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Meeting Materials Science & Technology 2019
Symposium Powder Metallurgy of Light, Reactive and Other Non-ferrous Metals
Presentation Title Strong and Ductile Novel Aluminium Metal Matrix Composites Reinforced with Ex-situ Carbon Nanotubes and In-situ Alumina Nanoparticles
Author(s) Biao Chen, Katsuyoshi Kondoh
On-Site Speaker (Planned) Biao Chen
Abstract Scope Existing high-strength aluminium (Al) alloys such as the 7000 series can offer both high tensile yield strength (>500 MPa for benchmark AA 7075-T6) and excellent tensile ductility (10%) but retain the intrinsically low elastic modulus of Al (~70 GPa). Al metal matrix composites (MMCs) can attain both high tensile yield strength (>500 MPa) and high elastic modulus (>90 GPa, close to that of high-strength beta-Ti alloys, e.g., 100 GPa for Ti-15333-T6) but at the expense of tensile ductility (<5%). We report the development of a novel class of Al materials that can offer tensile yield strength of 51517 MPa, elastic modulus of 95.61.7 GPA and elongation of 10.40.8%. Our design hypothesis is to reinforce the Al matrix with ex situ introduced carbon nanotubes (CNTs) for primary strengthening but at the same time we craft a high number density of in situ formed ultrafine γ-Al2O3 nanoparticles to improve dimpled fracture.
Proceedings Inclusion? Definite: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Advances in Titanium Research & Technology in Australia
Analysis of Grain Boundary α Phase in Hydrogen Sintered Powder Metallurgy Ti-6Al-4V
Deformation behavior and Microstructural Evolution of Hydrogen-Sintered Ti-6Al-4V during hot compression tests
Design and Fabrication of Strong and Ductile (tensile) Powder Metallurgy Titanium Metal Matrix Composites
Development of Magnesium and Magnesium Alloy Materials through Press and Sinter Powder Processing
Development of Water-soluble Binders for Titanium Metal Injection Moulding (Ti-MIM) to Produce High Performance Components
Fabrication of La2O3 Dispersed Mo-Si-B Alloys and Its Mechanical Properties
Gas Atomization Processing of Calcium Powder with In situ Passivation
Improved Exothermic Reactivity of Surface-mediated Fine Aluminum Powders
Low Temperature Sintering of Ti6Al4V as a Promising Route to Design Titanium based Composites
Mechanical Properties of HIP'd HSPT sintered Ti-6Al-4V
Metal Injection Molding of Titanium Alloys and its Applications in the Industry
P2-68: Creep Compaction of Nanocrystalline Copper Powder
P2-69: Modeling the Critical Dynamic Recrystallization of a PM Ti-22Al-25Nb Alloy during Hot Compression Deformation
Phase Diagram and Mechanical Properties of a CoCrFeNi1-xTix High Entropy Alloy Fabricated by Mechanical Alloying
Powder Hot Isostatic Pressing of Pure Nb: Influence of Powder Characteristics on the Mechanical Properties
Powder Processing Mo-Si-B for High Strength and Low Temperature Toughness
Powder sintering involving TiH2: An Update Overview
Preparation of Mo2C by Reduction and Carbonization of MoO2 with Ethanol
Soft Magnetic Properties of Amorphous Metal Powders Fabricated by Gas-atomization Process
Strong and Ductile Novel Aluminium Metal Matrix Composites Reinforced with Ex-situ Carbon Nanotubes and In-situ Alumina Nanoparticles
The Influence of Atomisation route and Powder Characteristics on the Microstructural and Mechanical Properties Development of HIPped IN625 Ni-Superalloy
The Research on Improve the Mechanical Property by Selective Formation of Y-Ti-O Complex Oxide in Ni-based ODS Alloy
Thermodynamic Model for Predicting the Embodied Energy of Titanium Alloys Produced by Powder Metallurgy
Ultrasonic Consolidation of Nanocrystalline Powders

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