Shear and tensile plastic behavior of austenitic steel TRIP-120 compared with martensitic steel HSLA-100

F. Latourte, Z. Feinberg, L. F. Mori, G. B. Olson, H. D. Espinosa

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The mechanical performance of TRIP-120 a novel transformation induced plasticity steel alloy, is evaluated for different loading cases and strain rates. The performance is compared with HSLA-100, a low-alloy steel developed by the United States Navy and currently used in naval hulls. The response of these materials under uniaxial tension and shear was investigated to the point of fracture at isothermal and adiabatic conditions. TRIP-120 shows a significant improvement in dissipated energy at fracture compared to HSLA-100. SEM images of ductile fracture surfaces for tensile and torsion samples of both TRIP-120 and HSLA-100 are compared, and the presence of transformed martensite in the TRIP-120 dynamic torsion specimens is confirmed with optical microscopy and magnetometry.

Original languageEnglish (US)
Pages (from-to)187-204
Number of pages18
JournalInternational Journal of Fracture
Volume162
Issue number1-2
DOIs
StatePublished - Mar 2010

Keywords

  • Dynamic fracture
  • Martensitic steels
  • Phase transformation
  • Shear bands
  • TRIP steels

ASJC Scopus subject areas

  • Computational Mechanics
  • Modeling and Simulation
  • Mechanics of Materials

Fingerprint

Dive into the research topics of 'Shear and tensile plastic behavior of austenitic steel TRIP-120 compared with martensitic steel HSLA-100'. Together they form a unique fingerprint.

Cite this