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Mechanical Properties of Az91 Magnesium Alloys [PDF]
Commercial magnesium alloys AZ91 were reinforced with Al2O3 short fibres. The composites were prepared by different fabrication routs (powder metallurgy technique, squeeze casting and casting followed by extrusion).
Pavel Lukac, Zuzanka Trojanova
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Comprehensive Research of FSW Joints of AZ91 Magnesium Alloy
For the friction stir welding (FSW) of AZ91 magnesium alloy, low tool rotational speeds and increased tool linear speeds (ratio 3.2) along with a larger diameter shoulder and pin are utilized. The research focused on the influence of welding forces and the characterization of the welds by light microscopy, scanning electron microscopy with an electron ...
Krzysztof Mroczka +6 more
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Exploring the concept of castability in magnesium die-casting alloys
This paper provides a summary of the recent work completed and history of the measure of manufacturability in the magnesium die-casting industry. The most popular die-casting alloys utilized in this industry are based on the Mg–Al system, including AZ91,
J.P. Weiler
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AZ91 alloy is a widely applied commercial magnesium alloy due to its good castability, balanced mechanical properties and acceptable price, and lanthanum alloying has been proven to be one of the most effective methods to further improve its mechanical ...
Di Tie +7 more
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Due to their low density, magnesium alloys are very appealing for light-weight constructions. However, the use of the most common magnesium alloy, AZ91 (Mg 9 wt.% Al, 1 wt.% Zn), is limited to temperatures below 150 °C due to creep failure.
Dorothea Matschkal-Amberger +5 more
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Diffusion Bonding and Post-Weld Heat Treatment of Extruded AZ91 Magnesium Alloys
The grain size of as-extruded AZ91 magnesium alloys was refined to 12.31 μm from 21.41 μm by recrystallization annealing. The vacuum diffusion welding of as-annealed AZ91 magnesium alloys was researched. The results showed that the maximum shear strength
Fei LIN +4 more
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Surface Modification of AZ91 Magnesium Alloy
Mg is the lightest structural metal with the highest specific strength. It is therefore considered as a solution for vehicular mass reduction so as to reduce the fuel consumption and greenhouse gas emission. Unfortunately, Mg and its alloys are highly susceptible to corrosion, particularly in salt-spray conditions.
Luan, Ben +4 more
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Experimental investigation on uniaxial cyclic plasticity of cast AZ91 magnesium alloy
The uniaxial cyclic plasticity of cast AZ91 magnesium (Mg) alloy was investigated by conducting a series of cyclic straining and stressing tests at room temperature, and a unique cyclic plasticity (especially for ratchetting) and its physical nature were
Yu Lei, Ziyi Wang, Guozheng Kang
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Microstructure and Interface Characterization of CP-Mg and AZ91 Composite Alloys
Commercial pure magnesium and magnesium-9 aluminum-1 zinc (CP-Mg and AZ91) and their composites were prepared by using flux cover. Magnesium composite alloys containing Al2O3 or SiC particulates of different volume fractions (7-15% Vf) were successfully
M.T. Abou El-Khair +3 more
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Effect of Gadolinium on the Microstructure of Magnesium Alloy AZ91
The paper presents the results of research related to the possibility of inoculation of the AZ91 magnesium alloy casted into ceramic moulds by gadolinium. Effects of gadolinium content (0.1–0.6 wt%) on microstructure of the AZ91 alloy under as-cast state were investigated.
C. Rapiejko +3 more
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