Paper Title:

Effect of Rare Earth (La) on Dynamic Softening and Precipitation of Low Carbon High Niobium Steel

Periodical Advanced Materials Research (Volume 509)
Main Theme Latest Development of Applied Materials Technology
Edited by S.T. Tu, G.Z. Wang and J.M. Gong
Pages 64-67
DOI 10.4028/www.scientific.net/AMR.509.64
Citation Qi Fang et al., 2012, Advanced Materials Research, 509, 64
Online since April, 2012
Authors Qi Fang, Wen Zhong Song, Wei Sun, Zi Li Jin, Hui Ping Ren
Keywords Grain Refinement, Low Carbon High Niobium Steel, Precipitation, Rare Earth (RE)
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Abstract

Rare earth (RE) has purification, denatured mixture and micro alloy function in steel. High Nb containing in steel can expend austenite non-recrystallization region, improve rolling temperature and lower equipment load. Effect of RE on dynamic recrystallization of low carbon high niobium steel is investigated by using thermal simulation experiment in this paper. Experimental results show that dynamic recrystallization does not occur in two test steel below 1000℃. RE elements can increase dynamic recovery beginning strains, refine and disperse M/A organization and change precipitates into small triangle shape.