Formation of AlN in the N Added 18Cr Ferritic Stainless Steels

Abstract:

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Al addition is known to enhance corrosion resistance and high temperature properties in ferritic and austenitic stainless steels. Due to the addition of Al, formation and characteristic of nitride were studied in Al added 18Cr stainless steels. The phase diagram and segregation were estimated with addition of Al in 18Cr stainless steels by the Thermo-calc program. Formation behavior of the AlN phase was studied by observing the solid/liquid interface through directional solidification and the phase characterization was performed by XRD in the extracted precipitates from the matrix. It was confirmed that the AlN phase formed at the cell boundary from the liquid in 3 and 5 wt.% Al added 18Cr stainless steels.

Info:

Periodical:

Materials Science Forum (Volumes 486-487)

Edited by:

Hyung Sun Kim, Sang-Yeop Park, Bo Young Hur and Soo Wohn Lee

Pages:

428-431

DOI:

10.4028/www.scientific.net/MSF.486-487.428

Citation:

H.C. Kim et al., "Formation of AlN in the N Added 18Cr Ferritic Stainless Steels", Materials Science Forum, Vols. 486-487, pp. 428-431, 2005

Online since:

June 2005

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Price:

$35.00

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