Formation of abnormal nodular ferrite with interphase precipitation in a vanadium microalloyed low carbon steel

Research output: Contribution to journalArticlepeer-review

Abstract

Abnormal nodular ferrite (NF) with vanadium carbide (VC) interphase precipitation was observed in a vanadium-microalloyed low carbon steel. The NF is characterized as a structure with a high density of low-angle boundaries, having an irrational ferrite/austenite orientation relationship (OR) with angular deviation of 15-30 ° from the exact Kurdjumov-Sachs OR with its neighboring austenite grain into which it grows. The growth of NF is substantially faster than that of normal grain boundary ferrite in the same alloy. Even in one single NF, the formation of multiple variants of VC interphase precipitation was confirmed, each of which was bordered by low-angle boundaries.

Original languageEnglish
Article number113823
JournalScripta Materialia
Volume198
DOIs
Publication statusPublished - 2021 Jun

Keywords

  • Eutectoid transformation
  • Ferrite
  • Interphase precipitation
  • Microalloying
  • Steel

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

Fingerprint Dive into the research topics of 'Formation of abnormal nodular ferrite with interphase precipitation in a vanadium microalloyed low carbon steel'. Together they form a unique fingerprint.

Cite this