Effect of severe plastic deformation on austenitization transformation of pearlitic wire
HU Xian-jun1，ZHOU Li-chu2，WANG Lei1，FANG Feng2
1. Institute of Research of Iron and Steel of Jiangsu ProvinceShasteel，Zhangjiagang 215625，Jiangsu，China 2. School of Materials Science and Engineering，Southeast University，Nanjing 211189，Jiangsu，China
Abstract：With the help of metallographic microscope， scanning electron microscope， transmission electron microscope， X-ray diffractometer and synchronous thermal analyzer technique， the effect of cold drawing deformation on the austenitization process of pearlitic wire and its structure was investigated. After the severe plastic deformation of cold drawing process， the pearlitic turned to the fibrous form. The pearlitic lamellae were arranged along the drawing axial direction with severely reduced thickness and the intensity of ferrite <110> fiber texture reached saturation after high strain deformation. During the austenitization process， the cold drawn pearlite transformed into austenite faster than the no deformed pearlite， and the austenite grew along the cold drawing axial direction with higher density. After isothermal transformation treatment， smaller original austenite crystals and pearlite colonies could be obtained from the cold drawn pearlite wire. Furthermore， the ferrite <110> fiber texture was partly inherited to the transformed phase and the morphological feature of arrangement along the layer direction was not inherited.
胡显军，周立初，王 雷，方 峰. 剧烈塑性变形对珠光体钢丝奥氏体转变的影响[J]. 钢铁, 2016, 51(5): 62-68.
HU Xian-jun，ZHOU Li-chu，WANG Lei，FANG Feng. Effect of severe plastic deformation on austenitization transformation of pearlitic wire. Iron and Steel, 2016, 51(5): 62-68.
Valiev R Z, Islamgaliev R K, Alexandrov I V.Bulk nanostructured materials from severe plastic deformation[J].Progress in materials science, 2000, 45(2):103-189
[1]
Valiev R Z, Islamgaliev R K, Alexandrov I V.Bulk nanostructured materials from severe plastic deformation[J].Progress in materials science, 2000, 45(2):103-189
Valiev R Z, Estrin Y, Horita Z, et al.Producing bulk ultrafine-grained materials by severe plastic deformation[J].Jom, 2006, 58(4):33-39
[3]
Valiev R Z, Estrin Y, Horita Z, et al.Producing bulk ultrafine-grained materials by severe plastic deformation[J].Jom, 2006, 58(4):33-39
[4]
Li Y J, Choi P, Borchers C, et al.Atomic-scale mechanisms of deformation-induced cementite decomposition in pearlite[J].Acta Materialia, 2011, 59(10):3965-3977
[4]
Li Y J, Choi P, Borchers C, et al.Atomic-scale mechanisms of deformation-induced cementite decomposition in pearlite[J].Acta Materialia, 2011, 59(10):3965-3977
[5]
Y. J. Li, P. Choi, S. Goto, et al..Evolution of strength and microstructure during annealing of heavily cold-drawn 6.3GPa hypereutectoid pearlitic steel wire[J].Acta Materialia, 2012, 60:4005-4016
[5]
Y. J. Li, P. Choi, S. Goto, et al..Evolution of strength and microstructure during annealing of heavily cold-drawn 6.3GPa hypereutectoid pearlitic steel wire[J].Acta Materialia, 2012, 60:4005-4016
[6]
A. Shabashov, L. G. Korshunov, A. G. Mukoseev, et al..Deformation-induced phase transitions in a high-carbon steel[J].Materials Science and Engineering A, 2003, A346:196-207
[6]
A. Shabashov, L. G. Korshunov, A. G. Mukoseev, et al..Deformation-induced phase transitions in a high-carbon steel[J].Materials Science and Engineering A, 2003, A346:196-207
[7]
L. Storojeva, D. Ponge, R. Kaspar, et al.Development of microstructure and texture of medium carbon steel during heavy warm deformation[J].Acta Materialia, 2004, 52:2209-2220
[7]
L. Storojeva, D. Ponge, R. Kaspar, et al.Development of microstructure and texture of medium carbon steel during heavy warm deformation[J].Acta Materialia, 2004, 52:2209-2220
[8]
S. L. Zhang, X. J. Sun, H. Dong.Effect of deformation on the evolution of spheroidization for the ultra high carbon steel[J].Materials Science and Engineering A, 2006, A432:324-332
S. L. Zhang, X. J. Sun, H. Dong.Effect of deformation on the evolution of spheroidization for the ultra high carbon steel[J].Materials Science and Engineering A, 2006, A432:324-332
C.M Bae,WJ. Nam,C. S. Lee. Effect of interlamellar spacing on the delamination of pearlitic steel wires[J].Scripta Materialia, 1996, 35(5):641-646
[12]
C.M Bae,WJ. Nam,C. S. Lee. Effect of interlamellar spacing on the delamination of pearlitic steel wires[J].Scripta Materialia, 1996, 35(5):641-646
[13]
Zhang X, Godfrey A, Hansen N, et al.Evolution of cementite morphology in pearlitic steel wire during wet wire drawing[J].Materials characterization, 2010, 61(1):65-72
[13]
Zhang X, Godfrey A, Hansen N, et al.Evolution of cementite morphology in pearlitic steel wire during wet wire drawing[J].Materials characterization, 2010, 61(1):65-72
Fang F, Zhao Y, Zhou L, et al.Texture inheritance of cold drawn pearlite steel wires after austenitization[J].Materials Science and Engineering: A, 2014, 618:505-510
[24]
Fang F, Zhao Y, Zhou L, et al.Texture inheritance of cold drawn pearlite steel wires after austenitization[J].Materials Science and Engineering: A, 2014, 618:505-510
[25]
F. Fang, L. C. Zhou, X. J. Hu, et al..Microstructure and mechanical properties of cold-drawn pearlitic wires affect by inherited texture[J].Materials and Design, 2015, 79:60-67
[25]
F. Fang, L. C. Zhou, X. J. Hu, et al..Microstructure and mechanical properties of cold-drawn pearlitic wires affect by inherited texture[J].Materials and Design, 2015, 79:60-67
2016, Vol. 51 
