Journal Published Online: 11 March 2011
Volume 8, Issue 3

The Effect of Si on the Precipitates for Nb Bearing High Purity Ferritic Stainless Steel

CODEN: JAIOAD

Abstract

The effect of Si on the precipitation of the Laves phase in high purity 17Cr–0.5Nb ferritic stainless steel was investigated. Precipitation was observed using a scanning electron microscope and transmission electron microscope. Quantitative analysis of the amount of precipitates as Laves phase was performed. The precipitation rate of the Laves phase and the equilibrium amount of precipitates of the Laves phase increased with the amount of Si. A Si peak was detected in the Laves phase in 0.5Si steel by energy dispersive X-ray spectrometer analysis. It was revealed that precipitation of the Laves phase was promoted and the chemical composition of the Laves phase was changed by the addition of Si.

Author Information

Ito, Masatoshi
Kyushu Univ., Fukuoka, Japan
Honda, Yuma
Kyushu Univ., Fukuoka, Japan
Aramaki, Masatoshi
Kyushu Univ., Fukuoka, Japan
Kato, Yasushi
JFE Steel Corporation, Chuo-ku, Chiba, Japan
Furukimi, Osamu
Kyushi Univ., Fukuoka, Japan
Pages: 4
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Stock #: JAI103250
ISSN: 1546-962X
DOI: 10.1520/JAI103250