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Meeting MS&T23: Materials Science & Technology
Symposium Light Metal Technology
Presentation Title Through-thickness Heterogeneity in the Mechanical Properties of Hot Rolled AA7075-T651
Author(s) Damilola Alewi, Paul Rottmann, Haluk Karaca, Kirk Lemmen
On-Site Speaker (Planned) Damilola Alewi
Abstract Scope The evolution of the microstructure and mechanical properties of a 32 mm thick hot rolled AA7075 plate specimen in T651 temper condition was investigated with the aim of understanding the qualitative and quantitative contribution of precipitate phases. Mechanical properties measured with the aid of ex-situ micromechanical and hardness test showed a non-parabolic through-thickness heterogenous trend in the yield and tensile strength with respect to depth from the surface to the midplane of the specimen. The size and distribution of the microscale (>50 nm) and nanoscale (<20 nm) precipitate distribution was studied quantitatively in detail by a combination of large area scanning electron microscopy (SEM) containing 99 images and HFW of 416 um and small angle x-ray scattering technique (SAXS) at four different depths. The variability in the distribution of the precipitate phases was established to be the driving force for the through-thickness heterogeneity.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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Assesment of the Mechanical Properties of an AlMg7Cu2 Alloy with TiBZrMoV Alloying at Different T6 Solution Heat Treatment Conditons and Modeling of Its Behavior by Continuum Mechanics Approach
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Effect of Erbium and Europium Addition on Microstructure and Mechanical Properties of A356, A206 and A201 Alloys
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Effects of Pass Strains of Multi-directional Forging and Additive Cold Rolling of Pure Ti on the Microstructural Evolution and Mechanical Properties
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Improved Strength in Mg-Al Dissimilar Impact Welding by Surface Nanocrystallization of Mg Alloy Sheet
Inductance-based Structural Self-sensing, as Shown for Sensing Shape-changing Deformation In Aluminum
Influence of Ce, Ni and Cu on Castability and Mechanical Properties of Al Piston Alloys
Investigating Hydrogen Porosity in Aluminum Laser Welding Using a Three-dimensional Cellular Automaton Model
Investigation on the Grain Refinement of Mg-Al Alloys by Superheating Process Using Rapid Solidification Process
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Observation of Impact Deformation and Fracture on Severe Plastic Deformed Ti by Using Synchrotron Radiation
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Production of Titanium Wire from Scrap Material Using Continuous Extrusion Machine
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Selective Laser Melting of a TiB2/Al-Cu-Mg-Ni-Sc Composite
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Study on the Improvement of the Mechanical Properties Heavy Commercial Vehicle’s Wheel by the Molten-forged on the A356 Alloy
The Beneficial Effects of Ce Additions on High-Fe Secondary Al-Si Casting Alloys
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Through-thickness Heterogeneity in the Mechanical Properties of Hot Rolled AA7075-T651

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