Suitability of the plasma-atomized Ti64 and TiAl powders for the laser powder-bed fusion technology

等离子雾化 Ti64 和 TiAl 粉末对激光粉末床熔融技术的适用性

• 批准号: 508265-2017
• 负责人: Brailovski, Vladimir
• 金额: $ 1.82万
• 依托单位: École de technologie supérieure
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639438
• 关键词: Suitability; plasma; atomized; Ti64; TiAl

The project is focused on the evaluation of the suitability of the PyroGenesis titanium alloys powders as afeedstock for the rapidly growing sector of additive manufacturing (AM). The AM technology used in thisstudy is the laser powder-bed metal fusion (LPBF) technology.Two alloys will be processed using the LPBF technology: a) Ti64 and TiAl (gamma titanium aluminide). Thisselection is based on the intent of the company to minimize the project risk-to-benefit ratio. On one hand, Ti64is the most largely used titanium alloy, and the technology readiness level related to this alloy LPBFmanufacturing is high. On the other hand, TiAl belongs to an emerging class of high temperaturetitanium-based intermetallics, and this alloy is not yet available on the powder feedstock market.The deliverables of the project are: a) mechanical and geometric characteristics of Ti64 LPBF-builtcomponents; b) set of optimized parameters for laser fusion of TiAl powders, and c) production costs of Ti64and TiAl powders.

该项目的重点是评估PyroGenesis钛合金粉末作为快速增长的增材制造（AM）行业原料的适用性。本研究中使用的AM技术是激光粉末床金属熔化（LPBF）技术，使用LPBF技术将处理两种合金：a）Ti 64和TiAl（γ钛铝化物）。这种选择是基于公司的意图，以尽量减少项目的风险-收益比。一方面，Ti64是使用最广泛的钛合金，与该合金LPBF制造相关的技术成熟度很高。另一方面，TiAl属于一种新兴的高温钛基金属间化合物，这种合金尚未在粉末原料市场上销售。该项目的交付成果是：a）Ti 64 LPBF制造部件的机械和几何特性; B）一套优化的TiAl粉末激光熔化参数; c）Ti 64和TiAl粉末的生产成本。