The Nano Carbide Control: Design of Super Ferrite in Steels

Abstract:

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The ferrite phase strengthened by the highly dense nanometer-sized carbides is named super ferrite. The effects of Ti, Ti-Mo, and Ti-Nb micro-alloy additions on the precipitation strengthening in three experimental high-strength low-alloy steels have been investigated by using transmission electron microscopy and micro-hardness measurement. The objective of this work was to study the carbide precipitation under the conditions of isothermal transformation. It was found that interphase precipitation of nano-sized carbide in Steel Ti-Mo had very strong contribution to the hardness of the steel. The distribution of interphase precipitated carbides is associated with both the sheet spacing and the inter-particle spacing, which have been studied. The result implies that (Ti, Mo)C particles possess an excellent effect on precipitation hardening.

Info:

Periodical:

Advanced Materials Research (Volumes 89-91)

Edited by:

T. Chandra, N. Wanderka, W. Reimers , M. Ionescu

Pages:

663-668

DOI:

10.4028/www.scientific.net/AMR.89-91.663

Citation:

H. W. Yen et al., "The Nano Carbide Control: Design of Super Ferrite in Steels", Advanced Materials Research, Vols. 89-91, pp. 663-668, 2010

Online since:

January 2010

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Price:

$35.00

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