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Materials 2019, 12(2), 223; https://doi.org/10.3390/ma12020223

Deformation Behavior and Microstructural Evolution during Hot Stamping of TA15 Sheets: Experimentation and Modelling

1
Metal Forming Technology Department, AVIC Manufacturing Technology Institute, Beijing 100024, China
2
Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK
3
Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland
*
Author to whom correspondence should be addressed.
Received: 10 December 2018 / Revised: 3 January 2019 / Accepted: 7 January 2019 / Published: 10 January 2019
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Abstract

Near- α titanium alloys have extensive applications in high temperature structural components of aircrafts. To manufacture complex-shaped titanium alloy panel parts with desired microstructure and good properties, an innovative low-cost hot stamping process for titanium alloy was studied in this paper. Firstly, a series of hot tensile tests and Scanning Electron Microscope (SEM) observations were performed to investigate hot deformation characteristics and identify typical microstructural evolutions. The optimal forming temperature range is determined to be from 750 °C to 900 °C for hot stamping of TA15. In addition, a unified mechanisms-based material model for TA15 titanium alloy based on the softening mechanisms of recrystallization and damage was established, which enables to precisely predict stress-strain behaviors and potentially to be implemented into Finite Element (FE) simulations for designing the reasonable processing window of structural parts for the aerospace industry. View Full-Text
Keywords: TA15; hot stamping; phase evolution; deformation; modelling TA15; hot stamping; phase evolution; deformation; modelling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Li, Z.; Qu, H.; Chen, F.; Wang, Y.; Tan, Z.; Kopec, M.; Wang, K.; Zheng, K. Deformation Behavior and Microstructural Evolution during Hot Stamping of TA15 Sheets: Experimentation and Modelling. Materials 2019, 12, 223.

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