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Effect of strain path change on the evolution of texture and microstructure during rolling of copper and nickel

Gurao, N.P. ; Sethuraman, S. ; Suwas, Satyam

Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2011-09, Vol.528 (25-26), p.7739-7750 [Periódico revisado por pares]

Kidlington: Elsevier B.V

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  • Título:
    Effect of strain path change on the evolution of texture and microstructure during rolling of copper and nickel
  • Autor: Gurao, N.P. ; Sethuraman, S. ; Suwas, Satyam
  • Assuntos: ANISOTROPY ; Copper ; Cross rolling ; Cross-disciplinary physics: materials science; rheology ; Electron Back Scatter Diffraction ; Exact sciences and technology ; Materials science ; Microstructure ; MICROSTRUCTURES ; Nickel ; Other heat and thermomechanical treatments ; Physics ; ROLLING ; STRAIN ; Strain path ; Surface layer ; Texture ; TEXTURES ; Treatment of materials and its effects on microstructure and properties ; X-ray diffraction
  • É parte de: Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2011-09, Vol.528 (25-26), p.7739-7750
  • Notas: ObjectType-Article-2
    SourceType-Scholarly Journals-1
    ObjectType-Feature-1
    content type line 23
  • Descrição: • Prominent Bs {110}〈112〉 and P(BND) {110}〈111〉 component in cross rolled medium and high SFE copper and nickel on cross rolling. • Weaker texture on cross rolling. • Lower hardness, lower anisotropy on cross rolling. • Viscoplastic self-consistent simulations correctly capture the effect of strain path change on texture evolution during rolling. The effect of strain path change during rolling has been investigated for copper and nickel using X-ray diffraction and electron back scatter diffraction as well as crystal plasticity simulations. Four different strain paths namely: (i) unidirectional rolling; (ii) reverse rolling; (iii) two-step cross rolling and (iv) multi-step cross rolling were employed to decipher the effect of strain path change on the evolution of deformation texture and microstructure. The cross rolled samples showed weaker texture with a prominent Bs {110}〈112〉 and P(BND) {110}〈111〉 component in contrast to the unidirectional and reverse rolled samples where strong S {123}〈634〉 and Cu {112}〈111〉 components were formed. This was more pronounced for copper samples compared to nickel. The cross rolled samples were characterized by lower anisotropy and Taylor factor as well as less variation in Lankford parameter. Viscoplastic self-consistent simulations indicated that slip activity on higher number of octahedral slip systems can explain the weaker texture as well as reduced anisotropy in the cross rolled samples.
  • Editor: Kidlington: Elsevier B.V
  • Idioma: Inglês
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