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Meeting 2016 TMS Annual Meeting & Exhibition
Symposium Material Behavior Characterization via Multi-Directional Deformation of Sheet Metal
Presentation Title The Influence of Deformation Mechanisms on Forming of Commercially Pure Titanium Sheets
Author(s) Feng Li
On-Site Speaker (Planned) Feng Li
Abstract Scope Despite its hcp crystal structure and limited number of easy slip systems, CP-Ti is very ductile in uniaxial and shows good formability at room temperature, unlike Mg alloys. To investigate the origins of this behaviour, uniaxial tensile and biaxial stretching tests were performed at different temperatures. CP-Ti sheets could be stretched to over 30% at room temperature and over 50% at 300C. During biaxial stretching CP Ti displayed good stretchability at room temperature but this decreased markedly as the temperature is increased. Electron backscatter diffraction (EBSD) was used to study the microstructure evolution and infer the activity of the different deformation mechanisms in all regimes. Unexpected twinning modes were found in samples deformed biaxially and at elevated temperatures. The implication of these observations to the formability of Ti alloys is discussed.
Proceedings Inclusion? Planned: A print-only volume

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Novel In-situ Planar Biaxial Experiment
Advanced Cruciform Testing at the NIST Center for Automotive Lightweighting
An Experimental and Microstructural Investigation of Biaxial Bauschinger Effects in Sheet Metals
An Experimentally Validated, Microstructure Based Model for Forming of Low-symmetry Alpha-uranium
Biaxial Loading of Anisotropic Al-6022-T4 Sheets Using Cruciform Specimens
Determination of Bending Limit Curves for Aluminium Alloy AA6014-T4: An Experimental Approach
Dilational Response of Voided Polycrystals
Effect of Complex Strain Paths on Microstructure Evolution Studied by In-situ Neutron Diffraction
Evalution of Formability in Aluminum Alloys across Strain Rates Using Digital Image Correlation Technique
Hardening Behavior of 316L SS Subject to Biaxial Strain Path Change: Multiscale Modeling for Guiding Experiments
Inflation of Stainless Steel 304L Microtubes under Axial Tension and Internal Pressure to Assess the Plastic Anisotropy
Modeling Anisotropic Hardening and Nonlinear Elasticity under Loading Path Change
Multi-scale Analysis of Springback in Microforming of Thin Nickel Sheets
On the Non-proportional Deformation of Sheet Steel Using In-situ Diffraction and Modelling Methods
Onset of Plasticity via Relaxation Analysis (OPRA)
Optimization of Biaxial Tensile Test Specimen Design
Predicting Cyclic Deformation of AA6022-T4 and DP590 Using Polycrystal Plasticity
Sensitivity Analysis of the Bauschinger Behavior on Bending Springback for Prestrained Sheets
The Influence of Deformation Mechanisms on Forming of Commercially Pure Titanium Sheets

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