New steel making process through reduction and sintering of cementite poik

N. Ouchida, M. Egashira, K. Nakashima, T. Tsuchiyama, S. Takaki

Research output: Contribution to journalArticle

Abstract

A new steel making process through reduction and sintering treatment of cementite powder was proposed, and microstructure of the material obtained by this process was examined by scanning electron microscopy and EBSP analysis. The cementite powder obtained by mechanical alloying was compacted under high pressure up to l000 MPa, and then reduced during sintering in a hydrogen (H2) gas atmosphere at elevated temperatures. The cementite compacts were completely reduced by the sintering at 1073 K to 1273 K for 18ks. The relative density of sintered material became 95% or more when the temperature was elevated above 1173 K. The SEM observation and EBSP analysis indicated that the obtained steel has equiaxed ferrite-pearlite structure with grain size of around 5 μm and the crystallographic orientations of ferrite grains are randomly distributed.

Original languageEnglish
Pages (from-to)76-79
Number of pages4
JournalCailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment
Volume25
Issue number5
Publication statusPublished - Oct 1 2004

Fingerprint

cementite
Steel
sintering
Sintering
steels
Powders
Ferrite
ferrites
pearlite
Scanning electron microscopy
scanning electron microscopy
Pearlite
Mechanical alloying
alloying
Hydrogen
grain size
Gases
atmospheres
Temperature
microstructure

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

New steel making process through reduction and sintering of cementite poik. / Ouchida, N.; Egashira, M.; Nakashima, K.; Tsuchiyama, T.; Takaki, S.

In: Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment, Vol. 25, No. 5, 01.10.2004, p. 76-79.

Research output: Contribution to journalArticle

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