Superplasticity of Inconel 718 Alloy by Strain-Reduced Superplasticity Deformation Process

Abstract:

The high temperature tensile experiments were carried out to investigate the superplasticity of Inconel 718 alloy by using the strain-reduced superplasticity deformation process based maximum m value method. The results indicate the fine and homogeneous grain structure of Inconel 718 alloy is obtained by hot forging, δ phase precipitation and recrystallization heat treatment process. The Inconel 718 alloy exhibits good superplasticity at a wide range of temperature from 950°C to 1020°C, and the best elongation of 566% appears at 950°C. It shows the excellent superplasticity of Inconel 718 alloy can be obtained with the strain-reduced superplasticity deformation process based maximum m value method.

• Periodical: Applied Mechanics and Materials (Volumes 446-447)
• Pages: 344-347
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.446-447.344
• Online since: November 2013
• Authors: Hong Bo Dong, Yong Wang, Li Wang
• Keywords: Deformation Process, Heat Treatment, Inconel 718 Alloy, Superplasticity

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