Mechanical property of lotus-type porous carbon steel fabricated by continuous casting method

Y. Kawamura, Shinsuke Suzuki, S. Y. Kim, H. Nakajima, M. Kashihara, H. Yonetani

Research output: Contribution to journalArticle

Abstract

Lotus-type porous carbon steel (AISI1018) with aligned cylindrical pores was fabricated by continuous casting method in a mixture gas atmosphere (PN 2=0.8MPa, PAr=1.7MPa). Compressive yield strength of the nonporous and the lotus carbon steels was measured in the direction parallel to the transference direction. The compressive stress of the lotus carbon steel is lower than that of the nonporous carbon steel because of the existence of pores. The specific compressive yield strength (σ0.2/ρ) of as-cast lotus carbon steel is higher than that of as-cast nonporous carbon steel, which is due to the solid solution hardening of nitrogen. Although the microstructure of carbon steel changes from Widmannstätten to homogeneous ferrite and pearlite by normalizing, the yield strength does not change significantly by normalizing. The microstructure of lotus carbon steel changes from Widmannstätten to martensite by quenching so that the yield strength increases significantly.

Original languageEnglish
Article number012071
JournalJournal of Physics: Conference Series
Volume165
DOIs
Publication statusPublished - 2009
Externally publishedYes

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carbon steels
mechanical properties
yield strength
normalizing
casts
porosity
pearlite
microstructure
low carbon steels
martensite
hardening
gas mixtures
ferrites
solid solutions
quenching
nitrogen
atmospheres

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Mechanical property of lotus-type porous carbon steel fabricated by continuous casting method. / Kawamura, Y.; Suzuki, Shinsuke; Kim, S. Y.; Nakajima, H.; Kashihara, M.; Yonetani, H.

In: Journal of Physics: Conference Series, Vol. 165, 012071, 2009.

Research output: Contribution to journalArticle

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