Dependence of Microstructure, Texture and Tensile Properties on Working Conditions in Indirect-Extruded Mg-6Sn Alloys

Cheng, Weili; Rui, Huo; Yu, Hui; You, Bo

doi:10.1016/s1875-5372(16)30011-x

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…Backward extrusion adds an additional shear stress, resulting in a significant refinement of microstructure in just one cycle. Under the same extrusion pass, the structure of indirect extrusion is more uniform, and the mechanical properties are better [ 8 ]. Mg wheels are always formed using an indirect extrusion process ( Figure 2 a).…”

Section: Magnesium Alloy Extrusion Process and Advantagesmentioning

confidence: 99%

“…Then the grains became finer, the texture became weak, and the material plasticity increased from 23.99% to 38.48% (TD direction). Cheng et al [ 8 ] evaluated the relationship between microstructure evolution and extrusion conditions of backward-extruded Mg-6Sn alloy and found that the texture strength decreased with an increasing extrusion speed and temperature. As the extrusion temperature decreased, the grain size became smaller.…”

Section: Magnesium Alloy Extrusion Process and Advantagesmentioning

confidence: 99%

“…With the development of technology, many extrusion processes have been proposed and researched. Commonly used methods include direct extrusion, indirect extrusion [ 8 ], equal channel angular pressing [ 9 ] and rotary extrusion [ 10 ]. Among these different extrusion methods, there are attractive methods owing to their relatively simple procedures, reduced material handling and large deformations.…”

Section: Introductionmentioning

confidence: 99%

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Research Progress on Microstructure Evolution and Strengthening-Toughening Mechanism of Mg Alloys by Extrusion

et al. 2023

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Magnesium and magnesium-based alloys are widely used in the transportation, aerospace and military industries because they are lightweight, have good specific strength, a high specific damping capacity, excellent electromagnetic shielding properties and controllable degradation. However, traditional as-cast magnesium alloys have many defects. Their mechanical and corrosion properties cause difficulties in meeting application requirements. Therefore, extrusion processes are often used to eliminate the structural defects of magnesium alloys, and to improve strength and toughness synergy as well as corrosion resistance. This paper comprehensively summarizes the characteristics of extrusion processes, elaborates on the evolution law of microstructure, discusses DRX nucleation, texture weakening and abnormal texture behavior, discusses the influence of extrusion parameters on alloy properties, and systematically analyzes the properties of extruded magnesium alloys. The strengthening mechanism is comprehensively summarized, the non-basal plane slip, texture weakening and randomization laws are comprehensively summarized, and the future research direction of high-performance extruded magnesium alloys is prospected.

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Section: Magnesium Alloy Extrusion Process and Advantagesmentioning

confidence: 99%

Section: Magnesium Alloy Extrusion Process and Advantagesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Research Progress on Microstructure Evolution and Strengthening-Toughening Mechanism of Mg Alloys by Extrusion

et al. 2023

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Extrusion Forming Process and Microstructure of Mg-3Al-1Zn Alloy

Fang

Sun

2019

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

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In this paper, extrusion treatment of Mg-3Al-1Zn alloy treated with casting and homogenizing was carried out, the effects of extrusion temperature and extrusion ratio on the strength and ductility of the alloy were investigated, and the action mechanism was discussed. The results show that both before extrusion or after, the tensile strength of Mg-3Al-1Zn alloy after the treatment are reduced to some extent, while the elongation increases significantly. At the same extrusion ratio, when the extrusion temperature rises from 250°C to 450°C, the tensile strength of cast alloy is higher than that of uniform state. At lower temperature and larger extrusion ratio, Mg-3Al-1Zn alloy has better plasticity. With the increase of extrusion ratio, the tensile strength and elongation of Mg-3Al-1Zn alloy show a rising trend.

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Effect of Al content on the microstructure and mechanical properties of Mg-5wt%Sn-xAl as-cast alloys

Sun

Zhang

et al. 2020

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

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Microstructure and mechanical properties of Mg-5wt.% Sn-xAl as-cast alloys were studied, for the Al content ranged from 0.5 to 3.0wt.%. It was found that Al element was mainly distributed in Mg17Al12 phase in as-cast alloys, and its increase rose the Mg17Al12 phase share. There were no ternary phases in these alloys. Only two forms of Mg2Sn and Mg17Al12 phases were detected, namely (i) Mg17Al12 phase attached to the end of Mg2Sn phase and (ii) Mg2Sn phase enclosed by Mg17Al12 phases. The grain sizes of these alloys got refined with the growing content of Al element, and 1.5wt% Al content corresponded to the grain size of 33.5um. As for the mechanical properties, the ultimate tensile and yield strengths of the alloys were improved at larger contents of Al. The Mg-5wt.%Sn-3.0wt% alloy had the highest ultimate tensile and yield strengths of 212 and 167MPa, respectively, while Mg-5wt.%Sn-1.5wt%Al alloy had the best elongation of 16.5%.

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Dependence of Microstructure, Texture and Tensile Properties on Working Conditions in Indirect-Extruded Mg-6Sn Alloys

Cited by 3 publications

References 17 publications

Research Progress on Microstructure Evolution and Strengthening-Toughening Mechanism of Mg Alloys by Extrusion

Research Progress on Microstructure Evolution and Strengthening-Toughening Mechanism of Mg Alloys by Extrusion

Extrusion Forming Process and Microstructure of Mg-3Al-1Zn Alloy

Effect of Al content on the microstructure and mechanical properties of Mg-5wt%Sn-xAl as-cast alloys

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