Cost-effective and Environmentally-friendly Manufacturing of Magnesium-based Hybrid Nanocomposite with High Engineering Performance for Next-Generation Automotive Applications

经济高效且环保地制造具有高工程性能的镁基混合纳米复合材料，用于下一代汽车应用

• 批准号: RGPIN-2017-04921
• 负责人: Hu, Hongfa
• 金额: $ 2.04万
• 依托单位: University of Windsor
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=711296
• 关键词: Cost; effective; Environmentally; friendly; Manufacturing

Magnesium usage has significantly increased in vehicles for the past two decades due to its light weight in nature. From the viewpoint of engineering performance, magnesium alloys are not very competitive owing to their inferior mechanical and high-temperature and corrosion and wear properties in comparison with aluminum alloys and steels. Recent studies show that the addition of nanosize reinforcements enhances the mechanical properties without substantially affecting the plasticity of magnesium. However, applying the nanocomposites for real engineering applications, especially automotive components, is facing challenges and still in infancy because the high cost of nanoparticles and the complexity of experimental preparation processes make them less attractive to the highly competitive automotive industry than micro-size reinforcement and conventional approaches, i.e., stir casting and/or preform and squeeze casting. The overall objective of this research program is to develop cost-effective and environmentally-friendly manufacturing processes for fabrication of magnesium-based hybrid nanocomposite (MHNC) with high engineering performance in order for the automotive industry to make full use of their unique properties in next-generation structural and powertrain applications, which not only suffer high cyclic mechanical loading but also need to sustain harsh and corrosive environment during service. In the proposed program, two intertwined streams are planned. The first involves the fabrication of MHNCs by developing preform-squeeze casting technologies with appropriate selection of micron and nano-size reinforcements, and a comprehensive evaluation of processing-structure-property relationships. A second stream within this program of research will seek to exploit the advantages of the Plasma Electrolytic Oxidation (PEO) process and apply it to the magnesium-based hybrid composites for anti-corrosion and wear protection. The outcome of the project will maintain Canada as a world leader in producing light weight magnesium-based engineering components since Canada is presently hosting the largest magnesium casting producer in the world, Meridian Lightweight Technologies in Ontario. The success in the development of new technologies for potential advanced components will lead to an increase in magnesium component shipment in Canada as well as an expansion of world-wide use of Canadian value-added magnesium products.

在过去二十年中，由于其自​​然界的重量轻，车辆的使用率显着增加。 从工程性能的角度来看，镁合金与铝合金和钢相比，镁合金的劣等机械和高温和腐蚀和磨损特性并不是很具竞争力。 最近的研究表明，纳米化钢筋的添加可增强机械性能，而不会实质上影响镁的可塑性。但是，将纳米复合材料应用于实际工程应用，尤其是汽车组件，面临着挑战，并且仍处于婴儿期，因为纳米颗粒的高成本以及实验准备过程的复杂性使它们对高度竞争性的自动化行业的吸引力比微型自动化行业的吸引力降低了传统的方法，即搅拌铸造和/或预成型和挤压铸造。 该研究计划的总体目的是开发具有成本效益且环保的制造过程，用于制造具有高工程性能的基于镁的混合纳米复合材料（MHNC），以使汽车行业在下一步中充分利用其独特的物业 - 代理结构和动力总成应用，不仅遭受高环状机械负载，而且需要在服务过程中维持苛刻和腐蚀的环境。 在拟议的计划中，计划了两个相互交织的流。 首先涉及通过开发适当选择微米和纳米尺寸的增援的预成型铸造技术来制造MHNC，并对加工结构 - 培训关系进行全面评估。 该研究计划中的第二个流将试图利用等离子体电解氧化（PEO）工艺的优势，并将其应用于镁基杂种复合材料以进行抗腐蚀和磨损保护。 该项目的结果将保持加拿大作为生产基于镁的轻质工程组件的全球领导者，因为加拿大目前是世界上最大的镁铸造生产商，即安大略省的子午线轻量级技术。 在潜在高级组件开发的新技术方面的成功将导致加拿大镁零件发货的增加，并扩大全球使用加拿大增值镁产品。