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

该项目的重点是评估热成因钛合金粉末作为快速增长的增材制造（AM）领域的原料的适用性。本研究使用的增材制造技术是激光粉末床金属熔合（LPBF）技术。两种合金将使用LPBF技术进行加工：a) Ti64和TiAl （γ钛铝化物）。这种选择是基于公司最小化项目风险收益比的意图。一方面，ti64是应用最广泛的钛合金，与该合金lpbf制造相关的技术成熟度水平较高。另一方面，TiAl属于一类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可用。该项目的可交付成果包括：a) Ti64 lpbf构建组件的机械和几何特性；b)一组TiAl粉末激光熔合的优化参数，c) ti64和TiAl粉末的生产成本。

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.