Acta Metall Sin  2012, Vol. 48 Issue (4): 385-392    DOI: 10.3724/SP.J.1037.2011.00697

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INFLUENCE OF COHERENT AUSTENITE TWIN BOUNDARIES ON THE VARIANT SELECTION OF BAINITIC FERRITE IN Fe-C-Mn-Si STEELS

WANG Xixia, GUO Hui, WANG Ding, BAI Yin, YANG Shanwu, HE Xinlai

School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083

WANG Xixia, GUO Hui, WANG Ding, BAI Yin, YANG Shanwu, HE Xinlai. INFLUENCE OF COHERENT AUSTENITE TWIN BOUNDARIES ON THE VARIANT SELECTION OF BAINITIC FERRITE IN Fe-C-Mn-Si STEELS. Acta Metall Sin, 2012, 48(4): 385-392.

Abstract References Related Articles Recommended Metrics Download:  PDF(1160KB)  Export:  BibTeX | EndNote (RIS)       Abstract  To develop higher performance steels the requirements of the control of the microstructure is increasingly enhanced. The crystallographic orientation characteristics in the microstructure attract more and more attention because the mechanical properties are usually determined by the grain boundary density, especially high angle grain boundary density. So far researchers have conducted comprehensive investigation of the variant selection during the phase transformation. To decrease the nucleation barrier, the new phase usually chooses a specific orientation (variant) to decrease the interfacial energy between the parent and new phases. The variant selection occurs on the grain boundaries has been well studied. The nucleation and variant selection on austenite twin boundaries, however, are seldom reported, especially in the low carbon steels in which austenite can hardly be retained to the room temperature. In this work, the variant selection of bainitic ferrite on coherent austenite twin boundaries was studied using electron back scattering diffraction (EBSD) in Fe-C-Mn-Si steels with 0.05%C or 0.4%C (mass fraction). The orientation relationship between bainitic ferrite and austenite is close to K-S relationship in both steels. It was observed that the variant pairs with the similar crystallographic orientation nucleated on both sides of austenite twin boundaries. The twin grain boundaries were erased after the bainitic ferrite variants grew up. Crystallographic analysis showed that no more than three pairs of variants could be formed on one austenite twin boundary, the habit planes of which were all parallel to the twin boundary. As a result, the bainitic ferrite variant nucleated first would grow and expand along the twin boundary. In 0.05C steel, only one pair of variants was observed on the austenite twin boundary because the first nucleated bainitic ferrite variant pair grew fast due to the low carbon content which covers the twin boundary very soon and leaves no chance for the other variant pairs to nucleate on this twin boundary. In 0.4C steel, all three pairs of variants could be formed on one twin boundary because the higher carbon content slowed down the growth of first nucleated bainitic ferrite and more variant pairs could be nucleated on the twin boundary. Key words:  Fe-C-Mn-Si steel      austenite twin      variant      selection      bainitic ferrite      K-S orientation relationship      Received:  09 November 2011      Fund:  National Natural Science Foundation of China;National Natural Science Foundation of China Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors YU Xi-Xia GUO Hui YU Zhen BO Yin YANG Shan-Wu HE Shen-Lai URL:  https://www.ams.org.cn/EN/10.3724/SP.J.1037.2011.00697     OR     https://www.ams.org.cn/EN/Y2012/V48/I4/385 [1] Guo Z, Lee C S, Morris J W.  