Acta Metall Sin  1992, Vol. 28 Issue (12): 1-8    DOI:

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INFLUENCE OF Si AND Mn ON MORPHOLOGY OF BAINITIC FERRITE AND KINETICS OF BAINITE TRANSFORMATION IN Fe-C ALLOY

LIU Shikai; YANG Liu; ZHANG Jun; ZHU Degui (Southwest Jiaotong University; Chengdu)

LIU Shikai; YANG Liu; ZHANG Jun; ZHU Degui (Southwest Jiaotong University; Chengdu). INFLUENCE OF Si AND Mn ON MORPHOLOGY OF BAINITIC FERRITE AND KINETICS OF BAINITE TRANSFORMATION IN Fe-C ALLOY. Acta Metall Sin, 1992, 28(12): 1-8.

Abstract References Related Articles Recommended Metrics Download:  PDF(1638KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Morphologies and microsubstructures of bainitic ferrite, α_b, in 6 alloys of Fe-C-Si, Fe-C-Mn and Fe-C-Si-Mn systems have been examined using optical and transmission electron microscope. The difference of morphology between alloys was found to attribute to the solute drag-like effect. The relative incubation time, τ, of bainite transformation in different alloys was estimated by the calculated volume free energy change, △G_v. Comparing with the τ measured on the TTT-curves, it is found that the difference between the calculated and measured values are large enough in Fe-C-Mn and Fe-C-Si-Mn alloys. It means that the △G_v is not the main factor to determine the values of τ of these alloys. The segregation of Mn at prior austenite, γ, grain boundaries was detected by STEM+EDS and second ion mass spectroscopy (SIMS). Thus, nucleation of α_b at prior γ grain boundaries is therefore retarted and the fraction of intergranular ferrite increases with Mn content. The complex effect of Si and Mn is thought to be the effect of Si enhancing the segregation of Mn to γ grain boundaries. Key words:  bainite      Fe-C-Si-Mn      phase transformation      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/Y1992/V28/I12/1 1 Bhadeshia H K D H, Edmonds D V. Metall Trans, 1979; 10A:895 2 Liu S K, Reynolds W T Jr., Hu H, Shiflet G J, Aaronson H I. Metall Trans, 1985; 16A:457 3 Aaronson H h Liu S K, Reynolds W T Jr., Shiflet G I. J Mater Sci, 1985; 20:4232 4 Reynolds W T Jr., Liu S K, Li F Z, Hartfield S, Aaronson H I. Metall Trans, 1990; 21A:1479 5 Reynolds W T Jr., Li F Z, Shui C K, Aaronson H I. Metall Trans, 1990; 21A:1433 6 杨萍,杨柳,刘世楷.第2届全国贝氏体相变讨论会论文集,1990;10:26 7 Sharma R C, Purdy G R. Metall Trans, 1973; 14A:2303 8 Lee D Y,Marcus H L 见:中国金属学会编译组译,物理冶金进展评论,北京:冶金工业出版社, 1985;457 9 Balluffi R W. In: JohnSon W C, Blakely J M eds., Insterfacial Segregation. Metal Park, Ohio: ASM, 1979:193 10 Enomoto M, White C L, Aaronson H I. Metall Trans, 1988; 19A:1807 11 Guttmann M, McLean D. In: Johnson W C, Blakely J M eds., Interfacial Segregation. Metal Park, Ohio: ASM, 1979:261' [1] BAI Jiaming, LIU Jiantao, JIA Jian, ZHANG Yiwen. Creep Properties and Solute Atomic Segregation of High-W and High-Ta Type Powder Metallurgy Superalloy[J]. 金属学报, 2023, 59(9): 1230-1242. [2] FENG Aihan, CHEN Qiang, WANG Jian, WANG Hao, QU Shoujiang, CHEN Daolun. Thermal Stability of Microstructures in Low-Density Ti2AlNb-Based Alloy Hot Rolled Plate[J]. 金属学报, 2023, 59(6): 777-786. [3] ZHAO Yafeng, LIU Sujie, CHEN Yun, MA Hui, MA Guangcai, GUO Yi. Critical Inclusion Size and Void Growth in Dual-Phase Ferrite-Bainite Steel During Ductile Fracture[J]. 金属学报, 2023, 59(5): 611-622. 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