Development and characterization of biodegradable FeMnAg-materials used for the SLM-process

用于 SLM 工艺的可生物降解 FeMnAg 材料的开发和表征

• 批准号: 414365989
• 负责人: Professor Dr.-Ing. Guido Grundmeier
• 金额: --
• 依托单位: Institut für Pharmakologie, Toxikologie und Pharmazie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/414365989?language=en
• 关键词: Development; characterization; biodegradable; FeMnAg; materials

The aim of the research project is to develop and characterize bioresorbable FeMnAg-alloys and their additive manufacturing qualification, specifically in selective laser melting. The cooperative approach includes the development, production and characterization of additively manufactured structures made of conventionally immiscible alloys with strongly different melting points such as FeAg. Because of the potential application of resorbable implants in biomedical engineering, the biocompatibility and lower degradation rates of these structures compared to pure iron alloys are of particular interest aside from consistent production.These new and innovative alloys present novel challenges to process management in selective laser melting and in the post-processing of the components. In addition to the microstructural properties, the distribution, including size, structure and shape of the alloying partner, must be adjusted to control degradation rates. Since particles released into the tissue during the implant’s degradation will be phagocytized, they must consist of a modified, biocompatible, non-corrosion-resistant noble metal alloy which still needs to be developed. The interaction of the alloying elements, specifically manganese, with the noble metal must be addressed. Due to its antibacterial effect, investigations will begin with silver as the main alloying element.

该研究项目的目的是开发和表征可生物吸收的 FeMnAg 合金及其增材制造资格，特别是在选择性激光熔化方面，合作方法包括开发、生产和表征由具有不同熔点的传统不混溶合金制成的增材制造结构。由于可吸收植入物在生物医学工程中的潜在应用，除了一致的生产之外，与纯铁合金相比，这些结构的生物相容性和较低的降解率特别令人感兴趣。新型创新合金对选择性激光熔化和部件后处理的工艺管理提出了新的挑战，除了微观结构特性外，还必须调整合金伙伴的分布，包括尺寸、结构和形状。由于植入物降解期间进入组织的颗粒将被吞噬，因此它们必须由改良的、生物相容的、不耐腐蚀的贵金属合金组成，该合金仍需要开发，特别是合金元素的相互作用。锰作为贵金属必须加以解决，由于其抗菌作用，研究将从银作为主要合金元素开始。