Effect of austenite grain size on the morphology and crystallography of lath martensite in low carbon steels

S. Morito, H. Saito, T. Ogawa, T. Furuhara, T. Maki

Research output: Contribution to journalArticlepeer-review

195 Citations (Scopus)

Abstract

The crystallography, microstructure and mechanical property of as-quenched martensite of Fe-0.2C-Mn(-V) alloys of which the prior austenite grain sizes are 370-2 μm were studied. The prior austenite grain, whose size is larger than 28 μm, is divided by several packets. Those packets are subdivided by blocks containing sub-blocks, each of which corresponds to the Kurdjumov-Sachs variant. When the prior austenite grain size is about 2 μm, one packet tends to grow predominantly. Each packet is divided by blocks containing sub-blocks.

Original languageEnglish
Pages (from-to)91-94
Number of pages4
JournalIsij International
Volume45
Issue number1
DOIs
Publication statusPublished - 2005
Externally publishedYes

Keywords

  • Austenite grain size
  • Fe-Mn-C alloy
  • Iath martensite
  • Microstructure

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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