Intermetallic phase formation in Al-alloyed high strength steels

本项目的中心目标是控制具有定制性能的铝合金高强度高延性钢中金属间化合物(B2型和L12型)的形成。在这个项目中，应该彻底了解金属间沉淀的机制。利用CALPHAD方法和实验验证，深入研究了复相钢中金属间化合物形成过程中的组织演变和元素分配。在了解金属间化合物形成机理的基础上，为控制和利用金属间化合物作为复相钢中的第二相提供了一个有效的方案。

The central objective of this project is to control the intermetallic compound (B2 type and L12 type) formation in Al-alloyed high strength high ductility steels with tailored properties. In this project, a thorough understanding on the intermetallic precipitation mechanisms should be achieved. The microstructure evolution and the elemental partitioning during the intermetallics formation in the steels with multiphase matrix are aimed to be intensively investigated by means of Calphad method and the experimental validations. Based on the knowledge of the intermetallics formation mechanisms, an effective scenario of controlling and utilization of the intermetallics as second phases in multiphase steels should be provided.