Isothermal annealing of thin rolled tungsten plates in the temperature range from 1300 °C to 1400 °C

Umberto M. Ciucani*, Angela Thum, Chloé Devos, Wolfgang Pantleon

*Corresponding author for this work

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Abstract

The annealing behavior of thin tungsten plates of four different thicknesses achieved by warm- and (in two cases) cold-rolling is investigated. Isothermal experiments at five different temperatures between 1300 °C to 1400 °C were performed. Hardness testing of annealed specimens allowed tracking the degradation of the mechanical properties and, indirectly, the microstructural evolution. Supplementary microscopical investigations of the microstructure in the as-received state as well as after annealing were performed to characterize the initial condition and to support the identification of the involved restoration processes. All four tungsten plates undergo microstructural restoration by recovery and recrystallization. The observed differences in their behavior were rationalized in terms of the identified differences in the microstructure in the as-received state, rather than their different initial thickness.

Original languageEnglish
JournalNuclear Materials and Energy
Volume15
Pages (from-to)128-134
ISSN2352-1791
DOIs
Publication statusPublished - 2018

Bibliographical note

© 2018 Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/BY-NC-ND/4.0/).

Keywords

  • Annealing
  • EBSD
  • Hardness testing
  • Recrystallization
  • Thermal stability
  • Tungsten

Activities

  • 1 Participating in or organising a conference

18th International Conference on Fusion Reactor Materials (ICFRM-18)

Umberto Maria Ciucani (Participant)

5 Nov 201710 Nov 2017

Activity: Attending an eventParticipating in or organising a conference

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