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Meeting 2020 TMS Annual Meeting & Exhibition
Symposium Metal-Matrix Composites: Analysis, Modeling, Observations and Interpretations
Presentation Title Effects of Interface Characteristics on High Volume Fraction Al/SiCp Composites under Compressive Stress
Author(s) Taegyu Lee, Donghyun Lee, Hobyung Chae, Soo Yeol Lee, Ho Jin Ryu
On-Site Speaker (Planned) Taegyu Lee
Abstract Scope Enhanced mechanical properties of high-volume-fraction (~55vol%) SiCp/Al composites were acquired by matrix-reinforcement interface modification. The interface modification was performed to increase mechanical properties of high-volume-fraction SiCp/Al composites by forming an additional layer on SiC particles by oxidation. The surface of two types of SiC reinforcements (coarse (30 μm) and fine (10 μm)) was oxidized and a 200 nm thick SiO2 layer was formed on the SiC surface. The interface modified SiCp/Al composites were fabricated by liquid pressing and the compression test was conducted under the in-situ neutron diffraction measurement system. The additional layer was transmuted to MgAl2O4 after the fabrication and it prevented a formation of brittle Al4C3. The change of interface characteristics increased the strength and the fracture strain for the coarse and fine SiCp composites, respectively. We found that the interface modification enhances the mechanical properties and the mechanism of the properties enhancement varies with the reinforcement size.
Proceedings Inclusion? Planned:

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

4D X-ray Tomography and Correlative Microscopy of Composite Materials
A 3D Multiple-Slip Crystal Plasticity Model for Precipitate Hardening in Additively Manufactured High-Strength Steels
Design of Steel Microstructures by Manipulation of Reinforcement Precipitates using Finite Element Methods
Effect of Reinforced Materials Size on Wear Behavior of Cu/B4C Metal Matrix Composites Fabricated by Friction Stir Processing
Effects of Interface Characteristics on High Volume Fraction Al/SiCp Composites under Compressive Stress
In-situ Synthesis of Al/Al2O3 Nanocomposites via Spark Plasma Sintering of Nano-sized Al Powders
Investigation of Friction Stir Spot Welding of Aluminium Alloys using Zinc as an Interlayer
Lightweight Radiation Shielding Using Metal Matrix Composites
Mechanical Properties of Al-based Metal Matrix Composites Produced by Constrained High Pressure Torsion
Mechanical Testing of Steel and Tungsten Fibers for Use in Composites for Fusion Applications
Microstructure Analysis and Modeling of the Effective Properties of Damaged Fe-TiB2 Metal Matrix Composites
Microstructure, Interfaces and Mechanical Properties of Nano Composites Manufactured in Solid State
Processing and Microstructural Characterization of Novel Invar Syntactic Foams
Role of Matrix Microstructure on the Mechanical Behavior and Corrosion Response of Two Magnesium Metal Matrix Composites
Simultaneously Applied Electromagnetic and Mechanical Ultrasound for Particle Dispersion in Liquid Metals
Synthesis and Characterization of In-situ Formed TiB2 Particulate Reinforced Al-Si Alloy Composites
The Effect of Solution Treatment Aging on Hardness Improvement of Ti-6Al-4V/TiC Metal Matrix Composite
The Microstructure and Mechanical Properties of Magnesium-based Composites: Role of Reinforcement and Processing
Volume Fraction Analysis of Alumina Reinforced Aluminum Composites

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