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Flow behavior of ultra-high strength boron steel at elevated temperature

  • Jun Bao*
  • , Hongsheng Liu
  • , Zhongwen Xing
  • , Baoyu Song
  • , Yuying Yang
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Ultra-high strength boron steel is widely used in a new hot stamping technology which is hot formed and die quenched simultaneously in order to obtain stamping parts with 1500MPa tensile strength or higher. Tensile experiments were carried out with ultra-high strength boron steel in a range of temperature 500°C∼860°C and strain rate 0.01/s∼1/s with the thermal simulation testing machine Gleeble 3800, and the stress-strain curves were obtained. The influences of the deformation temperature and strain rate on the stress-strain curves were analyzed. The results show that hot behavior at elevated temperature of ultra-high strength boron steel consists of strain hardening and dynamic recovery mechanism, which can be accurately described by the mathematic model.

Original languageEnglish
Title of host publicationPhysical and Numerical Simulation of Material Processing VI
EditorsJitai Niu, Jitai Niu, Guangtao Zhou, Guangtao Zhou
PublisherTrans Tech Publications Ltd
Pages191-195
Number of pages5
ISBN (Print)9783037853061
DOIs
StatePublished - 2012
Event6th International Conference on Physical and Numerical Simulation of Materials Processing, ICPNS2010 - Guilin, China
Duration: 16 Nov 201019 Nov 2010

Publication series

NameMaterials Science Forum
Volume704-705
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Conference

Conference6th International Conference on Physical and Numerical Simulation of Materials Processing, ICPNS2010
Country/TerritoryChina
CityGuilin
Period16/11/1019/11/10

Keywords

  • Hot flow behavior
  • Hot stamping
  • Ultra-high strength boron steel

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