Strain hardening and plastic instability of dual-phase steels for strain based design

Kyono Yasuda, Hitoshi Sueyoshi, Nobuyuki Ishikawa, Tatsuya Morikawa, Kenji Higashida

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

For understanding deformation behavior in terms of microstructural aspects, ferrite-bainite steels were analyzed by the micro-grid method and FEA using unit cell model. Using the micro-grid method, it was directly observed that significant localization of strain occurred in ferrite phase adjacent to the ferrite/bainite boundary. From the FE results, higher internal stress was calculated in larger volume fraction of hard phase. Under further deformation, strain hardenability decrease due to lower stress distribution caused by plastic deformation in bainite. From the observation and analysis of the microscopic deformation behavior, a plastic instability condition of ferrite-bainite dual-phase steels was estimated.

Original languageEnglish
Title of host publicationProceedings of the 25th International Ocean and Polar Engineering Conference, ISOPE 2015
PublisherInternational Society of Offshore and Polar Engineers
Pages639-645
Number of pages7
ISBN (Electronic)9781880653890
Publication statusPublished - 2015
Event25th International Ocean and Polar Engineering Conference, ISOPE 2015 - Kona, Big Island, United States
Duration: Jun 21 2015Jun 26 2015

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2015-January
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other25th International Ocean and Polar Engineering Conference, ISOPE 2015
CountryUnited States
CityKona, Big Island
Period6/21/156/26/15

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Strain hardening and plastic instability of dual-phase steels for strain based design'. Together they form a unique fingerprint.

Cite this