Relation between heat treatment and mechanical properties for additively manufactured Aluminum Alloy 356 for Aerospace Applications

航空航天用增材制造铝合金 356 的热处理与机械性能之间的关系

• 批准号: 541425-2019
• 负责人: Brochu, Mathieu
• 金额: $ 5.1万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=691562
• 关键词: Relation; between; heat; treatment; mechanical

Additive Manufacturing (AM) refers to an emerging class of technologies that build 3D objects by the controlled addition of materials in a layer-by-layer fashion to produce objects at or near their final shape. This disruptive technology will significantly impact the aerospace industry. Aluminum alloys (AA) play a key role in lightweight aerospace components, where the bulk of the applications are covered by A356 alloy. However, to date, the bulk of the works have focused on traditional heat treatments, which were found to produce non-optimal mechanical response. In that context, this proposal will address the existing knowledge gaps linking the microstructure developed during AM-specific heat treatments with the mechanical properties with the aim of producing AM parts with improved static and cyclic mechanical properties. All industrial partners, i.e. AAC, Bell Helicopter Textron Canada Limited, Pratt Whitney Canada, Renishaw and FusiA are entering the project with specific objectives from their respective field of use. These include improving the knowledge to better process this alloy to increase the adoption rate of AM in the Al transformation sector. The vector used is to develop a low-cost avenue to provide spare legacy components and/or develop lightweight optimised parts to produce greener engines/aerostructures. Prof. Ma Brochu and Prof. My Brochu will strengthen their knowledge on AM in the field of new heat treatment development and understand the cyclic behaviour of AM parts.

增材制造（AM）是指通过以逐层方式控制添加材料来构建3D对象以生产最终形状或接近最终形状的对象的新兴技术。这项颠覆性技术将对航空航天工业产生重大影响。铝合金（AA）在轻型航空航天部件中起着关键作用，其中大部分应用都由A356合金覆盖。然而，到目前为止，大部分工作都集中在传统的热处理，这被发现产生非最佳的机械响应。在这种情况下，该提案将解决现有的知识差距，将AM特定热处理过程中形成的微观结构与机械性能联系起来，目的是生产具有改进的静态和循环机械性能的AM部件。所有工业合作伙伴，即AAC、Bell Helicopter Textron Canada Limited、Pratt Whitney Canada、Renishaw和FusiA，都将带着各自使用领域的具体目标参与该项目。这些措施包括提高知识，以更好地处理这种合金，以提高AM在铝转化领域的采用率。所使用的载体是开发一种低成本的途径，以提供备用的传统部件和/或开发轻量化优化部件，以生产更环保的发动机/飞机结构。Ma Brochu教授和My Brochu教授将加强他们在新热处理开发领域对AM的了解，并了解AM零件的循环行为。