ANSYS-Based Simulation and Optimization on Temperature Field of Amorphous Ingot Made by Water Quenching

Zhao, Wei; Sun, Zhiqian; Tang, Zijian; Liaw, Peter K.; Li, J.; Liu, R. P.; Gong, L.

doi:10.1007/s11661-013-1838-0

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…Melting and solidification were repeated several times to improve sample homogeneity. Finally, the re-molten ingot was cast into 6-mmdiameter rods with a high cooling rate [54]. As-cast samples are referred to as AlCoCrFeNi-AC.…”

Section: Methodsmentioning

confidence: 99%

Tensile ductility of an AlCoCrFeNi multi-phase high-entropy alloy through hot isostatic pressing (HIP) and homogenization

Tang

Senkov

Parish

et al. 2015

Materials Science and Engineering: A

238

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The microstructure and phase composition of an AlCoCrFeNi high-entropy alloy (HEA) were studied in as-cast (AlCoCrFeNi-AC, AC represents as-cast) and homogenized (AlCoCrFeNi-HP, HP signifies hot isostatic pressed and homogenized) conditions. The AlCoCrFeNi-AC ally has a dendritrical structure in the consisting primarily of a nano-lamellar mixture of A2 [disorder body-centered-cubic (BCC)] and B2 (ordered BCC) phases, formed by an eutectic reaction. The homogenization heat treatment, consisting of hot isostatic pressed for 1 hour at 1,100 °C, 207 MPa and annealing at 1,150 °C for 50 hours, resulted in an increase in the volume fraction of the A1 phase and formation of a Sigma () phase. Tensile properties in ascast and homogenized conditions are reported at 700 °C. The ultimate tensile strength was virtually unaffected by heat treatment, and was 396 ± 4 MPa at 700 °C. However, 2 homogenization produced a noticeable increase in ductility. The AlCoCrFeNi-AC alloy showed a tensile elongation of only 1.0 %, while after the heat-treatment, the elongation of AlCoCrFeNi-HP was 11.7 %. Thermodynamic modeling of non-equilibrium and equilibrium phase diagrams for the AlCoCrFeNi HEA gave good agreement with the experimental observations of the phase contents in the AlCoCrFeNi-AC and AlCoCrFeNi-HP. The reasons for the improvement of ductility after the heat treatment and the crack initiation subjected to tensile loading were discussed.

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Section: Methodsmentioning

confidence: 99%

Tensile ductility of an AlCoCrFeNi multi-phase high-entropy alloy through hot isostatic pressing (HIP) and homogenization

Tang

Senkov

Parish

et al. 2015

Materials Science and Engineering: A

238

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show abstract

“…All safety and stress analyses of the geometries for this design were carried out using the ANSYS program. Apart from the analysis of design geometries using finite element models, many different metallurgical properties have been examined using ANSYS [25,26]. No research has been found in the literature studies regarding the change of microstructure and mechanical properties resulting from the cooling rate of auto parts.…”

Section: Introductionmentioning

confidence: 99%

“…Extrusion method is the most ideal method for this geometry according to injection. It is also a plastic forming method, and its mechanical properties are therefore better [25,26]. A product has been reported to an industrial organization as having insufficient mechanical properties at high speeds.…”

Section: Introductionmentioning

confidence: 99%

Finite Element‐Based Simulation of Cooling Rate on the Material Properties of an Automobile Silent Block

Öztürk

Kara

2020

Advances in Materials Science and Engineering

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The aluminum silent block is the part that connects the front suspension mounting and the road wheels. These products are used in high-speed cars and are subject to high engineering stresses. Over time, fractures occur in the connection part of these products due to insufficient strength. These problems are related to production metallurgy, which led to the concept of this study. During mass production, these parts are manufactured using the aluminum extrusion method. In this study, a rapid cooling process using water was applied, with the aim of improving the mechanical properties of the connecting part exposed to high dynamic loads. Samples were taken from the regions of these products which differed in thickness and width, and microhardness and tensile tests were performed for each region. The effects of both the extrusion cooling rate and the regional flash cooling on the material properties were then characterized. As a result of the isothermal transformation, the grain size in the microstructure of the material had shrunk. According to the findings, in this type of production, an average increase in strength of 25% was observed in the parts of the material subjected to maximum stress. The stress and safety coefficient values were found using finite element analysis, and curves were then drawn showing the differences in the safety coefficient values from the different points. As a result of cooperation between university and industry, the material and mechanical properties of an automobile part were improved in this study. This research has shown that, in terms of the accuracy of the results, it is very important to consider the variations in different regions of the product when defining the mechanical properties of any material produced by applying casting, heat treatment, and plastic forming methods.

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Numerical Simulations of the Ohno Continuous Casting Process for Mg - based Amorphous Alloys

Zhang

Liu

Feng

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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ANSYS-Based Simulation and Optimization on Temperature Field of Amorphous Ingot Made by Water Quenching

Cited by 3 publications

References 12 publications

Tensile ductility of an AlCoCrFeNi multi-phase high-entropy alloy through hot isostatic pressing (HIP) and homogenization

Tensile ductility of an AlCoCrFeNi multi-phase high-entropy alloy through hot isostatic pressing (HIP) and homogenization

Finite Element‐Based Simulation of Cooling Rate on the Material Properties of an Automobile Silent Block

Numerical Simulations of the Ohno Continuous Casting Process for Mg - based Amorphous Alloys

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