Processing and performance of lattice composites (P2LaC)

这一合作伙伴关系的目标是在双金属铸件和金属-金属基复合材料(MMC)铸件的工艺、组织和性能方面产生新的知识。在网格结构的铸造和添加制造(AM)过程中，3D组件所经历的应力场将使用有限元建模(FEM)进行评估。具有3D网格结构的铸件的制造为复杂零件的设计和制造提供了自由。研究将分三个阶段进行。第1阶段(第1年和第2年)将是处理由双金属部件和连接到MMC的金属部件组成的钢瓶的实验室样品。将对两个系统的机械性能进行评估。在第二阶段(1至4年)，将使用有限元对不同的网格结构架构进行评估。第三阶段(第二年到第四年)将解决不同成分的候选晶格和合金的填充问题：铬白口铁和碳钢，NiBSi用WC复合材料和碳钢填充。随后将进行填充密度、微观结构和磨损的评估。将使用铸造厂(待定)来制造测试部件和样品。随后将由合作伙伴对部件进行微观结构表征和现场测试。对于HQP，将为该项目招募两名研究生，并将由两名研究助理的兼职工作来贡献。毕业生将从大量潜在申请者中招聘，以确保招聘人口的包容性和多样性。

The goal of this partnership is to generate new knowledge on the processing, microstructure and properties of a bi-metal casting and metal-metal matrix composite (MMC) castings. The stress field experienced by a 3D component processed for Castings and Additive Manufacturing (AM) of lattice structures will be evaluated using Finite Element Modelling (FEM). Manufacturing of the castings with 3D lattice structures provides freedom of design and manufacture of complex parts. The research will be carried out in three phases. Phase 1 (years 1 and 2) will be the processing of laboratory samples of cylinders composed of a bi-metallic part, and a metallic part joined to an MMC. The mechanical properties of both systems will be evaluated. In Phase 2 (years 1 to 4), different lattice structural architectures will be evaluated using FEM. The most promising structure from FEM results will be compared with built lattices in Phase 3. Phase 3 (years 2 to 4) will address the filling of the candidate lattice and alloy with varying compositions: Cr-white iron and carbon steel, and NiBSi with WC composite and carbon steel. Subsequent evaluation of fill density, microstructure, and wear will be carried out. A foundry (TBD) will be used to make test components and samples. This will be followed by microstructural characterization of the component and field testing by the Partner. For HQP, two graduate students will be recruited for the project and partial time of two Research Associates will contribute. The graduate studetns will be recruited from a wide pool of potential applicants in order to ensure inclusivity and diversity of the recruited population.