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Meeting MS&T21: Materials Science & Technology
Symposium Development of Light Weight Alloys and Composites
Presentation Title Development of Bulk Nanocrystalline Aluminum Materials with Enhanced Mechanical Properties
Author(s) Pradeep L Menezes, Sridhar Lanka, Raven Maccione, Bhaskar Vadlamani , Manoranjan Misra
On-Site Speaker (Planned) Raven Maccione
Abstract Scope Manufacturing bulk nanocrystalline (NC) materials with lightweight and superior mechanical properties have been of considerable interest to material scientists. In the present research, to develop NC materials, powders of Al, and Al-5wt.%Mg alloys, were cryo-milled under controlled liquid nitrogen temperatures for different durations. The cryo-milled powders were characterized using X-ray diffraction, scanning electron microscope, and transmission electron microscope. The crystallite size significantly decreased with increasing cryo-milling duration. Further, spark plasma sintering of cryo-milled Al and Al-Mg powders were carried out to manufacture bulk component. The results showed that the cryo-milled Al and Al-Mg components showed superior mechanical properties compared to non-cryo-milled Al and Al-Mg components. Furthermore, the Al-Mg components were superior to Al components. Moreover, the cryo-milling duration had a significant effect on the strength properties. It can be inferred that the Mg dopant segregated at the grain boundary of Al during cryo-milling and enhanced the strength of the material.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Data-driven Analysis for Selection of Ti-based Alloys for Aircraft Landing Gear Beams and Future Directions
Coarsening of Strengthening Phases in Al(Cu) Alloys: Correlated Atomic-Resolution Microscopy and Composition Analysis
Development of a High-temperature High Strength Aluminum Alloys by Microstructure Tuning
Development of Bulk Nanocrystalline Aluminum Materials with Enhanced Mechanical Properties
Effect of Copper Contents on Corrosion of High Performance ACMZ Cast Aluminum Alloys
Energy Efficient Solid-state Alloying and Composite Manufacturing
Existing and Emerging Applications of Machine Learning in Design, Synthesis, and Characterization of Metal Matrix Composites
Grain Boundary Relaxation in Nanocrystalline Aluminum
Impact of Laser Shock Peening on Stress Corrosion Susceptibility in Al-Mg Alloys
Inoculation of ML5 Cast Magnesium Alloy with Carbon Nano Powder
Insights into Metal-based Polymer Pyrolysis for In-situ MMC Production
Investigation of Microstructure, Interfaces and Mechanical Properties of Metal Matrix Composites
Low Cycle Fatigue Behavior of Conventional High Temperature Titanium Alloys for Aeroengine Applications
Magnesium Alloy Composite with Metal Reinforced Particles Using Friction Stir Processing To Improve Mechanical Properties
Non-Rule-of-Mixtures Thermal Diffusivity in Core-Shell-based Nanocrystalline Composite Ceramics
Precipitation of Stable Icosahedral Quasicrystalline Phase in Mg-Al-Zn Alloys
Surge for Design and Development of Low-density High Entropy Alloys and Composites
Tensile Properties of Epoxy Composites Reinforced with Continuous Mixed Natural Fibers
The Effect of Multiple Age Treatment on Mechanical Properties of 7075 Al Alloy

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