Microstructures developed by super-rapid induction heating-and-quenching (SRIHQ) of Fe-1.4%Cr-1%C pearlitic steel

Yuichiro Koizumi, Takeshi Otsuka, Yoritoshi Minamino, Takemori Takayama, Masanori Ueyama, Takeshi Daio, Satoshi Hata

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Microstructures and hardness of a Fe-1.4%Cr-1%C pearlitic steel processed by super-rapid induction heating-and-quenching (SRIHQ) under various conditions have been investigated. A nano-scaled laminated microstructure composed of two different types of martensite (highly-twinned or containing a high dislocation density) was formed and the maximum hardness was obtained by heating to 1223. K in 0.5. s and quenched. Electron energy loss spectroscopy indicated that the two different types of martensite were formed depending on the local solute-concentration in the non-uniform solute-distribution realized by the SRIHQ-process.

Original languageEnglish
Pages (from-to)29-35
Number of pages7
JournalMaterials Science and Engineering A
Volume577
DOIs
Publication statusPublished - 2013 Aug 10

Keywords

  • Electron microscopy
  • Hardening
  • Martensitic transformations
  • Steel

ASJC Scopus subject areas

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

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