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Abnormal Grain Growth of Fe-3%Si Steel Approached by Solid-State Wetting Mechanism

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Abstract:

Abnormal grain growth (AGG) takes place in many metallic systems especially after recrystallization of deformed polycrystals. A famous example of AGG in metallic system is the Goss texture in Fe-3%Si steel. During high temperature annealing of Fe-3%Si sheet, a few near Goss {110} <001> grains grow exclusively fast and consume the matrix grains. Therefore, the grains which have near Goss orientation have special advantage over other grains. As a new approach to the growth advantage of AGG, we suggested the solid-state wetting mechanism, where a grain wets or penetrates the grain boundary or the triple junction of its neighboring grains. The solid-state wetting mechanism for the evolution of the Goss texture in Fe-3%Si steel was studied experimentally and by phase-field model (PFM) simulation.

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Periodical:

Advanced Materials Research (Volumes 26-28)

Pages:

65-68

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.26-28.65

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Online since:

October 2007

Authors:

Kyung Jun Ko, Pil Ryung Cha, Jong Tae Park, Jae Kwan Kim, Nong Moon Hwang

Keywords:

Abnormal Grain Growth, Fe-3% Si, Goss Orientation, Phase Field Modellig, Solid-State Wetting

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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