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High Temperature Deformation and Oxidation Behaviors of Inconel 718 Alloy Manufactured with Selective Laser Melting

机译：用选择性激光熔化制造的Inconel 718合金的高温变形和氧化行为

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This study investigated the high temperature compression and high temperature oxidation properties of Inconel 718 alloy manufactured using selective laser melting (SLM). The manufactured alloy underwent post-processing in two conditions (annealing, hot isostatic press (HIP)). The annealed sample featured a molten pool boundary as well as phases, y" phase in the grain and § phase formed along the grain boundary, while the HIP sample showed no molten pool boundary and carbides along the grain boundary[l-2]. HIP processing significantly reduced porosity, and the density of the HIP sample showed a slight increase. High temperature oxidation tests were performed at 900°C and 1000°C. The results showed greater oxidation resistance in the HIP sample compared to the annealed one. The room-high temperature compression tests were performed at 500°C, 650°C and 800°C. The results confirmed that the HIP sample had greater yield strength compared to the annealed one[3].
机译：本研究研究了使用选择性激光熔化（SLM）制造的Inconel 718合金的高温压缩和高温氧化性能。制造的合金在两个条件下进行后处理（退火，热等静压（臀部））。退火样品以熔池边界以及叶片中的晶片和沿晶界形成的颗粒相位为特征，而髋关节样本没有沿晶界界限和沿晶界的碳化物界面进行熔池[L-2]。臀部处理显着降低的孔隙率，髋关节样品的密度显示出略微增加。高温氧化试验在900℃和1000℃下进行。结果表明，与退火的旋转样品相比，髋关节样品中的抗氧化性较大。房间 - 高温压缩试验在500℃，650℃和800℃下进行。结果证实，与退火的一个[3]相比，髋关节样品具有更大的屈服强度。

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