Thermal stability of high temperature deformation induced ferrite in a low carbon steel

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	Thermal stability of high temperature deformation induced ferrite in a low carbon steel
	Z. X. Liu; D. Z. Li; S. P. Lu; G. W. Qiao
	2007
发表期刊	Isij International
ISSN	0915-1559
卷号	47 期号:2 页码:289-293
摘要	A series of unidirectional compression tests for a low carbon steel were performed on a thermal simulating machine Gleeble 3 500, and the thermal stability of high temperature deformation induced ferrite (DIF) was studied systematically through the post-treatments such as isothermally hot holding time above the austenite-ferrite equilibrium transformation temperature Ae(3), cooling rates and annealing temperatures after deformation. The results show that the DIF volume fraction decreases during isothermally hot holding and finally DIF disappears. The DIF grains showed rapid growth at low annealing temperatures (< 200 degrees C) and relatively stable at middle annealing temperatures (200-500 degrees C), lastly rapid growing at high annealing temperatures (500-700 degrees C). Compared with the microstructure of DIF with martensite in quenched specimens, the proeutectoid ferrite and pearlite appear in controlled cooled specimens at low cooling rates (i.e. 10 degrees C/s and 1 degrees C/s). The present experiments revealed that DIF is not stable at the high temperature and hardly conserved in hot mills.
部门归属	chinese acad sci, lab special environm mat, inst met res, shenyang 110016, peoples r china.;liu, zx (reprint author), chinese acad sci, lab special environm mat, inst met res, 72 wenhua rd, shenyang 110016, peoples r china
关键词	Dif Thermal Stability Post Treatments Low Carbon Steel Ultrafine Ferrite Grain-refinement Dynamic Recrystallization Arb Process Transformation Strain Evolution Surface
URL	查看原文
WOS记录号	WOS:000245601500015
引用统计	被引频次：19[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/321006/33730
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. X. Liu,D. Z. Li,S. P. Lu,et al. Thermal stability of high temperature deformation induced ferrite in a low carbon steel[J]. Isij International,2007,47(2):289-293.
APA	Z. X. Liu,D. Z. Li,S. P. Lu,&G. W. Qiao.(2007).Thermal stability of high temperature deformation induced ferrite in a low carbon steel.Isij International,47(2),289-293.
MLA	Z. X. Liu,et al."Thermal stability of high temperature deformation induced ferrite in a low carbon steel".Isij International 47.2(2007):289-293.