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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Powder Metallurgy of Light, Reactive and Other Non-ferrous Metals
Presentation Title Influence of Hot Rolling on Mechanical Behavior and Strengthening Mechanism in Boron Carbide Reinforced Aluminum Matrix Composites
Author(s) Hao Guo, JianNeng Zhang, Yang Zhang, Ye Cui, Dan Chen, Yu Zhao, SongSong Xu, NaiMeng Liu, ZhongWu Zhang
On-Site Speaker (Planned) Hao Guo
Abstract Scope Boron carbide reinforced aluminum matrix composites are widely used as neutron absorption materials. Here we report that mechanical alloying has been successfully employed to synthesize metal matrix composite powders with a nanograin Al as the matrix and B4C as the reinforcement. The effects of B4C content on the size distribution, morphology of the milled powders as well as the grain size of the matrix alloy are investigated. The XRD results confirmed that the grain size of aluminum reached to 36nm and lattice distortion increased much after 60h milling of powder mixture. The content of boron carbide affects the mechanical properties significantly. The strength can be increased from 263MPa to 378MPa with the increase in boron carbide from 15wt% to 30wt%. Meanwhile the elongation decreased slightly. Some physical phenomena, such as phase transformation during mechanical alloying and their effects on the mechanical properties of hot pressured specimens are also discussed.
Proceedings Inclusion? Planned: Supplemental Proceedings volume

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Development of Gas Atomization for Generating Reactive Metal Powders for Additive Manufacturing and Powder Processing
Effect of Minor Titanium Addition on Copper/Diamond Composites Prepared by Hot Forging
Effects of Geometry Anisotropy on Fluid-flow and Mechanical Properties of Titanium Foams
Fabrication of Functional Materials Powder by Powder Metallurgical Process, and Investigation of their Bulk Properties
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Fabrication of Powder Metallurgy Ti-6Al-4V Connecting Rod by Powder Forging Process
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Hot Deformation Behaviors of Powder Metallurgy Ti-6Al-4V Alloy with Different Microstructures
Implementation of a Multi-physics Model for Simulating Microstructural Evolution during Sintering
Influence of Hot Rolling on Mechanical Behavior and Strengthening Mechanism in Boron Carbide Reinforced Aluminum Matrix Composites
Leaching Characteristics of Non Ferrous Metals Recovery from Korean Municipal Solid Waste Incineration Bottom Ash Samples
Mechanical Characterization of Cold Sprayed Aluminum Alloy Powders Using In-situ Micropillar Compression and Tension
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Mesoscale Modeling of Single Particle Impact Induced Microstructural Evolution during Cold Spray of Aluminum Powders
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Novel Continuous Extrusion of Titanium Powders for Wire Applications
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On the Synthesis of Lithium Boron Nitride (Li3BN2): Challenges and Opportunities
Optimization of Manufacturing Process for the High Magnetic Properties of Nd-Fe-B Bonded Magnets Using High-energy Compaction Method
Powder Metallurgy of Titanium – Past, Present, and Future
Processing and Characterization of Porous High Entropy Alloy Structures via Freeze-casting
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Solid-state Sintering of Al Alloy Powder and AlN Synthesis in Sintering
Synthesis and Characterization of Dual Matrix In-situ Al-based Nanocomposites
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The Fabrication of Core-shell Special Powders and their Potential Applications
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Utilizing Hydrogen for Improved Properties of Titanium Alloys Produced via Powder Metallurgy

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