SBIR Phase I: Manufacture of Structural Magnesium MMC with Nanoparticles by Friction Stir Processing

SBIR 第一阶段：通过搅拌摩擦加工制造纳米颗粒结构镁 MMC

• 批准号: 1013482
• 负责人: Allen Roche
• 金额: $ 15万
• 依托单位: Vinci Technology Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2011-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1013482&HistoricalAwards=false
• 关键词: SBIR; Phase; Manufacture; Structural; Magnesium

This Small Business Innovation Research (SBIR) Phase I project aims to develop a low-cost fabrication technique for producing high-strength, creep-resistant magnesium material for structural applications in vehicles and aircraft. The properties of magnesium are significantly improved by introducing nanoparticles (NPs) into the metal matrix. Current techniques for producing nanoparticle-reinforced metal matrix composites (NPMMCs) involve multiple processing steps leading to high manufacturing cost or result in the clustering and agglomeration of the nanoparticulate reinforcement. As a result, the widespread application of magnesium nanocomposites in commercial structural applications has been severely restricted. We will investigate the feasibility of a novel friction stir process (FSP) for producing magnesium NPMMC?s for structural applications. Phase I of this research will focus on improving the strength and creep resistance of magnesium alloys so that scale-up and commercialization can be pursued in Phase II. The goal of this research is to produce material suitable for structural applications in the form of plate and master alloy material. The plate material can be further processed into sheet, tubes, forged blanks and machined parts. Material with a high volume percentage of nanoparticles will be used as a master alloy in casting operations to produce large net shaped components.The broader impact/commercial potential of this project is concerned with the reduction of both fuel consumption and harmful emissions in the automotive and aerospace industries. Reducing the overall weight of vehicles and aircraft is key to achieving these goals and magnesium alloys, with their low density, can often be a viable proposition. However, the widespread use of magnesium is limited by its relatively poor mechanical and high temperature creep properties. The proposed effort will significantly reduce the cost of fabrication of structural Mg components, enabling widespread application in the automotive and aerospace industries. Additionally, the manufacturing technology developed will provide a cost advantage over foreign competition to manufacturers of structural automotive parts.

该小型企业创新研究 (SBIR) 第一阶段项目旨在开发一种低成本制造技术，用于生产用于车辆和飞机结构应用的高强度、抗蠕变镁材料。 通过将纳米粒子（NP）引入金属基体中，镁的性能得到显着改善。目前生产纳米颗粒增强金属基复合材料（NPMMC）的技术涉及多个加工步骤，导致制造成本较高或导致纳米颗粒增强材料聚集和团聚。因此，镁纳米复合材料在商业结构应用中的广泛应用受到了严重限制。我们将研究用于生产结构应用镁 NPMMC 的新型搅拌摩擦工艺 (FSP) 的可行性。该研究的第一阶段将侧重于提高镁合金的强度和抗蠕变性，以便在第二阶段实现规模化和商业化。这项研究的目标是生产适合结构应用的板材和中间合金材料形式的材料。板材可进一步加工成板材、管材、锻坯和机加工件。纳米粒子体积百分比高的材料将在铸造操作中用作母合金，以生产大型净成型部件。该项目更广泛的影响/商业潜力涉及减少汽车和汽车领域的燃料消耗和有害排放。航空航天工业。减轻车辆和飞机的总重量是实现这些目标的关键，而镁合金由于密度低，通常是一个可行的方案。然而，镁的广泛使用因其相对较差的机械性能和高温蠕变性能而受到限制。所提出的努力将显着降低结构镁部件的制造成本，从而使其在汽车和航空航天工业中得到广泛应用。此外，所开发的制造技术将为汽车结构件制造商提供相对于国外竞争的成本优势。