Quantitatively probing the nanoscale plasticity of a single grain boundary

定量探测单个晶界的纳米级塑性

• 批准号: DE170100053
• 负责人: Dr Xianghai An
• 金额: $ 26.24万
• 依托单位: The University of Sydney
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Early Career Researcher Award
• 财政年份: 2017
• 资助国家: 澳大利亚
• 起止时间: 2017-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DE170100053
• 关键词: Quantitatively; probing; nanoscale; plasticity; single

This project aims to study grain boundaries, which are important in the mechanical behaviour of nanomaterials. However, the exact contribution of individual grain boundaries to mechanical properties is not well understood, affecting advanced materials design. This project will use in-situ deformation transmission electron microscopy techniques to reveal how individual grain boundaries deform and interact with dislocations, and to link directly the structures and orientation of individual grain boundaries with mechanical behaviours. Expected results are better structural design of advanced metallic nanomaterials with superior mechanical performance.

该项目旨在研究晶界，这对于纳米材料的机械行为很重要。然而，单个晶界对机械性能的确切贡献尚不清楚，这影响了先进材料的设计。该项目将使用原位变形透射电子显微镜技术来揭示单个晶界如何变形以及如何与位错相互作用，并将单个晶界的结构和方向与机械行为直接联系起来。预期结果是具有优异机械性能的先进金属纳米材料的更好结构设计。