Abstract We propose a new approach for the high-throughput experimental evaluation of the phase stability, mechanical and oxidation properties of a Ni-based superalloy. The Bridgman method is used to introduce the gradation of nine elements in a long distance (∼24 mm) and a wide range of microstructural features with η, μ and γ’ phase volume fractions in one sample. Nanoindentation and microstructural observations are utilized to extract the elastic modulus/hardness of a γ-γ’ two-phase structure and evaluate the oxidation layers in an oxidized sample. Our approach makes it possible to obtain huge number of datasets linked to the composition and microstructure of the superalloys.

中文翻译：

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使用成分分级单向凝固合金的镍基高温合金机械性能、抗氧化性和相稳定性的高通量映射方法

摘要 我们提出了一种对镍基高温合金的相稳定性、机械和氧化性能进行高通量实验评估的新方法。Bridgman 方法用于在一个样品中引入长距离 (~24 mm) 中九个元素的级配和各种具有 η、μ 和 γ' 相体积分数的微观结构特征。利用纳米压痕和微观结构观察来提取 γ-γ' 两相结构的弹性模量/硬度，并评估氧化样品中的氧化层。我们的方法可以获取与超级合金的成分和微观结构相关的大量数据集。