Relation among rolling parameters, microstructures and mechanical properties in an acicular ferrite pipeline steel

CORC > 金属研究所 > 中国科学院金属研究所

	Relation among rolling parameters, microstructures and mechanical properties in an acicular ferrite pipeline steel
	W. Wang ; W. Yan ; L. Zhu ; P. Hu ; Y. Y. Shan ; K. Yang
刊名	Materials & Design
	2009
卷号	30 期号:9 页码:3436-3443
关键词	Ferrous metals and alloys Mechanical Microstructure low-carbon precipitation behavior transformation
ISSN号	0261-3069
中文摘要	The correlation among thermo-mechanical controlled processing (TMCP) parameters, microstructures and mechanical properties of an acicular ferrite (AF) pipeline steel was investigated in this study. The steel was hot rolled by four different kinds of TMCP to obtain different AF microstructures, and the corresponding mechanical properties were analyzed. Electron backscatter diffraction (EBSD) analysis was conducted to determine the effective grain size (EGS) in the steel. It was found that the EGS in the steel reduced obviously with decrease of the finish rolling temperature (FRT), but little changed with the cooling rate (CR) and the simulated coiling temperature (SCT). Additionally, the fraction of low angle grain boundaries (LAGBs) increased with increasing CR in the experimental range. It was shown that yield strength of the steel was enhanced by the increased CR and SCT, and reduced FRT, which were corresponding with the increases of LAGB fraction and precipitated carbonitrides as well as the decrease of EGS, respectively. Charpy impact results showed that the low temperature toughness of the steel with FRT about 40 degrees C above Ar(3) tended to be the best, which was in good accordance with the highest fraction of high angle grain boundaries (HAGBs), but seemed not to be related with the EGS. (C) 2009 Elsevier Ltd. All rights reserved.
原文出处	://WOS:000267892200012
公开日期	2012-04-13
内容类型	期刊论文
源URL	[http://210.72.142.130/handle/321006/32380]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	W. Wang,W. Yan,L. Zhu,et al. Relation among rolling parameters, microstructures and mechanical properties in an acicular ferrite pipeline steel[J]. Materials & Design,2009,30(9):3436-3443.
APA	W. Wang,W. Yan,L. Zhu,P. Hu,Y. Y. Shan,&K. Yang.(2009).Relation among rolling parameters, microstructures and mechanical properties in an acicular ferrite pipeline steel.Materials & Design,30(9),3436-3443.
MLA	W. Wang,et al."Relation among rolling parameters, microstructures and mechanical properties in an acicular ferrite pipeline steel".Materials & Design 30.9(2009):3436-3443.