Engineered 3D Microstructures for Automotive Aluminum Extrusions

汽车铝型材的工程 3D 微观结构

• 批准号: 577351-2022
• 负责人: Poole, WarrenWJ
• 金额: $ 5.83万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=758182
• 关键词: Engineered; 3D; Microstructures; Automotive; Aluminum

In this proposal, we will address the need to engineer the microstructure of advanced automotive aluminium alloys to improve the energy efficiency of vehicles (e.g. increasing electric vehicle range and decreasing fuel consumption). This will be accomplished through a partnership between an established team of researchers from The University of British Columbia and Rio Tinto Aluminium. In particular, we will develop understanding of the underlying physical mechanisms that control fracture in energy absorption applications, e.g. in crash situations. We will use an experimental approach to systematically explore the effects of grain size/shape, crystallographic texture and second phase particles on the directional dependence of fracture properties using a careful experimental matrix of alloys with known processing histories. The proposal will take advantage of state-of-the-art characterization techniques currently being acquired and developed at UBC. These will allow: (1) unprecedented 3D characterization of microstructure (with the new Xe focused ion beam/electron microscope) (2) local strain measurements with high resolution digital image correlation and (2) testing of samples in the microscope for direct observation on the sequence of fracture events. Our results will inform simulations and guide alloy design via (1) new knowledge on the fundamental mechanisms which control fracture and ductility of advanced aluminum extrusion alloys which will be published in the scientific literature, (2) the training and education of 3 PhD students, 2 Masters students, 3 postdoctoral fellows and 1 research engineer in a field of critical importance to Canada and iii) the transfer of knowledge to our industry partner, Rio Tinto Aluminium who will commercialize results for the Canadian and global market.

在该提案中，我们将解决对先进汽车铝合金微观结构的设计需求，以提高车辆的能源效率（例如增加电动汽车的续航里程和降低燃料消耗）。这将通过不列颠哥伦比亚省大学和力拓铝业的一个成熟的研究团队之间的伙伴关系来实现。特别是，我们将发展的基本物理机制，控制能量吸收应用中的断裂的理解，例如在碰撞情况下。我们将使用一种实验方法，系统地探索晶粒尺寸/形状，晶体学织构和第二相粒子的断裂性能的方向依赖性的影响，使用一个仔细的实验矩阵与已知的处理历史的合金。该提案将利用UBC目前正在收购和开发的最先进的表征技术。这将允许：（1）前所未有的微观结构3D表征（使用新的双聚焦离子束/电子显微镜）（2）使用高分辨率数字图像相关的局部应变测量和（2）在显微镜中测试样品以直接观察断裂事件的顺序。我们的研究结果将通过以下方式为模拟提供信息并指导合金设计：（1）关于控制先进铝挤压合金断裂和延展性的基本机制的新知识，这些新知识将发表在科学文献中，（2）3名博士生，2名硕士生的培训和教育，3名博士后研究员和1名研究工程师在加拿大至关重要的领域和iii）知识转移到我们的行业合作伙伴，力拓铝业公司将为加拿大和全球市场提供商业化成果。