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如何影响材料的力学性能，探索非均质结构相对于均质结构具有优越力学性能的机制。具有非均相结构的材料表现出优异的力学性能，部分原因是多种变形机制同时激活。层错能对材料的变形机制起着至关重要的作用，但其对非均相结构材料力学性能的影响机制尚不清楚。该项目有望为具有最佳力学性能的异质金属结构的结构和成分设计提供指导，对澳大利亚冶金及相关行业具有重要意义。