Quantitative analysis of the dilatation during an isothermal decomposition of austenites

IMR OpenIR

	Quantitative analysis of the dilatation during an isothermal decomposition of austenites
	J. Z. Zhao; C. Mesplont; B. C. De Cooman
	2002
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	332 期号:1-2 页码:110-116
摘要	The dilatation of hypoeutectoid steels during an isothermal transformation has been analysed. A model accounting for the effect of carbon redistribution has been developed which can be applied not only to the calculation of the dilatation during an isothermal transformation but also to the extraction of the phase change kinetics from a dilatation curve which may correspond to a multistep phase transformation. The model is validated by comparing it with the experimental results for an interstitial free steel, The dilatation of Fe-C steels during an isothermal transformation has been calculated and discussed. It is indicated that the isothermal formation of ferrite causes a different linear dependence of the relative length change on the volume fraction of the transformed austenite compared with the pearlite type decomposition. Isothermal transformation experiments have been carried out with an experimental bainitic grade steel. The model was successfully applied to extract the phase transformation kinetics from the dilatation curves of this steel. (C) 2002 Elsevier Science B.V. All rights reserved.
部门归属	state univ ghent, lab iron & steelmaking, b-9052 ghent, belgium. chinese acad sci, inst met res, shenyang 110015, peoples r china.;zhao, jz (reprint author), state univ ghent, lab iron & steelmaking, technologiepk 9, b-9052 ghent, belgium
关键词	Steels Dilatation Phase Transformation Kinetics Mathematical Model Alloys
URL	查看原文
WOS记录号	WOS:000176260800015
引用统计	被引频次：22[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/36562
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	J. Z. Zhao,C. Mesplont,B. C. De Cooman. Quantitative analysis of the dilatation during an isothermal decomposition of austenites[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2002,332(1-2):110-116.
APA	J. Z. Zhao,C. Mesplont,&B. C. De Cooman.(2002).Quantitative analysis of the dilatation during an isothermal decomposition of austenites.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,332(1-2),110-116.
MLA	J. Z. Zhao,et al."Quantitative analysis of the dilatation during an isothermal decomposition of austenites".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 332.1-2(2002):110-116.