Modeling of subsequent ferrite formation in C-Mn steel after austenite hot deformation

IMR OpenIR

	Modeling of subsequent ferrite formation in C-Mn steel after austenite hot deformation
	Lan, YJ; Huang, CJ; Li, DZ; Li, YY
通讯作者	Lan, YJ()
	2003-03-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	39 期号:3 页码:242-248
摘要	The dislocation density and stored energy of hot deformation were calculated to evaluate quantitatively the effect of hot plastic deformation of austenite on the kinetics of subsequent ferrite transformation. Due to stored energy, the gamma --> alpha equilibrium transformation temperature A(e3) increases to a higher temperature. Under the hot deformation conditions tested, the modeled stored energy is approximately 10-20 J/mol, and the equilibrium temperature A(e3) increases about 10 K, so the practical start transformation temperature moves to higher temperature region. The total driving force DeltaG(gamma-->alpha) of transformation is increased due to the additional stored energy DeltaG(def) too, so the move velocity of the gamma/alpha-interface is quickened. The growth velocity of ferrite increases, which accelerates the transformation progress of ferrite. The equilibrium parameters were calculated by use of super-elements lattice model in continuously cooling. Compared with the results measured in published literature, the modeled transformation dynamics of subsequent ferrite of C-Mn steel after austenite hot deformation agrees well with the measured results.
关键词	C-Mn steel hot deformation stored energy phase transformation dynamics
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000182216200004
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：2[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/321006/116410
专题	中国科学院金属研究所
通讯作者	Lan, YJ
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Lan, YJ,Huang, CJ,Li, DZ,et al. Modeling of subsequent ferrite formation in C-Mn steel after austenite hot deformation[J]. ACTA METALLURGICA SINICA,2003,39(3):242-248.
APA	Lan, YJ,Huang, CJ,Li, DZ,&Li, YY.(2003).Modeling of subsequent ferrite formation in C-Mn steel after austenite hot deformation.ACTA METALLURGICA SINICA,39(3),242-248.
MLA	Lan, YJ,et al."Modeling of subsequent ferrite formation in C-Mn steel after austenite hot deformation".ACTA METALLURGICA SINICA 39.3(2003):242-248.