Additive manufacturing of a novel low-cost titanium alloy: enhancement of processing and properties for aerospace applications

金属部件的添加制造是一项新兴技术，将改变加拿大的制造业格局。加拿大在这一领域的成功不可或缺的是新材料的开发，这些材料是为AM期间发生的复杂物理过程量身定做的该项目将展示一种低成本的贝塔钛合金的潜力，这种合金非常适合AM过程中的快速凝固条件通过贝塔钛合金获得的增强强度，再加上通过使用预混合元素粉末/粉末冶金实现的成本节约，有可能在未来10年内扰乱航空航天工业的部件设计。 拟开展的研究分为两个方面的研究。第一个是通过丝-弧添加剂制造和随后的热处理生产的感兴趣的合金的结构-工艺-性能关系的发展。二是建立了相应的加工过程中组织演变和力学性能演变的模型。拟议研究计划的共同目标是确定通过添加制造生产贝塔钛合金的最佳工艺条件。通过这个产学研合作项目，将培养两名博士生。

Additive manufacturing of metal components is an emerging technology that will transform Canada's manufacturing landscape. Integral to Canada's success in this area is the development of new materials that are tailored to the complex physical processes occurring during AM. This project will demonstrate the potential of a low-cost beta titanium alloy that is ideally suited for the rapid solidification conditions present during AM. The enhanced strength achieved through beta-Ti alloys combined with the cost savings realized through the use of pre-mixed elemental powders/powder metallurgy has the potential to disrupt component design in the aerospace industry within the next 10 years. The proposed research is divided into two areas of study. The first is the development of a structure-process-properties relationship for the alloy of interest produced through wire-arc-additive manufacturing and then heat treating. The second is the corresponding modelling of structure evolution and mechanical property evolution during processing. The joint goal of the proposed research program is to identify the optimal processing conditions for producing beta-titanium alloys via additive manufacturing. Two PhD students will be trained through this university-industry collaborative research project.