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Meeting Materials Science & Technology 2017
Symposium Light Metals Alliance: Light Metals Technology 2017
Presentation Title Effect of Heat Treatment and Artificial Ageing on Al-5Mg-2Zn
Author(s) Levy Chauke
On-Site Speaker (Planned) Levy Chauke
Abstract Scope Traditionally aluminium casting alloy 513 is not heat treated after permanent mould casting. Al-Mg alloys are generally not heat treatable but the higher Zn content in this alloy could render it heat treatable. It could be expected that in its as-cast state (F temper condition) there should be non-equilibrium intermetallics remaining at grain boundaries after casting which could be detrimental to corrosion properties of the alloy. This study investigated the effect of heat treatment and artificial ageing of Al-5Mg-2Zn. The study showed intermetallic phases at the grain boundaries and a melting peak at about 476 C for the F condition. Solution heat treatment at 440C for 4 hours dissolved the intermetallic phase thus increasing the melting point of the alloy. The results further showed an appreciable increase of mechanical properties after T6 heat treatment over the F-condition.
Proceedings Inclusion? Definite: At-meeting proceedings


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Effect of Heat Treatment and Artificial Ageing on Al-5Mg-2Zn
Effect of Heat Treatment Conditions on Microstructure, Mechanical Properties and Residual Stress in a Die-cast Al-Si Alloy
Effect of Isothermal Holding at Elevated Temperature on Metallurgically Bonded Bimetallic Castings
Effect of Titanium Levels on the Castability and Abnormal Grain Growth after Heat Treatment of Al-Zn-Mg-Cu Alloys
Effects of Heat-Treatment on the Microstructure of TiAl-Nb Produced with Laser Metal Deposition Technique
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J-22: Microstructure and Texture Evolution of Micro-alloyed Magnesium-Zinc-Neodymium Alloys
J-23: Microstructure, Mechanical Properties and Deformation Behavior of Mg-Gd-Y-Zn-Zr Alloy
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J-25: Optimisation of Injection Moulding Process Parameters: Orthogonal Array Approach
J-26: Precipitation Strengthening Behavior of Al-Cu-Mn Alloys With the Effect of Casting Segregation
J-27: Sensitization Effects on Tensile Behavior in 5XXX Series Aluminum Alloys: Environmentally Enhanced Cracking
J-28: Strain State Effects of Sensitization-induced β Precipitates in AA5456
J-29: Study of Constant and Variable Blank Holding Force Techniques in Hydroforming of Cryorolled Al-Mg Alloy Sheets by FE Simulation
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J-31: Ultrasonic Vibration Assisted Laser Surface Melting Of Al 2024 Alloys and Its Influence on Microstructural Evolution
J-32: Vertical Section Phase Diagram of Mg (1-X) Sr0.5 ZnX Alloy Using Solidification Cooling Curves
J-33: Auto-Al Recycling: A Grave-to-gate Analysis
J-34: Crack Propagation from a Notched Hole under Uni-axial Fatigue Loading of AA7075-T6 Sheet
J-35: Effect of Casting Porosity on Compressive Mechanical Property of as-quenched Al-Cu-Mn Alloy
J-37: Effect of Strain Rate on Mechanical Behaviour of Commercial Die-cast Magnesium Alloys
J-38: Formability of Tailor Welded Blanks Made by Friction Stir Welding: Effect of Heat Input and Flow Profile
J-39: Fracture and Fatigue Crack Growth Behavior of As-cast vs. Forged Ti-43Al-4Nb-1Mo
J-40: Hot Deformation/Forging and Mechanical Behavior of 3rd Generation Al-Li Alloy
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J-42: Low Temperature Thermal Conductivity of Pure Mg and Binary Magnesium Alloys
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