AUSTENITE GRAIN GROWTH CALCULATION OF 0.028% Nb STEEL

被引：14
作者：
Priadi, D. [1 ]
Napitupulu, R. A. M. [1 ,2 ]
Siradj, E. S. [1 ]
机构：
[1] Univ Indonesia, Dept Met & Mat Engn, Depok, Indonesia
[2] Univ HKBP Nommensen, Dept Mech Engn, Medan, Indonesia
来源：
JOURNAL OF MINING AND METALLURGY SECTION B-METALLURGY | 2011年 / 47卷 / 02期
关键词：
Austenite; Grain growth; Calculation; Niobium steel; MODEL; RECRYSTALLIZATION;
D O I：
10.2298/JMMB100901001P
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Modeling of microstructural evolution has become a powerful tool for materials and process design by providing quantitative relationships for microstructure, composition and processing. Insufficient attention has been paid to predicting the austenite grain growth of microalloyed steel and the effect of undissolved microalloys. In this research, we attempted to calculate a mathematical model for austenite grain growth of 0.028% Nb steel, which can account for abnormal grain growth. The quantitative calculation of austenite grain growth generated from this model fit well with the experimental grain growth data obtained during reheating of niobium steels. The results of this study showed that increasing the temperature increases the austenite grain size, with a sharp gradient observed at higher temperatures.
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收藏
页码：199 / 209
页数：11
相关论文
共 17 条
[1]   GENERALIZED NB(C, N) PRECIPITATION MODEL APPLICABLE TO EXTRA LOW-CARBON STEEL [J].
AKAMATSU, S ;
SENUMA, T ;
HASEBE, M .
ISIJ INTERNATIONAL, 1992, 32 (03) :275-282
[2]   The effects of heating rate on austenite grain growth in a Ti-modified SAE 8620 steel with controlled niobium additions [J].
Alogab, K. A. ;
Matlock, D. K. ;
Speer, J. G. ;
Kleebe, H. J. .
ISIJ INTERNATIONAL, 2007, 47 (07) :1034-1041
[3]   A Model for Precipitation Kinetics in Vanadium Microalloyed Steel [J].
Fang Fang ;
Yong Qi-long ;
Yang Cai-fu ;
Su Hang .
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL, 2010, 17 (02) :36-42
[4]   Determination of driving and pinning forces for static recrystallization during hot rolling of a niobium microalloyed steel [J].
Gómez, M ;
Medina, SF ;
Valles, P .
ISIJ INTERNATIONAL, 2005, 45 (11) :1711-1720
[5]  
Goryany V, 2002, J MIN METALL B, V38, P171
[6]   Effect of silicon on the interaction between recrystallization and precipitationin niobium microalloyed steels [J].
Jiang, L ;
Humphreys, AO ;
Jonas, JJ .
ISIJ INTERNATIONAL, 2004, 44 (02) :381-387
[7]  
Lenard J.G., 1999, MATH PHYS SIMULATION, P167
[8]  
Liu T., 2001, THESIS QUEENS U CANA, P16
[9]   Grain growth predictions in microalloyed steels [J].
Manohar, PA ;
Dunne, DP ;
Chandra, T ;
Killmore, CR .
ISIJ INTERNATIONAL, 1996, 36 (02) :194-200
[10]   Five decades of the Zener equation [J].
Manohar, PA ;
Ferry, M ;
Chandra, T .
ISIJ INTERNATIONAL, 1998, 38 (09) :913-924
12