Deformation behavior and different microstructure evolution during high-temperature compression of a Ti3Al-based alloy
Source abstract
Abstract
The high-temperature deformation behavior and microstructure evolution of Ti-14Al-21Nb alloy were studied by thermal compression at different strain rates and temperatures. Based on the experimental data, the constitutive equation of this titanium alloy under the experimental conditions was established, and the result fits the experimental stress well. Processing map and microstructure development were researched, microstructure evolution law is closely related to deformation parameters. The schematic of microstructure evolution has been obtained based on a combination of processing map and microstructure evolution, which can be used to predict the microstructure development. There are five domains in the processing map, which correspond to different microstructure evolution mechanisms. Lamellar α phase fracturing at 1080 °C and 0.05–0.5 s−1, and the globularization of α phase occur gradually with the decrease of strain rate. Dynamic recrystallization is the main microstructure evolution mechanism at the strain rates of 0.005–0.05 s−1and the temperatures of 1140–1170 °C.Graphical abstract
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallurgy and Material Forming · Titanium Alloys Microstructure and Properties · Microstructure and mechanical properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
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