Dynamic tensile properties of reduced-activation ferritic steel F82H

Ryuta Kasada, Daiki Ishii, Masami Ando, Hiroyasu Tanigawa, Mitsuru Ohata, Satoshi Konishi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The dynamic tensile properties of reduced-activation ferritic steel F82H was characterized by high-speed tensile tests over a strain-rate range of 0.01-1400 s-1 at temperatures of 296 and 423 K. As a result, the tensile strength of the F82H steel appears to be sensitive to strain-rate. This is explained by the activation volume of gliding dislocation. The uniform elongation is also sensitive to strain-rate but true fracture strain is considered to be less sensitive. Zerilli-Armstrong bcc model is found adequate to describe the dependence of yield stress of F82H on temperature and strain-rate tested in the present study.

Original languageEnglish
Pages (from-to)146-151
Number of pages6
JournalFusion Engineering and Design
Volume100
DOIs
Publication statusPublished - 2015 Nov 1
Externally publishedYes

Keywords

  • Deformation
  • Dynamic tensile properties
  • High-speed tensile test
  • Reduced-activation ferritic steel

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

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