Evolution, of precipitates in the Nb-Ti-V microalloyed HSLA steels during reheating

被引:100
|
作者
Hong, SG
Jun, HJ [1 ]
Kang, KB
Park, CG
机构
[1] Pohang Univ Sci & Technol, Dept Mat Sci & Engn, Pohang 790784, South Korea
[2] Pohang Univ Sci & Technol, Ctr Adv Aerosp Mat, Pohang 790784, South Korea
[3] POSCO, Tech Res Labs, Kwangyang 545090, South Korea
关键词
steels; precipitates; reheating; transmission electron microscopy (TEM);
D O I
10.1016/S1359-6462(02)00567-5
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
In as-cast slab steel, dendritic Nb-rich (Ti,Nb)(C,N) carbonitrides were observed which have a thermodynamically stable chemistry at lower than 1000 degreesC. These dendritic carbonitrides were dissolved and then re-precipitated to two kinds of carbonitrides, Ti- and N-rich and Ti- and C-rich (Ti,Nb)(C,N) carbonitrides during reheating. (C) 2003 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1201 / 1206
页数:6
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