Acta Mater, 2004; 52: 5511 [2] Kitahara H, Ueji R, Ueda M, Tsuji N, Minamino Y.  Mater Charact,2005; 54: 378 [3] Kitahara H, Ueji R, Tsuji N, Minamino Y.  Acta Mater, 2006; 54: 1279 [4] Kitahara H, Ueda M, Tsuji N, Minamino Y.  Mater Sci Forum, 2006; 512: 117 [5] Sandvik B P J.  Metall Trans, 1982; 13A: 77 [6] Furuhara T, Kawata H, Morito S, Maki T.  Mater Sci Eng, 2006; A431: 228 [7] Pancholi V, Krishnan M, Samajdar I S, Yadav V, Ballal N B. Acta Mater, 2008; 56: 2037 [8] Furuhara T, Kawata H, Morito S, Miyamoto G, Maki T.  Metall Mater Trans, 2008; 39A: 1003 [9] Furuhara T, Maki T.  Mater Sci Eng, 2001; A312: 146 [10] Babu S S, Bhadeshia H K D H.  Mater Sci Eng, 1991; A142: 209 [11] Cho J Y, Suh D W, Kang J H, Lee H C.  ISIJ Int, 2002; 42: 1321 [12] Suh D W, Kang J H, Oh K H, Lee H C.  Scr Mater, 2002; 46: 375 [13] Kim D W, Suh D W, Qin R S, Bhadeshia H K D H.  J Mater Sci,2010; 45: 4126 [14] Cui G B, Guo H, Yang S W, He X L.  Acta Metall Sin,2009; 45: 680      (崔桂彬, 郭晖, 杨善武, 贺信莱. 金属学报, 2009; 45: 680) [15] Guo H, Bai Y, Yang S W, He X L.  Mater Sci Forum,2010; 654-656: 2326 [16] Hackenber R E, Nordstrom D P, Shiflet G J.  Scr Mater,2002; 47: 357 [17] Hackenber R E, Shiflet G J.  Philos Mag, 2003; 83: 3367 [18] Hackenberg R E, Shiflet G J.  Acta Mater, 2003; 51: 2131 [19] Miyamoto G, Takayama N, Furuhara T.  Scr Mater,2009; 60: 1113 [20] Luo C P, Liu J W, Xiao X L.  Acta Metall Sin, 1998; 34: 1009      (罗承萍, 刘江文, 肖晓玲. 金属学报, 1998; 34: 1009) [21] Liu Z C, Wang H Y.  Heat Treat Technol Equip, 2009; 30(5); 1      (刘宗昌, 王海燕. 热处理技术与装备, 2009; 30(5): 1) [22] Fang H S, Bo X Z, Zheng Y K, Huang J F.  Heat Treat Met,1998; 11: 1       (方鸿生, 薄祥正, 郑燕康, 黄进峰. 金属热处理, 1998; 11: 1) [23] Yang P.  EBSD Technique and its Application. Beijing: Metallurgy Industry Press, 2007: 55      (杨 平. 电子背散射衍射技术及其应用. 北京: 冶金工业出版社, 2007: 55) [24] Lee J K, Aaronson H I.  Acta Metall, 1979; 23: 799 [25] Lee J K, Aaronson H I.  Acta Metall, 1979; 23: 809 [26] Ameyama K, Maki T, Tamura I.  J Jpn Inst Met, 1986; 50: 602 [27] Furuhara T, Takage S, Watanabe H, Maki T.  Metall Mater Trans, 1996; 27A: 1635   [1] GAO Dong, ZHOU Yu, YU Ze, SANG Baoguang. Selection of Twin Variants in Dynamic Plastic Deformation of Pure Ti at Liquid Nitrogen Temperature[J]. 金属学报, 2022, 58(9): 1141-1149. [2] ZHU Jian, ZHANG Zhihao, XIE Jianxin. Plastic Deformation Behavior and Fracture Mechanism of Rare Earth H13 Steel Based on In Situ TEM Tensile Study[J]. 金属学报, 2020, 56(12): 1592-1604. [3] LIU Yi, TU Jian, YANG Weihua, YIN Ruisen, TAN Li, HUANG Can, ZHOU Zhiming. Effect of Deformation and Annealing Treatment on Microstructure Evolution of Fe47Mn30Co10Cr10B3 Dual-Phase High-Entropy Alloy[J]. 金属学报, 2020, 56(12): 1569-1580. 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