| Fine Microstructure of Bainitic Ferrite in Bainitic Steel |
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| 引用本文： | LI Feng-zhao 1,2,AO Qing 1,2,QIN Chao 1,JIANG Jiang 2,LIU Yu-xian 2,MENG Xiang-min 1,HE Lian-long 1 (1. Institute of Metal Research,CAS,Shenyang 110015,China, 2. Shandong University,Jinan 250061,China). Fine Microstructure of Bainitic Ferrite in Bainitic Steel[J]. 钢铁研究学报(英文版), 2003, 10(2) |
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| 作者姓名： | LI Feng-zhao 1 2 AO Qing 1 2 QIN Chao 1 JIANG Jiang 2 LIU Yu-xian 2 MENG Xiang-min 1 HE Lian-long 1 (1. Institute of Metal Research CAS Shenyang 110015 China 2. Shandong University Jinan 250061 China) |
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| 作者单位： | 1. Institute of Metal Research，CAS，Shenyang 110015，China; 2. Shandong University，Jinan 250061，China |
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| 基金项目： | ItemSponsoredbyNationalNaturalScienceFoundationofChina (59971 0 2 7) |
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| 摘 要： | Asbainiticsteelspossesshighhardness ,highstrength toughness ,highwearresistanceandhighhardenability ,theacademicandengineeringcircleshavepaidcloseattentiontotheinvestigationoffinemicrostructure[1,2 ] .However ,thefinemicrostruc tureofbainiticsteelsisnotdeterminedyet .Thefinemicrostructuresofmediumandmedium highcarbonbainiticsteelswereobservedandanalyzedbyhighresolutionelectronmicroscope (HREM ) ,andthere sultsshowthatthereareretainedausteniticfilmsatdifferentlevelstructureunitboundaries .The…
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Fine Microstructure of Bainitic Ferrite in Bainitic Steel |
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| LI Feng-zhao,Ao Qing,QIN Chao,Jiang Jiang,LIU Yuxian,Meng Xiangmin,HE Lianlong. Fine Microstructure of Bainitic Ferrite in Bainitic Steel[J]. Journal of Iron and Steel Research, 2003, 10(2) |
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| Authors: | LI Feng-zhao Ao Qing QIN Chao Jiang Jiang LIU Yuxian Meng Xiangmin HE Lianlong |
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| Abstract: | The fine microstructures of medium and medium-high carbon bainitic steels were observed and analyzed by high resolution electron microscope (HREM). The investigation results show that there are retained austenitic films with different appearances and sizes in bainitic ferrite laths. The boundaries of different structure levels are separated and encircled by retained austenitic films. The fine structure units and their sizes of different structure levels in the bainitic ferrite were determined by retained austenitic films. The bainitic ferrite laths are composed of different structure level sublaths, subunits and elementary units (or so called sub-subunits). The dimensions of most sublaths, subunits and elementary units are 25-80 nm, 25-80 nm and 5.0-30 nm, respectively. |
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| Keywords: | steel bainite ferrite retained austenitic microstructure |
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