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

    Volume 8, Issue 3 (March 2011)

    ISSN: 1546-962X

    CODEN: JAIOAD

    Published Online: 11 March 2011

    Page Count: 4


    Ito, Masatoshi
    Graduate Student, Kyushu Univ., Fukuoka,

    Honda, Yuma
    Graduate Student, Kyushu Univ., Fukuoka,

    Aramaki, Masatoshi
    Research Associate, Kyushu Univ., Fukuoka,

    Kato, Yasushi
    Senior Researcher, JFE Steel Corporation, Chuo-ku, Chiba,

    Furukimi, Osamu
    Professor, Kyushi Univ., Fukuoka,

    (Received 13 July 2010; accepted 23 January 2011)

    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.


    Paper ID: JAI103250

    DOI: 10.1520/JAI103250

    ASTM International is a member of CrossRef.

    Author
    Title The Effect of Si on the Precipitates for Nb Bearing High Purity Ferritic Stainless Steel
    Symposium 18th IFHTSE Congress, 2010-07-26
    Committee A01