Journal Article Dynamic tensile properties of reduced-activation ferritic steel F82H

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

100pp.146 - 151 , 2015-11 , Elsevier B.V.
ISSN:0920-3796
NCID:AA10691446
Description
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.
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http://repository.kulib.kyoto-u.ac.jp/dspace/bitstream/2433/202564/1/j.fusengdes.2015.05.001.pdf

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