Acta Metall Sin  1997, Vol. 33 Issue (7): 697-701    DOI:

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TEM OBSERVATION OF MICROSTRUCTURES AND FINE STRUCTURES DURING BAINITIC NUCLEATION IN THE STEEL 8Mn8SiMo

WU Xiaolei;CHEN Guangnan (Institute of Mechanics; Chinese Academy of Sciences; Beijing 100080); MA Chaoli;KANG Mokuang (Northwestern Polytechntical University; Xi'an 710072)

WU Xiaolei;CHEN Guangnan (Institute of Mechanics; Chinese Academy of Sciences; Beijing 100080); MA Chaoli;KANG Mokuang (Northwestern Polytechntical University; Xi'an 710072). TEM OBSERVATION OF MICROSTRUCTURES AND FINE STRUCTURES DURING BAINITIC NUCLEATION IN THE STEEL 8Mn8SiMo. Acta Metall Sin, 1997, 33(7): 697-701.

Abstract References Related Articles Recommended Metrics Download:  PDF(2166KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The microstructure and substructure of the bainitic-ferrite at the most early stage of growth in an Fe-0.79C-8.3Mn-0.87St-0.50Mo steel are studied by TEM. It is observed that the bainite nuclei exhibit a thin plate morphology. And, the bainite formation has the character of catalysis nucleation by sub-units. Moreover, the existence of (lll)f defect plane is firstly observed, and its formation is considered to be the result of the plastic accommodation effect occurred in parent austenite during bainitic nucleation and growth. Defect planes, in fact, to be the glide plane of austenite matrix, consist of part of the bainitic-ferrite/austenite interface. Thus, the formation of bainitic-ferrite is of shear nature. Key words:  bainite      nucleation      (lll)      defect plane      shear      Received:  18 July 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/I7/697 1Aaronson HI, Wells C. Trans AIME, 1956; 206: 1216 2Spanos G, Fang H S, Aaronson HI. Metall Trans, 1990; 21A: 1381 3Hehemann R F. Phase Transbrmation. Metals Park, Ohio: ASM, 1970: 397 4Bhadeshia H K D H, Christian J W. Metall Trans, 1990; 21A: 767 5 Wu X L, Zhang X Y, Kang M K. Mater Trans JIM, 1994; 30: 782 6 Bhadeshia H K D H Bainite in Steels.London:The Institute of Materials,1992:135 7俞德刚,朱钰如,陈大军,唐晓宏,张惠娟.金属学报,1994;30:A385 8孟祥康,康沫狂.金属学报,1993;29:A359 9冯华,康沫狂,李春信.材料科学进展,1988;2(3):32 10Olson G B, Cohen M.Metall Trans,1976; 7A: 1879 11康沫狂,杨延清,张喜燕,孙加林,贾虎生,武晓雷金属学报, 1996; 32: A897 12Sandvik B P J, Wayman C M. Metall Trans, 1983; 14A: 2455 13黄孝瑛.透射电子显微学.上海:上海科学技术出版社,1986:282 [1] 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. [2] WU Caihong, FENG Di, ZANG Qianhao, FAN Shichun, ZHANG Hao, LEE Yunsoo. Microstructure Evolution and Recrystallization Behavior During Hot Deformation of Spray Formed AlSiCuMg Alloy[J]. 金属学报, 2022, 58(7): 932-942. [3] LI Xifeng, LI Tianle, AN Dayong, WU Huiping, CHEN Jieshi, CHEN Jun. Research Progress of Titanium Alloys and Their Diffusion Bonding Fatigue Characteristics[J]. 金属学报, 2022, 58(4): 473-485. [4] ZHU Bin, YANG Lan, LIU Yong, ZHANG Yisheng. Micromechanical Properties of Duplex Microstructure of Martensite/Bainite in Hot Stamping via the Reverse Algorithms in Instrumented Sharp Indentation[J]. 金属学报, 2022, 58(2): 155-164. [5] ZHU Dongming, HE Jiangli, SHI Genhao, WANG Qingfeng. Effect of Welding Heat Input on Microstructure and Impact Toughness of the Simulated CGHAZ in Q500qE Steel[J]. 金属学报, 2022, 58(12): 1581-1588. [6] JIANG Weining, WU Xiaolong, YANG Ping, GU Xinfu, XIE Qingge. Formation of Dynamic Recrystallization Zone and Characteristics of Shear Texture in Surface Layer of Hot-Rolled Silicon Steel[J]. 金属学报, 2022, 58(12): 1545-1556. [7] CHEN Wei, ZHANG Huan, MU Juan, ZHU Zhengwang, ZHANG Haifeng, WANG Yandong. Effects of Microstructure and Strain Rate on Dynamic Mechanical Properties and Adiabatic Shear Band of TC4 Alloy[J]. 金属学报, 2022, 58(10): 1271-1280. [8] JIANG Zhonghua, DU Junyi, WANG Pei, ZHENG Jianneng, LI Dianzhong, LI Yiyi. Mechanism of Improving the Impact Toughness of SA508-3 Steel Used for Nuclear Power by Pre-Transformation of M-A Islands[J]. 金属学报, 2021, 57(7): 891-902. [9] GUAN Pengfei, SUN Shengjun. Atomic-Level Study in the Structure and Its Instability of Metallic Glasses[J]. 金属学报, 2021, 57(4): 501-514. [10] JIANG Minqiang, GAO Yang. Structural Rejuvenation of Metallic Glasses and Its Effect on Mechanical Behaviors[J]. 金属学报, 2021, 57(4): 425-438. [11] QU Ruitao, WANG Xiaodi, WU Shaojie, ZHANG Zhefeng. Research Progress in Shear Banding Deformation and Fracture Mechanisms of Metallic Glasses[J]. 金属学报, 2021, 57(4): 453-472. [12] ZHANG Nizhen, MA Xindi, GENG Chuan, MU Yongkun, SUN Kang, JIA Yandong, HUANG Bo, WANG Gang. Effect of Adding Ag on the Nanoindentation Behavior of Cu-Zr-Al-Based Metallic Glass[J]. 金属学报, 2021, 57(4): 567-574. [13] XIAO Hong,XU Pengpeng,QI Zichen,WU Zonghe,ZHAO Yunpeng. Preparation of Steel/Aluminum Laminated Composites by Differential Temperature Rolling with Induction Heating[J]. 金属学报, 2020, 56(2): 231-239. [14] Jialin ZHU,Shifeng LIU,Yu CAO,Yahui LIU,Chao DENG,Qing LIU. Effect of Cross Rolling Cycle on the Deformed and Recrystallized Gradient in High-Purity Tantalum Plate[J]. 金属学报, 2019, 55(8): 1019-1033. [15] Juan DU, Xiaoxing CHENG, Tiannan YANG, Longqing CHEN, Frédéric Mompiou, Wenzheng ZHANG. In Situ TEM Study on the Sympathetic Nucleation of Austenite Precipitates[J]. 金属学报, 2019, 55(4): 511-520. No Suggested Reading articles found! Viewed Full text Abstract Cited   Shared      Discussed