Effect of strain rate on mechanical properties of fe-30mn-3si-4al twip steel

Zhiping Xiong*, Leigang Gu, Yeke Wang, Jicheng Zhao, Weiping Bao, Xueping Ren

*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

Influence of strain rate on mechanical properties of Fe-30Mn-3Si-4Al TWIP steel was studied by compression experiments, indicating that TWIP steel has strain rate softening effect, strain rate insensitivity, and also strain rate hardening effect. According to strain rate sensitivity m changing with strain rate, effect of strain rate on TWIP steel mechanical properties can be divided into three stages: quasi-static stage with strain rate ranging from 10-3 to 100 s-1; high-strain rate stage with strain rate ranging from 701 to 5108 s-1; super-high-strain rate stage with strain rate ranging from 10335 to 30147 s-1. Adiabatic temperature rise tends to increase with strain rate. Strain hardening exponent is divided into three parts: dislocation strengthening stage, twinning strengthening stage and thermal softening stage.

Original languageEnglish
Title of host publicationFrontiers of Materials, Chemical and Metallurgical Technologies
Pages1018-1022
Number of pages5
Edition1
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 International Conference on Chemical Engineering, Metallurgical Engineering and Metallic Materials, CMMM 2012 - KunMing, China
Duration: 12 Oct 201213 Oct 2012

Publication series

NameAdvanced Materials Research
Number1
Volume581-582
ISSN (Print)1022-6680

Conference

Conference2012 International Conference on Chemical Engineering, Metallurgical Engineering and Metallic Materials, CMMM 2012
Country/TerritoryChina
CityKunMing
Period12/10/1213/10/12

Keywords

  • Shpb
  • Strain hardening exponent
  • Strain rate sensitivity
  • Twip steel

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