Knowledge based processing of novel clad/laminate metallic systems

加拿大在21世纪面临的最重大的全球挑战之一是在竞争激烈的初级金属开采和加工领域继续保持强大的经济地位。为了使加拿大继续在这一领域发挥全球领导作用，必须开发先进金属系统的新型和最先进的制造技术。拟议的研究计划将继续建立在申请人在实验测量和先进金属产品和制造工艺的基于知识的过程模型开发方面的研究专长领域。该计划将重点关注通过共铸生产的新型包层金属系统。第一次，通过共铸生产的覆层金属板，创造了以经济有效的方式定制板材相对于其中心的表面特性的可能性。目前商业上使用的覆层铝板的例子包括：用于热交换器的钎焊板和铝覆层系列航空航天合金。目前，这些复合板是通过一种昂贵的轧制粘合技术生产的，即在高压下将两片板轧制在一起以形成复合板。该研究项目将创建和开发一系列覆层铝板产品，并测量这些覆层产品对工业相关的热机械处理（如均质化、热轧/冷轧和最终热处理）的反应。特别强调的是理解在这些系统中靠近界面处发生的冶金反应，以及在制造过程中溶质在界面上的相互作用。

One of the most significant global challenges Canada faces in the 21st century is continuing to maintain a strong economic position in the highly competitive primary metals extraction and processing sector. In order for Canada to continue to play a global leadership role in this sector, it is imperative that novel and state of the art manufacturing techniques for advanced metallic systems are exploited.The proposed research program will continue to build on the applicant's area of research expertise in experimental measurements and the development of knowledge-based process models for advanced metallic products and manufacturing processes. This program will focus on novel clad metallic systems produced via co-casting. For the first time, clad metallic sheet produced via co-casting, creates the possibility of tailoring the surface properties of the sheet relative to its centre in a cost effective way. Current examples of clad aluminum sheet used commercially include: brazing sheet for heat exchangers and Al-clad series of aerospace alloys. Presently, these clad sheets are produced via a costly roll bonding technology whereby the two sheets are rolled together under high pressure to create the clad sheet. This research program will create and develop a range of clad aluminum sheet products and measure how these clad products respond to industrially relevant thermo-mechanical treatments such as homogenization, hot/cold rolling and final heat treatment. In particular emphasis will be placed on understanding the metallurgical reactions that occur close to the interface in these systems and the interaction of solute across the interface during manufacturing operations.