Review on Vertical Twin-Roll Strip Casting: A Key Technology for Quality Strips

Sahoo, S.

doi:10.1155/2016/1038950

Cited by 18 publications

(5 citation statements)

References 69 publications

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“…Induction heating induces eddy currents within conductors. Eddy currents create heating effects to melt the metal [6] while strip casting process is a near-net-shape casting technology, for the production of thin strips having thickness of about 0.1 mm to 6.0 mm. This process produces thin strips directly from the liquid metal by combining casting and rolling in a single step solidifying the liquid metal when it comes in contact with the rotating mold [7].…”

Section: Methodsmentioning

confidence: 99%

Oxidation Resistant Nickel Aluminide Coating on Niobium Alloy C103 for High Temperature Aerospace Applications

Zubair

Ejaz

Mansoor

2022

SSP

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Owing to its fairly higher melting point (2468°C) and superior thermal conductivity, Niobium alloys are rendered as candidate material for high temperature applications, where state of the art Nickel base super alloys cannot be used. Its applications possess wide range of aerospace components mainly encompassing aircraft exhaust chambers, thrust augmenters, rocket engines and other industries such as chemical and petrochemical. The only limitation with niobium alloys is their inferior oxidation resistance, which can be tackled by developing a high temperature oxidation resistant coating. In this regard, Nickel Aluminide (NiAl) having a melting point of 1638°C embraces a paramount importance amongst the coating categories. In this study, NiAl was synthesized using vacuum melting and strip casting followed by ball milling. The powder was coated on C-103 Niobium alloy specimens using air plasma technique and evaluated for high temperature stability. It was deduced that the coating was exceptionally stable up to 1234 °C in ambient conditions.

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Section: Methodsmentioning

confidence: 99%

Oxidation Resistant Nickel Aluminide Coating on Niobium Alloy C103 for High Temperature Aerospace Applications

Zubair

Ejaz

Mansoor

2022

SSP

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“…In the same manner as it has been realized in works [13][14][15][16][17][18] , the modeling has been provided by means of the FE software package ANSYS. Besides the already mentioned publications, this software has also been successfully used to simulate twin-roll casting of strips of aluminum and aluminum alloys 20 , various steels [21][22] and magnesium alloys 23 .…”

Section: Numerical Modeling Of the New Twin-roll Casting Methodsmentioning

confidence: 99%

“…Sahoo et al described and investigated the effect of casting rate and melt superheat in the twin-roll casting of an Al-33Cu alloy on conditions of the strip formation using the same software 14 . It has been shown that increasing of these parameters reduces the deformation zone length, because the time needed for solidification of the strip becomes longer.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Twin-Roll Casting of Strips With Profiled Cross-Section

et al. 2018

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The relatively high production costs of innovative materials with tailored properties such as Tailor Welded Blanks, Patchwork Blanks, Tailor Heat Treated Blanks and Tailor Rolled Blanks are responsible for a growing interest in new cost-effective production methods. One of the promising energy-saving and environmental friendly technologies for the production of tailored blanks is twin-roll casting. In the study a new alternative method for twin-roll casting of strips with profiled cross-section is proposed, which uses one or more preloaded endless steel strips with an antiadhesive coating for profiling of the formed strip on a pair of the common cylindrical shells. As a primary stage for the practical process design, numerical simulation of the process using the finite element software package ANSYS is realized. In this way, dependencies of the strip elements outlet temperature, deformation zone length and elements outlet speed on the varied strips thickness and total solidification-deformation zone length are established. Based on the simulation results, a procedure for the twin-roll casting process design is suggested.

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“…Compared to the much thinner typical sheet and extrusion profiles that are finally used in products, this requires thickness reductions in excess of 90%, which explains the high deformation and reheating energy that is used in this field. Therefore, this section places focus on promising energy-reduced downstream processing methods in that context. − …”

Section: Better Sustainability Through Improved Large-scale Processingmentioning

confidence: 99%

The Materials Science behind Sustainable Metals and Alloys

Raabe

2023

Chem. Rev.

138

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Production of metals stands for 40% of all industrial greenhouse gas emissions, 10% of the global energy consumption, 3.2 billion tonnes of minerals mined, and several billion tonnes of by-products every year. Therefore, metals must become more sustainable. A circular economy model does not work, because market demand exceeds the available scrap currently by about two-thirds. Even under optimal conditions, at least one-third of the metals will also in the future come from primary production, creating huge emissions. Although the influence of metals on global warming has been discussed with respect to mitigation strategies and socio-economic factors, the fundamental materials science to make the metallurgical sector more sustainable has been less addressed. This may be attributed to the fact that the field of sustainable metals describes a global challenge, but not yet a homogeneous research field. However, the sheer magnitude of this challenge and its huge environmental effects, caused by more than 2 billion tonnes of metals produced every year, make its sustainability an essential research topic not only from a technological point of view but also from a basic materials research perspective. Therefore, this paper aims to identify and discuss the most pressing scientific bottleneck questions and key mechanisms, considering metal synthesis from primary (minerals), secondary (scrap), and tertiary (re-mined) sources as well as the energy-intensive downstream processing. Focus is placed on materials science aspects, particularly on those that help reduce CO2 emissions, and less on process engineering or economy. The paper does not describe the devastating influence of metal-related greenhouse gas emissions on climate, but scientific approaches how to solve this problem, through research that can render metallurgy fossil-free. The content is considering only direct measures to metallurgical sustainability (production) and not indirect measures that materials leverage through their properties (strength, weight, longevity, functionality).

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Review on Vertical Twin-Roll Strip Casting: A Key Technology for Quality Strips

Cited by 18 publications

References 69 publications

Oxidation Resistant Nickel Aluminide Coating on Niobium Alloy C103 for High Temperature Aerospace Applications

Oxidation Resistant Nickel Aluminide Coating on Niobium Alloy C103 for High Temperature Aerospace Applications

Numerical Analysis of Twin-Roll Casting of Strips With Profiled Cross-Section

The Materials Science behind Sustainable Metals and Alloys

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