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Abstract In this paper, a computational model for description of the temperature- and composition-dependent Young's moduli in polycrystalline multi-component two-phase alloys was developed in the framework of CALculation of PHAse… Click to show full abstract
Abstract In this paper, a computational model for description of the temperature- and composition-dependent Young's moduli in polycrystalline multi-component two-phase alloys was developed in the framework of CALculation of PHAse Diagram (CALPHAD) approach, and implemented in a code. The combination of the two-step diffusion couple technique and the nanoindentation technique was then utilized to perform a high-throughput measurement of the temperature-dependent Young's moduli in polycrystalline γ+γʹ two-phase Ni-Al alloys over a wide composition range. Based on presently proposed model together with the experimental Young's moduli, a reliable set of CALPHAD Young's modulus descriptions for γ+γʹ Ni-Al alloys was finally obtained via the implemented code.
Journal Title: Materialia
Year Published: 2019
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