Improving the ductility of amorphous alloys via severe plastic deformation

通过剧烈塑性变形提高非晶合金的延展性

• 批准号: DP150101121
• 负责人: Prof Xiaozhou Liao
• 金额: $ 24.16万
• 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: 2015
• 资助国家: 澳大利亚
• 起止时间: 2015-01-01 至 2018-08-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP150101121
• 关键词: Improving; ductility; amorphous; alloys; via

Amorphous alloys are the strongest metallic materials. However, the brittle nature of the materials has significantly limited their applicability in reliability-critical structural applications. Despite significant worldwide efforts, improvement of the ductility has been limited to amorphous alloys with only a few specific compositions. This project aims to develop a universal approach to substantially enhancing the ductility of amorphous alloys through the application of severe plastic deformation, to explore the effect of severe plastic deformation on structure, and to reveal the fundamental mechanisms of the mechanical behaviour of amorphous alloys. The results are expected to enable structural design of amorphous alloys with excellent ductility.

非晶态合金是最强的金属材料。然而，材料的脆性性质大大限制了它们在可靠性关键结构应用中的适用性。尽管世界范围内做出了巨大的努力，但延展性的改善仅限于具有少数特定组成的非晶合金。本项目旨在开发一种通过大塑性变形显著提高非晶合金塑性的通用方法，探索大塑性变形对组织的影响，并揭示非晶合金力学行为的基本机制。研究结果为设计具有优良塑性的非晶合金提供了理论依据。