The Experts below are selected from a list of 6 Experts worldwide ranked by ideXlab platform
Yemi Fasoyinu - One of the best experts on this subject based on the ideXlab platform.
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Energy Saving Melting and Revert Reduction Technology (Energy-SMARRT): Light Metals Permanent Mold Casting
2014Co-Authors: Yemi FasoyinuAbstract:Current vehicles use mostly ferrous components for structural applications. It is possible to reduce the weight of the vehicle by substituting these parts with those made from light metals such as aluminum and magnesium. Many alloys and manufacturing processes can be used to produce these light metal components and Casting is known to be most economical. One of the high integrity Casting processes is permanent mold Casting which is the focus of this research report. Many aluminum alloy Castings used in automotive applications are produced by the sand Casting process. Also, aluminum-silicon (Al-Si) alloys are the most widely used alloy systems for automotive applications. It is possible that by using high strength aluminum alloys based on an aluminum-copper (Al-Cu) system and permanent mold Casting, the performance of these components can be enhanced significantly. This will also help to further reduce the weight. However, many technological obstacles need to be overcome before using these alloys in automotive applications in an economical way. There is very limited information in the open literature on gravity and low-pressure permanent mold Casting of high strength aluminum alloys. This report summarizes the results and issues encountered during the Casting trials of high strength aluminum alloy 206.0more » (Al-Cu alloy) and moderate strength alloy 535.0 (Al-Mg alloy). Five engineering components were cast by gravity tilt-pour or low pressure permanent mold Casting processes at CanmetMATERIALS (CMAT) and two production foundries. The results of the Casting trials show that high integrity engineering components can be produced successfully from both alloys if specific processing parameters are used. It was shown that a combination of melt processing and mold temperature is necessary for the elimination of hot tears in both alloys.« less
Malcolm J. Couper - One of the best experts on this subject based on the ideXlab platform.
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An empirical analysis of trends in mechanical properties of T6 heat treated Al-Si-Mg Casting alloys
International Journal of Cast Metals Research, 2000Co-Authors: John A. Taylor, D. H. St John, J. Barresi, Malcolm J. CouperAbstract:The Al-Si-Mg family of alloys is typically used in the T6 heat treated condition for high integrity Casting applications, There are several variables that can influence the tensile properties of these alloys besides the actual ageing treatment employed. These are alloy composition, particularly Mg and Fe content, and secondary dendrite arm spacing or SDAS, Tensile data from samples covering a wide range of Mg content (0.3-0.7%), Fe content (0.05-0.20%), SDAS (20-60 mu m) and two ageing treatments (under-and peak-aged), have been collected and analysed empirically. Concise relationships have been determined for yield strength, ultimate tensile strength and elongation to fracture in terms of one or more of the experimental variables. The observed trends are explained in terms of basic metallurgical principles and the predictive use of the empirically-determined equations is qualified. A comparison of experimentally determined properties and those calculated using the derived relationships highlights some important and clear trends.
John A. Taylor - One of the best experts on this subject based on the ideXlab platform.
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An empirical analysis of trends in mechanical properties of T6 heat treated Al-Si-Mg Casting alloys
International Journal of Cast Metals Research, 2000Co-Authors: John A. Taylor, D. H. St John, J. Barresi, Malcolm J. CouperAbstract:The Al-Si-Mg family of alloys is typically used in the T6 heat treated condition for high integrity Casting applications, There are several variables that can influence the tensile properties of these alloys besides the actual ageing treatment employed. These are alloy composition, particularly Mg and Fe content, and secondary dendrite arm spacing or SDAS, Tensile data from samples covering a wide range of Mg content (0.3-0.7%), Fe content (0.05-0.20%), SDAS (20-60 mu m) and two ageing treatments (under-and peak-aged), have been collected and analysed empirically. Concise relationships have been determined for yield strength, ultimate tensile strength and elongation to fracture in terms of one or more of the experimental variables. The observed trends are explained in terms of basic metallurgical principles and the predictive use of the empirically-determined equations is qualified. A comparison of experimentally determined properties and those calculated using the derived relationships highlights some important and clear trends.
D. H. St John - One of the best experts on this subject based on the ideXlab platform.
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An empirical analysis of trends in mechanical properties of T6 heat treated Al-Si-Mg Casting alloys
International Journal of Cast Metals Research, 2000Co-Authors: John A. Taylor, D. H. St John, J. Barresi, Malcolm J. CouperAbstract:The Al-Si-Mg family of alloys is typically used in the T6 heat treated condition for high integrity Casting applications, There are several variables that can influence the tensile properties of these alloys besides the actual ageing treatment employed. These are alloy composition, particularly Mg and Fe content, and secondary dendrite arm spacing or SDAS, Tensile data from samples covering a wide range of Mg content (0.3-0.7%), Fe content (0.05-0.20%), SDAS (20-60 mu m) and two ageing treatments (under-and peak-aged), have been collected and analysed empirically. Concise relationships have been determined for yield strength, ultimate tensile strength and elongation to fracture in terms of one or more of the experimental variables. The observed trends are explained in terms of basic metallurgical principles and the predictive use of the empirically-determined equations is qualified. A comparison of experimentally determined properties and those calculated using the derived relationships highlights some important and clear trends.
J. Barresi - One of the best experts on this subject based on the ideXlab platform.
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An empirical analysis of trends in mechanical properties of T6 heat treated Al-Si-Mg Casting alloys
International Journal of Cast Metals Research, 2000Co-Authors: John A. Taylor, D. H. St John, J. Barresi, Malcolm J. CouperAbstract:The Al-Si-Mg family of alloys is typically used in the T6 heat treated condition for high integrity Casting applications, There are several variables that can influence the tensile properties of these alloys besides the actual ageing treatment employed. These are alloy composition, particularly Mg and Fe content, and secondary dendrite arm spacing or SDAS, Tensile data from samples covering a wide range of Mg content (0.3-0.7%), Fe content (0.05-0.20%), SDAS (20-60 mu m) and two ageing treatments (under-and peak-aged), have been collected and analysed empirically. Concise relationships have been determined for yield strength, ultimate tensile strength and elongation to fracture in terms of one or more of the experimental variables. The observed trends are explained in terms of basic metallurgical principles and the predictive use of the empirically-determined equations is qualified. A comparison of experimentally determined properties and those calculated using the derived relationships highlights some important and clear trends.