Development of Post Additive Manufacturing Treatments to Enhance Mechanical Properties of IN 718 Superalloy

开发后增材制造处理以增强 IN 718 高温合金的机械性能

• 批准号: 560378-2020
• 负责人: Ojo, Olanrewaju
• 金额: $ 2.19万
• 依托单位: University of Manitoba
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 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=706593
• 关键词: Development; Post; Additive; Manufacturing; Treatments

Additive manufacturing (AM), commonly known as 3D printing, is revolutionizing the manufacturing process in many industries, due to its capability to produce innovative parts that are stronger and lighter. AM has become popular for producing parts from plastics but will have a much greater commercial impact when it can be used to produce advanced materials for innovative applications, including in the aerospace industry. AM can currently be used to produce metallic components with complicated geometries that are almost impractical to produce by other manufacturing processes. However, while a product can be produced with desired geometry and dimensions, meeting the rigorous performance requirements of the aerospace industry remains a considerable challenge. Nickel-based superalloys processed by AM for aeroengine applications are prone to having lower mechanical strength due to internal defects, such as porosity, cracks, and formation of deleterious microconstituent. Precision ADM is a Canadian company that helps their customer companies to take advantage of advanced digital manufacturing technologies, including AM. The aim of the proposed research is to use innovative AM thermo-mechanical treatments to effectively eliminate pores, cracks, residual stresses, deleterious microconstituent, and improve mechanical properties of the most widely used aerospace superalloy, IN 718. Artificial neural network (ANN) modeling will be used to optimize the AM parameters and a systematic study will be performed to use imposed pressure at elevated temperatures to eliminate defects, remove deleterious microconstituent, and enhance the formation of essential strengthening phases in the alloy. This will enable the development of an effective procedure that eradicates major problems that degrade mechanical properties and enable Precision ADM to provide specialized products with reliable properties to its customers. Developing AM capabilities in Canada will lead to major economic growth in the aerospace industry and aid Canada's competitiveness in advanced manufacturing technology.

增材制造（AM），通常称为3D打印，正在彻底改变制造过程 在许多行业中，由于其能够生产更坚固、更轻的创新部件。自有的 在用塑料生产零件方面变得流行，但当它能够 用于生产创新应用的先进材料，包括航空航天工业。是 目前可用于生产具有复杂几何形状的金属部件， 通过其他制造工艺生产。然而，尽管可以以期望的方式生产产品， 几何形状和尺寸，满足航空航天工业严格的性能要求，仍然是一个 相当大的挑战。航空发动机用镍基高温合金经AM处理后， 由于内部缺陷，如孔隙、裂纹和有害物质的形成， 微量组分Precision ADM是一家加拿大公司，帮助他们的客户公司采取 先进的数字化制造技术，包括AM。拟议研究的目的是 使用创新的AM热机械处理，有效消除孔隙、裂纹、残余应力， 有害的显微组织，并改善最广泛使用的航空高温合金的机械性能， 在718。人工神经网络（ANN）建模将用于优化AM参数， 将进行系统的研究，以在高温下使用施加的压力来消除缺陷， 去除有害的显微组织，促进合金中必要强化相的形成。 这将有助于制定一项有效的程序，根除导致退化的主要问题。 机械性能，使精密ADM提供具有可靠性能的专业产品， 客户在加拿大发展AM能力将导致航空航天领域的重大经济增长 工业和援助加拿大在先进制造技术的竞争力。