Microstructure and texture evolution during thermomechanical processing of β-quenched Zr

D. G. Leo Prakash, M. Preuss, M. Dahlbäck, J. Quinta Da Fonseca

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12 Citations (Scopus)

Abstract

The evolution of microstructure and texture of an α-Zr alloy during thermomechanical processing was investigated, starting from the β-quenched microstructure. The material was rolled at 550 °C to reductions of 10, 20, 40 and 60%, and held at 550 °C for 24 h. EBSD was used to measure the texture at the different reductions and characterize the microstructural evolution, and crystal plasticity finite element modelling was used as a theoretical framework to help understand the changes in texture observed. Our results show that slip, twinning and recrystallization all play a role in the microstructure development during hot rolling. Their contribution to texture development, lamellae break-up and the ultimate development of a bimodal microstructure are discussed.

Original languageEnglish
Pages (from-to)389-401
Number of pages13
JournalActa Materialia
Volume88
DOIs
Publication statusPublished - 15 Apr 2015
Externally publishedYes

Keywords

  • Crystal plasticity
  • Microstructure
  • Texture evolution
  • Thermomechanical processing
  • Zirconium

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