The evolution of delta-phase in a superplastic Inconel 718 alloy
Source abstract
Abstract
An Inconel 718 sheet alloy was tested in tension at a temperature of 965°C and an initial strain rate of 10−4 s−1 corresponding to the conditions for optimum superplastic deformation. Detailed observations and quantitative measurements record the evolution of the δ-phase during tensile deformation. The experiments show that the total precipitation of the δ-phase increases with strain but there is a decrease with strain in the number density of the needle/plate δ-phase particles and a corresponding increase with strain in the number density of the blocky/globular δ-phase particles.
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Research context
OpenAlex topics: Metallurgy and Material Forming · Microstructure and mechanical properties · Aluminum Alloy Microstructure Properties
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