Physical fields evolution and microstructures for compound extrusion of AZ31 magnesium alloy

Hu, Hong; Fan, J.-Z.; Zhai, Z. Y.; Wang, H.; Li, Y. Y.; Gong, Xue

doi:10.3103/s1067821214030067

Cited by 14 publications

(5 citation statements)

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“…Their light‐weight and high strength/weight ratio make magnesium alloys attractive candidates for automotive, aeronautical and power transmission industrial application . Other attractive properties include desirable machinability, damping capacity, electroconductivity, castability, and recyclability .…”

Section: Introductionmentioning

confidence: 99%

Effects of copper on the microstructure and properties of Mg‐17Al‐3Zn alloys

Chen

Xiao

et al. 2015

Materials & Corrosion

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In order to find good candidate materials for degradable fracturing ball applications, the microstructure, mechanical behavior and corrosion properties of as-cast Mg-17Al-3Zn-xCu alloys were investigated using optical microscope, scanning electronic microscope equipped with energy dispersive spectroscope, compression tests, electrochemical measurements, and immersion tests. The results show that Cu addition affects not only the amount but also the morphology and distribution of T-phases. The distribution of Al also has a large dependence on Cu concentration. These modifications of the microstructures accordingly affect the mechanical and corrosion properties of the investigated alloys. Mg-17Al-3Zn-5Cu alloy can be used as degradable fracturing ball.

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Section: Introductionmentioning

confidence: 99%

Effects of copper on the microstructure and properties of Mg‐17Al‐3Zn alloys

Chen

Xiao

et al. 2015

Materials & Corrosion

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“…10-12 are examined, it is seen that the Mg 17 Al 12 precipitates are distributed to the whole surface homogeneously in the sample produced at 500°C, whereas in the sample produced at 600°C Mg 17 Al 12 is located at the grain boundaries. Hence, as the hardness test measurements of the samples are made homogeneously from all surfaces decrease due to the increased sintering temperature [18,20,27].…”

Section: Sinterability Of Produced Powders and Parts Productionmentioning

confidence: 99%

The Production of AZ31 Alloys by Gas Atomization Method and Its Characteristics

Akra

Akkaş

Boz

et al. 2020

Russ. J. Non-ferrous Metals

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The aim of this study is to investigate the AZ31 alloy powder production and characterization processes experimentally using the gas atomization method. For this purpose, firstly, the design and production of gas atomization units were done at Karabük University Faculty of Technology Department of Manufacturing Engineering. In this gas atomization unit, the manufacturability of AZ31 powder from magnesium alloys was investigated by the gas atomization method which is one of the production methods by powder metallurgy. The parameters and the literature used in the production of materials similar to the AZ31 alloy are taken into account as producibility parameters. In the gas atomization method, parameters such as nozzle diameter, gas pressure, and temperature must be controlled in order to produce the desired properties in metal powder production. The diameter of the nozzle is crucial because it affects the gas pressure and temperature, the size of the powder, and the shape of the powders. Experimental studies were carried out using 3 different temperatures (790, 820, and 850°C), 4 different nozzle diameters (2, 3, 4, and 5 mm) and 4 different gas pressures (5, 15, 25, and 35 bar). In the molten metal atomization process and in the process of forming a protective gas atmosphere, argon gas was preferred. Scanning electron microscopy (SEM) was used to determine the shape of the AZ31 powders produced, XRD, XRF, and SEM-EDX analyses were used to determine the phases in the internals of the produced powders and percentages of these phases. Laser measurement devices were used for powder size analysis and hardness tests were performed to determine the mechanical properties of the produced powders. The powders produced were pressed into masses at 4 different pressing pressures (300, 400, 500, and 600 MPa). The best sinterability values of the bulked powders and sintering process were performed at 3 different temperatures (500, 550, and 600°C). Density measurements were made after pressing and sintering the powders. As a result of the experimental studies, it was found that the powder size decreased with the increase of the gas pressure but the nozzle diameter, and the powder shape changed to the dripping and the spherical in the ligament and complex form. It has been observed that the temperature has no significant effect on the powder size and shape.

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“…Traditional alloys normally consist of one principle element as the predominant composition and small amounts of other additive alloying elements, such as aluminum alloys [1][2][3][4], magnesium alloys [5][6][7], titanium alloys [8,9], Ni-super-alloys [10,11] and steel [12][13][14]. Alloys utilized in traditional industrial applications are typically multiphase-structured due to the requirement of mechanical or other performance requirements (e.g., high strength, oxidation resistance), which usually cannot be met by single-phase materials (e.g., pure Nickel).…”

Section: Introductionmentioning

confidence: 99%