Solidification structure evolution during processing Niobium silicide-based alloys

硅化铌基合金加工过程中凝固结构的演变

• 批准号: 1948230
• 金额: --
• 依托单位: University of Leicester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1948230
• 关键词: Solidification; structure; evolution; during; processing

Niobium silicide-based alloys, in the application of gas turbine blades, promise significant efficiency improvements compared to current Ni-based alloys. However, improvements in mechanical properties and oxidation resistance are needed. This study focuses on the manufacturability aspect of the powder feeding laser additive manufacturing (LAM) process to engineering Nb-Si based alloy samples. The relationship between solidification structure and processing parameters of the LAMed new alloys will be investigated through experimental and modelling approach.

在燃气涡轮机叶片的应用中，与当前的Ni基合金相比，铌硅化物基合金有望显著提高效率。然而，需要改进机械性能和抗氧化性。本研究着重于对工程Nb-Si基合金样品的送粉激光增材制造（LAM）工艺的可制造性方面。将通过实验和模拟方法研究LAMed新合金的凝固组织与工艺参数之间的关系。