Twin Roll Casting and Strip Rolling of Several Magnesium Alloys

Neh, Kristina; Ullmann, Madlen; Oswald, Matthias; Berge, Franz; Kawalla, Rudolf

doi:10.1016/j.matpr.2015.05.013

Cited by 38 publications

(34 citation statements)

References 11 publications

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“…Up to now, Al-Mg-Si aluminum alloy has been applied comprehensively in aerospace, automobile manufacturing, electronic home appliances, and other fields [8,9]. The twin-roll casting (TRC) process is that molten metal is poured, solidified, and plastic deformed in a short time through a pair of rotating casting rolls as the crystallizer, and then directly turns into a thin metal strip [10]. The twin-roll casting process combines two processes of sub-rapid solidification and hot-working, greatly shortening production process, and the corresponding products with fine microstructure could possess greater strength and hardness [11,12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Cooling Rate on Microstructure and Properties of Twin-Roll Casting 6061 Aluminum Alloy Sheet

Wang

et al. 2020

Metals

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In this study, a twin-roll casting sheet of 6061 aluminum alloy was cooled using furnace, asbestos, air, wind and water. The effect of cooling rate on the microstructure and properties of twin-roll casting 6061 aluminum alloy sheet were studied. Optical microscope, scanning electron microscope, X-ray diffraction, microhardness tester and universal tensile machine were used to observe the microstructure and properties of twin-roll casting sheet of 6061 aluminum alloy. The results show that the higher the cooling rate, the smaller the grain size of the alloy and the smaller the number of precipitated phases in the matrix. Uniform grain size of the alloy could be obtained at a stable cooling rate. The hardness, tensile strength and elongation of the twin-roll casting sheet increased with cooling rate. Under wind cooling condition, the twin-roll casting sheet demonstrated excellent comprehensive performance, i.e., 88 MPa of yield strength, 178 MPa of tensile strength and 15% of elongation, respectively. A quantitative Hall–Petch relation was established to predict the yield strength of 6061 twin-roll casting sheets with different grain sizes and cooling rate.

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Section: Introductionmentioning

confidence: 99%

Effect of Cooling Rate on Microstructure and Properties of Twin-Roll Casting 6061 Aluminum Alloy Sheet

Wang

et al. 2020

Metals

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“…The sheets were produced using the twin-roll casting process. The principle of the TRC process was published in [2][3][4]. After twin-roll casting process, the homogenization process was undertaken to obtain magnesium sheets with recrystallized microstructure and free of segregations.…”

Section: Methodsmentioning

confidence: 99%

The Effect of Sheet Thickness, Loading Rate and Punch Diameter on the Deformation Behaviour of AZ31 during 3-Point Bending

Berge

Winderlich

Krbetschek

et al. 2016

MSF

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In this study, the influence of sheet thickness, loading rate, and punch diameter on the bending behaviour of twin-roll cast, rolled and heat-treated AZ31 magnesium alloy was investigated. Therefore, the 3-point bending test was performed at room temperature using an electromechanical testing machine (v = 0.1−10 mm/s) with different punch diameters (D = 2 mm, 8 mm, 16 mm). The initial material has a recrystallized microstructure with grain sizes of 6−9 µm. It is shown by the mechanical investigations that the bending force increases with the sheet thickness. In contrast to this, the bending angle is independent of the sheet thickness. In addition, the punch diameter and the loading rate do not influence the maximum force and the bending angle significantly.

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“…These alloys characterize in a significantly lower mass than that of light aluminium alloys, but they also have much lower mechanical properties. In order to improve their mechanical properties, magnesium alloys are enriched with different alloy additions [2][3][4][5][6][7][8]12]. In the recent years, research has been made which confirms that a small amount of chromium and vanadium improves the properties of alloy AM60 [9].…”

Section: Introductionmentioning

confidence: 95%

Effect of intensive cooling of alloy AM60 with chromium and vanadium additions on cast microstructure and mechanical properties

Rapiejko

Pisarek

Pacyniak

2017

Archives of Metallurgy and Materials

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The work presents the results of the investigations of the effect of intensive cooling of alloy AM60 with additions of chromium and vanadium on the microstructure and mechanical properties of the obtained casts. The experimental casts were made in ceramic moulds preliminarily heated to 180°C, into which alloy AM60 with the additions was poured. Within the implementation of the research, a comparison was made of the microstructure and mechanical properties of the casts obtained in ceramic moulds cooled at ambient temperature and the ones intensively cooled in a cooling liquid. The kinetics and dynamics the thermal effects recorded by the TDA method were compared. Metallographic tests were performed with the use of an optical microscope and the strength properties of the obtained casts were examined: UTS(Rm), elongation (A%), and HB hardness.

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Twin Roll Casting and Strip Rolling of Several Magnesium Alloys

Cited by 38 publications

References 11 publications

Effect of Cooling Rate on Microstructure and Properties of Twin-Roll Casting 6061 Aluminum Alloy Sheet

Effect of Cooling Rate on Microstructure and Properties of Twin-Roll Casting 6061 Aluminum Alloy Sheet

The Effect of Sheet Thickness, Loading Rate and Punch Diameter on the Deformation Behaviour of AZ31 during 3-Point Bending

Effect of intensive cooling of alloy AM60 with chromium and vanadium additions on cast microstructure and mechanical properties

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