Improving mechanical properties through heterogeneous structures

通过异质结构提高机械性能

• 批准号: DP190102243
• 负责人: Prof Xiaozhou Liao
• 金额: $ 25.3万
• 依托单位: The University of Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2019
• 资助国家: 澳大利亚
• 起止时间: 2019-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP190102243
• 关键词: Improving; mechanical; properties; through; heterogeneous

This project aims to explore the mechanisms of how heterogeneous structures have superior mechanical properties relative to homogenous structures by investigating how stacking fault energy affects the mechanical properties of materials. Materials with heterogeneous structures demonstrate superior mechanical properties, partly due to the simultaneous activation of multiple deformation mechanisms. Stacking fault energy plays a critical role in determining deformation mechanisms, yet the mechanism of this effect on the mechanical properties of materials with heterogeneous structures is not understood. This project is expected to provide guidance in structural and compositional design of heterogeneous metallic structures with optimum mechanical properties, which will significantly benefit Australian metallurgical and related industries.

本项目旨在通过研究层错能对材料力学性能的影响，探索非均质结构相对于均质结构具有上级力学性能的机理。具有异质结构的材料表现出上级机械性能，部分原因是多种变形机制的同时激活。层错能在确定变形机制中起着关键作用，但这种影响对具有非均匀结构的材料的力学性能的机制尚不清楚。该项目预计将为具有最佳机械性能的异质金属结构的结构和成分设计提供指导，这将使澳大利亚冶金和相关行业受益匪浅。