Acta Metall Sin  1997, Vol. 33 Issue (3): 241-247    DOI:

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TEM OBSERVATION OF THE FINE STRUCTURE OF BAINITE

LI Fengzhao; AO Qing; GU Yingni; JIANG Jiang; SUN Dongsheng (Shandong University of Technology; Jinan 250061)DAI Jiyan; PENG Hongying (Laboratory of Atomic Imaging of Solids; Institute of Metal Research; Chinese Academy of Sciences;Shenyang 110015)

LI Fengzhao; AO Qing; GU Yingni; JIANG Jiang; SUN Dongsheng (Shandong University of Technology; Jinan 250061)DAI Jiyan; PENG Hongying (Laboratory of Atomic Imaging of Solids; Institute of Metal Research; Chinese Academy of Sciences;Shenyang 110015). TEM OBSERVATION OF THE FINE STRUCTURE OF BAINITE. Acta Metall Sin, 1997, 33(3): 241-247.

Abstract References Related Articles Recommended Metrics Download:  PDF(3739KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Fine structure of bainite, morphology and distribution of carbide in steels and morphology of bainite in Cu-Zn-Al alloy have been investigated with TEM. Interfacial structure ledges and interfacial lattice images of Cu-Zn-Al alloy have also been observed with HREM. Addition of minor alloying elements can fine the structure of bainitic ferrite markedly. The bainitic ferrite is composed of subunits or subchunks. The carbides with different morphologies are distributed between the laths. inside the plates and at the boundaries of subunits. There are abundant fine structures in bainitic ferrite. In the primary bainite of Cu-Zn-Al alloy there are interfacial structure ledges. whose heights are within 3-40 nm.corresponding to 15-200 atomic layers. The phase reaction mechanism of bainite is discussed in this article. Key words:  bainitic ferrite      fine structure      subunit      interfacial structure ledge      Received:  18 March 1997      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1997/V33/I3/241 1Bhadeshia H K D H, Christian J W. Metall Trans.1990;21A:767 2 RCynolds W T Jr,Li F Z, Shui C K,Aaronson H I. Metall Trans,1990;21A:1443 3 Bhadeshia H K D H Bainite in Steels. London:The Institute of Materials, 1992: 348, 380 4 Bramfitt B L,Speer J G .Metall Trans,1990;21A:817 5康沫狂,杨思品,管敦惠.钢中贝氏体上海:上海科学技术出版社、1990:381 6方鸿生,郑燕康,陈秀云,黄云庆,曹建军,姜忠良中国机械工程学会第二届材料年会论文集,中国机械工程学会材料学会、1990:115 7 Oblack J M, Hehamann R F.Trans formation and Hardenability in Steels,Ann Arbor,MI:ClimaxMolybdenum Company,1967:15 8俞德刚,朱钰如,陈大军,唐晓宏、张惠娟金属学报,1994;30:A385 9王家军,方鸿生,郑燕康,严隽珏.兵器材料科学与工程,1993;16:3 10Spanos G. 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