Microstructure and texture evolution after twin roll casting and subsequent cold rolling of Al–Mg–Mn aluminium alloys

Gras, Ch.; Meredith, Mark W.; Hunt, J. D.

doi:10.1016/j.jmatprotec.2005.03.034

Cited by 56 publications

(9 citation statements)

References 24 publications

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“…In TRC, molten metal is fed onto water-cooled rolls, where it solidifies, and is then rolled, producing sheet directly from the melt. This casting technique has numerous advantages, such as reduction of capital costs, energy consumption, operating costs and scrap rate compared with the conventional direct chill casting route 3 . However, the development of the texture from the as-cast state to the cold rolled and annealed states is still not fully understood.…”

Section: Introductionmentioning

confidence: 99%

Texture analysis of cold rolled and annealed aluminum alloy produced by twin-roll casting

2011

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A 7.4 mm thick strip of 3003 aluminum alloy produced by the industrial twin-roll casting (TRC) process was homogenized at 500 °C for 12 hours, after which it was cold rolled in two conditions: 1) to reduce the strip's thickness by 67%, and 2) to reduce it by 91%. The alloy was annealed at 400 °C for 1 hour in both conditions. The results revealed that a rotated cube texture, the {001}<110> component, predominated in the as-cast condition and was transformed into brass, copper and S type textures during the cold rolling process. There was practically no difference between the deformation textures at the two thickness reductions.

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Section: Introductionmentioning

confidence: 99%

Texture analysis of cold rolled and annealed aluminum alloy produced by twin-roll casting

2011

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“…Essa componente de textura ocorre, comumente, na superfície de chapas deformadas de ligas de alumínio. Ela é causada pelo atrito do metal com o cilindro de laminação durante o processo de lingotamento contínuo, como discutido por alguns autores (Benum et al, 1994;Gras et al, 2005), enquanto a textura cubo aparece em ligas de alumí-nio laminadas (Engler & Lücke, 1992). Na Tabela 4, também pode ser observado que, na região de ¼ da espessura da chapa, as componentes de textura encontradas foram {001}<100> cubo, bem como {011}<100> Goss e {123}<634> S. A componente {001}<310> também apareceu.…”

Section: Textura Cristalográficaunclassified

“…Nesse contexto, as mudanças na textura de uma liga de alumínio podem causar mudanças nas suas propriedades e na sua trabalhabilidade (Gras et al, 2005;Engler et al, 2000).…”

Section: Figuraunclassified

Um estudo comparativo entre chapas produzidas pelos processos de lingotamento contínuo e de lingotamento semicontínuo da liga AA4006: microestrutura e textura cristalográfica

Souza

Lima²,

Plaut

et al. 2012

Rem: Rev. Esc. Minas

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ResumoNesse trabalho, foi realizado um estudo comparativo da microestrutura e da textura cristalográfica entre chapas da liga AA4006 produzidas por dois processos industriais de lingotamento: contínuo (Twin roll caster TRC) e semicontínuo (Direct chill DC). Para a caracterização microestrutural, foram utilizadas as técnicas de microscopia óptica com luz polarizada, microscopia eletrônica de varredura, medidas de condutividade elétrica e ensaios de dureza Brinell. A textura cristalográfica foi determinada por difração de raios X. Foram detectadas e discutidas diferenças significativas nas morfologias e distribuições de grãos e de partículas de fases intermetálicas. O estudo da textura cristalográfica foi realizado ao longo da espessura das tiras e os resultados mostraram variações significativas da textura entre as chapas ao longo da espessura. A chapa produzida por lingotamento contínuo apresentou uma típica textura de cisalhamento, nas proximidades de sua superfície, enquanto que, nas regiões mais internas, a fibra b foi observada.Palavras-chave: Liga AA4006, lingotamento contínuo, lingotamento semicontínuo, microestrutura, textura cristalográfica. Abstract A comparative microstructural study has been performed in AA4006 alloy strips produced by two industrial casting processes: twin roll caster (TRC) and direct chill (DC

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“…One of the possibilities how to handle this situation is a use of a different casting technique producing sheets with equiaxed grains and homogeneous microstructure. One of such techniques is twin-roll casting (TRC) where a molten metal is directed between two water-cooled rolls, where it directly solidifies and forms a sheet with thickness of several mm [13,14]. However, the different casting procedure leads to a different initial microstructure -e.g.…”

Section: Introductionmentioning

confidence: 99%

Transmission Electron Microscopy Study of Microstructure Evolution of Al-Mg-Sc Alloy after Annealing at 120°

et al. 2018

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The Al-Mg-Sc alloys are used in aerospace and shipbuilding industry due to their good mechanical properties such as corrosion resistance, weldability and possibility for superplastic forming. Addition of Sc with Zr may further lead to enhancement of their performance by precipitation of coherent particles of Al3(Sc,Zr) phase which are known to stabilize the microstructure and hinder the recrystallization. The role of the material processing on the microstructure and mechanical properties evolution was studied by means of transmission electron microscopy, scanning electron microscopy and resistivity measurement. The Al-Mg-Sc-Zr alloy was manufactured by two different manners-conventional casting and twin-roll casting and subjected to deformation by equal-channel angular pressing. The shape and nature of the grains significantly influenced precipitation of β-phase Al3Mg2, which may be detrimental for such kind of materials in the terms of corrosion resistance. The worst properties exhibited the conventionally cast and rolled material with a pancake grain structure where the β-phase particles forms as continuous layer along the (sub)grain boundaries.

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Microstructure and texture evolution after twin roll casting and subsequent cold rolling of Al–Mg–Mn aluminium alloys

Cited by 56 publications

References 24 publications

Texture analysis of cold rolled and annealed aluminum alloy produced by twin-roll casting

Texture analysis of cold rolled and annealed aluminum alloy produced by twin-roll casting

Um estudo comparativo entre chapas produzidas pelos processos de lingotamento contínuo e de lingotamento semicontínuo da liga AA4006: microestrutura e textura cristalográfica

Transmission Electron Microscopy Study of Microstructure Evolution of Al-Mg-Sc Alloy after Annealing at 120°

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