Development and Characterization of Amorphous and/or Nanochrystalline Al Alloys by Equal Channel Angular Pressing

等径角挤压（ECAP）技术将用于机械合金化/球磨粉末的固结。该项目的直接范围是通过廉价和灵活的机械合金化路线生产非晶/玻璃态合金，并通过ECAP将其固结成块体固体。我们打算开发纳米晶和/或非晶铝合金的ECAP（使用预合金锭或球磨粉末），表征的微观结构和力学性能，并建立了一个数学模型的机械研磨非晶/纳米晶粉末的ECAP固结。该模型有望阐明ECAP工艺在产生所需微观结构中的作用，并有助于优化工艺条件。

Equal channel angular pressing (ECAP) technique will be used for consolidating mechanically alloyed/milled powders. An immediate scope of the project is to produce amorphous/glassy alloys by inexpensive and flecible route of mechanical alloying and consolidate them into bulk solid by ECAP. We intend to develop nanocrystalline and/or amorphous Al alloys by ECAP (using either pre-alloyed ingot or ball-milled powder), characterize the microstructure and mechanical properties and develop a mathematical model of consolidation of mechanically milled amorphous/nanocrystalline powders by ECAP. The model is expected to elucidate the role of ECAP processing in producing the desired microstructure and to help optimizing the processing conditions.