Effect of grain size and martensite fraction on the dynamic factor of dual phase steel microstructures

J. Qu, W. Dabboussi, J. Nemes, S. Yue

Research output: Contribution to journalArticlepeer-review

Abstract

Dual phase microstructures with various ferrite grain sizes and martensite fractions were obtained by a variety of heat treatment conditions on the as-received cold rolled sheet steels. The static (0.01 mm/s) and dynamic (25 m/s) mechanical properties of various microstructures were measured by means of shear punch testing. It was found that both static and dynamic strengths decreased with the increase of ferrite grain size. It was also observed that variation of the dynamic factor with static strength was independent of grain size, but a higher alloying level gave higher dynamic factor values.

Original languageEnglish (US)
Pages (from-to)247-252
Number of pages6
JournalCanadian Metallurgical Quarterly
Volume48
Issue number3
DOIs
StatePublished - Jul 2009

All Science Journal Classification (ASJC) codes

  • Metals and Alloys
  • Industrial and Manufacturing Engineering

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