Prediction of microstructure and mechanical properties of hot rolled steel strip: Part I - Description of models

IMR OpenIR

	Prediction of microstructure and mechanical properties of hot rolled steel strip: Part I - Description of models
	Lan, YJ ; Li, DZ ; Sha, XC ; Li, YY
通讯作者	Lan, YJ(yjlan@imr.ac.cn)
	2004-07-01
发表期刊	STEEL RESEARCH INTERNATIONAL
ISSN	0177-4832
卷号	75 期号:7 页码:462-467
摘要	A metallurgical through-process model is presented which describes the microstructural evolution and predicts the final mechanical properties of low carbon steel during hot strip rolling. Process models concern the thermal and deformation phenomena, which take into account the strain, strain rate and temperature distribution along the length of the strip. And the metallurgical models cover five modules, which are (i) austenitization of cast slab in reheating furnace, (ii) recrystallization of austenite in hot rolling, (iii) phase transformation of austenite-ferrite in laminar cooling on the run-out-table, (iv) grain growth after coiling, and (v) final structure-mechanical properties of products. Temperature is the main parameter and has dominant influence on the microstrutural evolution and the mechanical properties. The related temperature variation in hot strip rolling concerns air cooling, scaling, water cooling, heat transmission by roll contact, heat generation by deformation and friction. These complex factors are incorporated into the thermal models to simulate the temperature distribution along the length of the strip from the reheating furnace exit to the down-coiler. A self-learning algorithm is employed to improve the calculation accuracy and the computational temperatures are compared with the measured ones at typical locations. In the structure-property relationships, two key process parameters (e.g., finishing exit temperature (FT7) and coiling temperature (CT)) are introduced in the model to consider the influence of morphology of microstructure on mechanical properties.
关键词	process models metallurgical models mechanical properties hot strip steel
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:000222994700006
出版者	VERLAG STAHLEISEN MBH
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/81463
通讯作者	Lan, YJ
作者单位	1.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China 2.Anshan Iron & Steel Grp Corp, Anshan, Peoples R China
推荐引用方式 GB/T 7714	Lan, YJ,Li, DZ,Sha, XC,et al. Prediction of microstructure and mechanical properties of hot rolled steel strip: Part I - Description of models[J]. STEEL RESEARCH INTERNATIONAL,2004,75(7):462-467.
APA	Lan, YJ,Li, DZ,Sha, XC,&Li, YY.(2004).Prediction of microstructure and mechanical properties of hot rolled steel strip: Part I - Description of models.STEEL RESEARCH INTERNATIONAL,75(7),462-467.
MLA	Lan, YJ,et al."Prediction of microstructure and mechanical properties of hot rolled steel strip: Part I - Description of models".STEEL RESEARCH INTERNATIONAL 75.7(2004):462-467.