Creep-resistant nickel, cobalt based superalloys, selected for a high-speed flight application, deposited using Wire + Arc Additive Manufacturing (WAAM), was reported. Three different alloys, Haynes 188, Inconel 718, and Rene 41, were deposited, and tested for their high-temperature tensile properties, and the results compared with wrought data. The alloys were tested from ambient temperature to 1000°C in their as-deposited condition and after undergoing industry standard age-hardening and solutionising heat-treatments, to down select the best performing alloy under two different processing conditions. The mechanical strength of the alloys fell short of the maximum achievable in wrought condition. Precipitation-strengthened alloys, Inconel 718 and Rene 41 were found to have underperformed the most significantly, whereas solid-solution-strengthened Haynes 188 suffered the least due to WAAM.

据报道，抗蠕变镍钴基高温合金被选用于高速飞行应用，并使用焊丝 + 电弧增材制造 (WAAM) 进行沉积。沉积了三种不同的合金：Haynes 188、Inconel 718 和 Rene 41，并测试了它们的高温拉伸性能，并将结果与​​锻造数据进行了比较。这些合金在沉积状态下从环境温度到 1000°C 进行了测试，并在经过行业标准时效硬化和固溶热处理后，在两种不同的加工条件下选择了性能最佳的合金。合金的机械强度未达到锻造条件下可达到的最大机械强度。沉淀强化合金、Inconel 718 和 Rene 41 的性能表现最差，