Synergetic interactions between metal powder tailoring, additive manufacturing and heat treatment

金属粉末定制、增材制造和热处理之间的协同相互作用

• 批准号: RGPIN-2019-05296
• 负责人: Brochu, Mathieu
• 金额: $ 5.54万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=738177
• 关键词: Synergetic; interactions; between; metal; powder

Prof. Brochu has focused his entire research career on the synergic and integrative multi-disciplinary optimisation linking powder metallurgy, rapid solidification welding and additive manufacturing to democratise advanced materials and manufacturing processes. To realise Prof. Brochu's long term research vision, this current DG proposal involves integrating, solving and optimizing the fundamental competitive interactions between the starting materials, alloy composition and its solidification, processing strategies and post-processing heat treatments. The innovative research program was designed to encompass four short term objectives: (1) Linking powder passivation and surface quality to their melting/sintering behavior, in order to address the knowledge gap corresponding to the variability in powder surface properties that is ultimately one of the causes for defect development during AM. (2) High strength AM alloys, in order to develop new AM-designed self-healing alloys that will increase the currently restraint AM materials offering. (3) LPBF of parts with controlled crystallographic orientation, in order to provide a faster and lower-cost alternative route to manufacture directionally solidified or single crystal components, transformative for the aerospace industry. (4) Linking post-AM thermal processes to deleterious microstructure development, in order to develop new heat treatments adapted to the AM microstructure to prevent the development of the deleterious phases negatively impacting the cyclic mechanical properties. The DG program plans to train 3PDFs, 3 PhDs and 2 MEngs students that will gain synergetic and multi-disciplinary skills encompassing experimentation, coding and modeling. Specifically, cutting edge knowledge and critical skills related to the surface characterisation, optimisation of AM protocols, materials characterisation, modeling of solidification orientation and solid-state phase transformation will be gained by the different HQPs. The DG program, resulting in a highly skilled and knowledgeabled workforce, will transform several fields including metal powder manufacturing, AM printing bureau, original equipment manufacturers, maintenance, repair and overhaul companies, heat treatment-specialised companies, etc. McGill, located in Montreal, is central to these industrial sectors contributing to the aerospace cluster and related supply chain.

Brochu教授将他的整个研究职业集中在协同和综合的多学科优化上，将粉末冶金，快速固化焊接和增材制造联系起来，以使高级材料和制造过程民主化。为了实现Brochu教授的长期研究愿景，目前的DG提案涉及整合，解决和优化起始材料，合金组成及其固化，加工策略和后处理热处理之间的基本竞争相互作用。 创新的研究计划旨在涵盖四个短期目标：（1）将粉末钝化和表面质量与其熔化/烧结行为联系起来，以解决与粉末表面特性变异性相对应的知识差距，这最终是AM期间缺陷发展的原因之一。 （2）高强度AM合金，以开发新设计的自我修复合金，以增加当前约束的AM材料产品。 （3）具有受控晶体学取向的零件LPBF，以提供更快，更低成本的替代途径，用于制造方向固化或单晶组件，并为航空航天行业进行变化。 （4）将后AM热过程与有害的微观结构开发联系起来，以开发适合AM微观结构的新热处理，以防止有害阶段的发展对环状机械性能产生负面影响。 DG计划计划培训3PDF，3个博士学位和2名Mengs学生，这些学生将获得包括实验，编码和建模的协同和多学科技能。具体而言，与表面表征，AM协议的优化，材料表征，固化取向和固态相变的建模有关的前沿知识和关键技能将由不同的HQP获得。 DG计划导致了高技能和知识的劳动力，将改变几个领域，包括金属粉末制造，印刷局，原始设备制造商，维护，维修和大修公司，热处理特定的公司等。位于蒙特利尔的McGill，位于蒙特利尔的McGill，是这些工业领域的核心，是这些工业领域的核心。