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Meeting 2017 TMS Annual Meeting & Exhibition
Symposium Aluminum Alloys, Processing and Characterization
Presentation Title Microstructural Transition and Elevated Temperature Tensile Properties of Modified Al-Si-Cu-Mg Alloys
Author(s) Mehdi Rahimian, Shouxun Ji, Paul Blake, Douglas Watson, Zhongyun Fan
On-Site Speaker (Planned) Mehdi Rahimian
Abstract Scope In order to improve the mechanical properties of aluminium alloys used in automotive powertrain at elevated temperatures, the chemical composition of Al-Si-Cu-Mg alloys is modified by addition of transition elements. In comparison with the commonly used EN-AC-42000 alloy, the new aluminium alloy can significantly improve tensile properties at elevated temperatures. Microstructural investigation revealed that tuning of chemical composition can refine the strengthening phases and increase their volume fractions in the aluminium alloy. SEM observation demonstrated the existence of well distributed phases in the microstructure of the Developed alloy. As a result of microstructural modification, yield strength of Developed alloy is enhanced versus Base alloy (EN-AC-42000). The multiple strengthening mechanisms are responsible for the property improvement.
Proceedings Inclusion? Planned: Light Metals


A Model for α-Al(Mn,Fe)Si Crystals
Algorithm for Finding the Correlation between the Properties of Wrought Aluminum Alloys, the Chemical Composition and the Processing Parameters
Aluminium, Current and Future Development
Aluminum Alloys with Tailored TiB2 Particles for Composite Applications
Analysis of an Aluminium Alloy Containing Trace Elements
Casting Characteristics of High Cerium Content Aluminum Alloys
Characterization of Large Strain Extrusion Machining (LSEM) of AA7050
Cyclic Stress-strain Behavior and Low Cycle Fatigue Life of AA6061 Aluminum Alloy
Design of New 6xxx Series Al Alloy Using the CALPHAD Thermodynamic Database
Determination of Aluminum Oxide Thickness on the Annealed Surface of 8000 Series Aluminum Foil by Fourier Transform Infrared Spectroscopy
Determining a Stable Texture Condition Under Complex Strain Path Deformations in Face Centered Cubic Metals
Development of Low Expansion and High Strength Aluminium Hybrid Composite
Effect of Heat-treatment on Microstructure and Mechanical Properties of Sonicated Multicomponent AlMgSiCuZn Alloy
Effect of Interrupted Quenching on Al-Zn-Mg-Cu Alloys
Effects of Alloying Elements on Anneal-hardening Behavior of Aluminum Alloy Foils
I-10: Modification of Intermetallic Compounds in Aluminum Alloys by Using Ultrasonic Vibrations
I-12: Fatigue and Tensile Properties of Hypoeutectic Al-Si-Mg Alloys with Excess Mg Contents
I-13: Microstructure and Mechanical Properties of Al Alloys with Mn and AlTiB Addition
I-14: Mechanical Properties of Near Surface Microstructures (NSM) of Hot Rolled and Cold Rolled 5xxx Aluminum Alloys
I-15: Friction Stir Welding of Wrought and Cast Aluminum Alloys: Heat Transfer Modeling and Process Optimization
I-16: Friction Welding Process Between 6351-T6 Aluminum Alloy And 1020 Steel
I-17: Quantifying Beta Phase Precipitation Rate in Marine Grade 5xxx Alloys
I-18: Effect of Different Temperature Sintered SiC Particles on Microstructure and Mechanical Properties of SiC Reinforced Aluminum Matrix Composites
I-1: Investigation of Structure and Properties of New Aluminum Alloys with Scandium
I-3: Effect of Ni Addition on Microstructure and Tensile Properties of Squeeze Cast Aluminum Alloy A380
I-4: Creep Behavior of Cast Aluminum-Copper Alloys at 300 C
I-5: Warm Pressing of Al Powders: An Alternative Consolidation Approach
I-6: Influence of Reinforcement Particle Size and Spatial Distribution on Microstructure and Mechanical Behavior of Precipitation Strengthened Al Matrix Composites
I-7: Hot Deformation Characteristics of Modified AA5052
I-8: Study on the Anodic Oxide Film Formation on Die Casting Aluminum Alloy
I-9: Mechanical Properties of Miniature Samples of Additive Manufactured Aluminum: An Experimental and Computational Study
In-situ Observation of Fragmentation of Primary Crystals by Ultrasonic Cavitation in Water
Increasing Strength and Corrosion Resistance of AlMgSi Alloys by Tailor-made Thermomechanical Processing
Influence of Trace Element Additions on Fe Bearing Intermetallic Solidification of a 6063 Al Alloy
Integrated Casting-extrusion of an AA6082 Aluminum Alloy
Intergranular Corrosion Investigation on EN-AW 6082 Redraw Rod
Laser Marking and 3D Imaging of Aluminum Products
Microstructural Optimization of a High Mechanical Properties (HMP) Aluminum Alloy by Using CobaPress™ Process
Microstructural Transition and Elevated Temperature Tensile Properties of Modified Al-Si-Cu-Mg Alloys
New Yield Criterion for Description of Plastic Deformation of Face-Centered Cubic Single Crystals
On Porosity Formation in Al-Si-Cu Cast Alloys
Precipitation Modeling and Validation of Al-5%Cu-0.4%Mn Alloy Using Quench Factor Analysis
Production and Certification of Arconic Certified Reference Materials
Production of 3004 Aluminum Alloy Sheet for Structural Applications from Twin Roll Casting
Quantifying As-cast and Homogenized AA7050 Mechanical Properties through Compression Testing
Rare-earth Modified Aluminum Alloys for High-temperature Applications
Secondary Aluminum Alloys Processed by Semisolid Process for Automotive Application
Study of an Al-Ca Alloy with Low Young's Modulus
The Enhancement of Mechanical Properties of A356 Alloy Solidified at Lower Cooling Rate via Effectively Grain Refinement
The Influence of Process Parameters and Thermomechanical History on Streaking Defects in AA6060 Extrusions
The Optimization of the Homogenization Treatment of AA7075
Using Guard Bands to Accommodate Uncertainty in the Spark AES Analysis of Aluminum or Aluminum Alloys When Determining Compliance with Specified Composition Limits
Young’s Modulus of Al-Si-Mg-Cu Based Alloys under Different Heat Treatment Processes

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