Effect of tensile test specimen thickness on deformation energy for duplex stainless steel

Takuya Hirashima, Masatoshi Aramaki, Masayuki Yamamoto, Kyono Yasuda, Shinji Munetoh, Osamu Furukimi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Effect of specimen thickness on ductile fracture energy for ferrite-austenite duplex stainless steel was investigated by using tensile strain test. It was revealed that both uniform and local deformation energies decreased with the decrease in the specimen thickness. Voids in a thicker specimen can be easily formed at the lower plastic equivalent strain because of the steep increase in the triaxiality. The decrease in the local deformation energy was due to the void growth near the fracture surface depending on the steep increase in the stress triaxiality.

Original languageEnglish
Pages (from-to)308-314
Number of pages7
JournalTetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan
Volume101
Issue number5
DOIs
Publication statusPublished - 2015

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Metals and Alloys
  • Materials Chemistry

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