2 METALLURGY & METALLURGICAL ENGINEERING

Powder Metallurgy Pub Date : 2023-05-11 DOI:10.1080/00325899.2023.2211410

L. Olmos, D. Bouvard, O. Jiménez, J. Chávez, R. Macias

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引用次数: 1

摘要

本研究提出了一种制造具有特定特征的材料的方法。以Ti64合金粉末为基材，加入Ag、Ta、TiN和盐颗粒，获得不同的形貌。一个类似髋骨的部件被制造出来，包括一个高度多孔的Ti64/25Ta/5Ag核心和一个紧凑的Ti64/5Ag外壳，该外壳被认为可以改善腐蚀和骨整合。此外，在Ti64/10TiN复合材料中，更硬的覆盖表面应提高耐磨性。绿色组分在1260℃氩气中烧结。由于增加了孔隙度，其杨氏模量接近于骨的杨氏模量，这也提供了接近小梁骨的透气性。TiN的加入改善了模拟体液中的摩擦腐蚀行为。总之，所提出的加工路线能够生产出满足人类骨置换所需的特定特征的复杂部件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Fabrication of tailored Ti6Al4V-based materials by conventional powder metallurgy for bone implant applications

ABSTRACT This works proposes a methodology for fabricating materials with specific characteristics mimicking human bones. A Ti64 alloy powder was used as the base material and it was mixed with Ag, Ta, TiN and salt particles to obtain different features. A hip-bone like component was fabricated, including a highly porous core of Ti64/25Ta/5Ag and a compact outer shell of Ti64/5Ag that is supposed to improve corrosion and osseointegration. Besides, a harder cover surface in Ti64/10TiN composite should increase the wear resistance. The green component was sintered at 1260°C in argon. Its Young’s modulus was close to the one of bones due to the added porosity, which also provided a permeability close to the one reported for trabecular bones. Tribocorrosion behaviour in simulated body fluid was improved by TiN addition. In conclusion, the proposed processing route was able to produce complex components fulfilling specific features required for human bone replacement.

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来源期刊

Powder Metallurgy 工程技术-冶金工程

CiteScore

2.90

自引率

7.10%

发文量

审稿时长

3 months

期刊介绍： Powder Metallurgy is an international journal publishing peer-reviewed original research on the science and practice of powder metallurgy and particulate technology. Coverage includes metallic particulate materials, PM tool materials, hard materials, composites, and novel powder based materials.