Investigation on microstructure evolution of medium carbon steel during warm deformation
LI Hong-bin 1， 2，YU En-lin1
1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling， Yanshan University， Qinhuangdao 066004， Hebei， China 2. School of Metallurgical and Energy， North China University of Science and Technology， Tangshan 063009， Hebei， China.
Abstract：The warm compression test for medium carbon steel was carried out on Gleeble-3500 thermal-simulation machine. The effects of deformation temperature (550， 600， 650， 700 ℃) and strain rate (0.001， 0.01， 0.1， 1， 10 s－1) on the microstructure evolution were studied. The processing map was established to explore the best parameter combination to generate the evenly distributed and fine cementite particles on the ferrite matrix. The results show that during the warm deformation， dynamic spheroidization of lamellar cementite and ferrite dynamic recrystallization occurred， and the flow stress was influenced by the evolution of microstructure. According to the processing map， the best processing parameter that the temperature range of 630-700 ℃ and the strain of 0.30-10 and 0.001-0.007 s－1 could be obtained. The composite microstructure with ultrafine ferrite grains and uniform distribution of cementite particle was obtained.
收稿日期: 2016-04-05
出版日期: 2016-08-29
引用本文:
李红斌， ，于恩林. 中碳钢温变形微观组织演变[J]. 钢铁, 2016, 51(9): 63-69.
LI Hong-bin ， ，YU En-lin. Investigation on microstructure evolution of medium carbon steel during warm deformation. Iron and Steel, 2016, 51(9): 63-69.
Z.Q.Lv, B.Wang, Z.H.Wang, etc. Effect of Cyclic Treatments on Spheroidizing Behavior of Cementite in High Carbon Steel[J]. Mater. Sci. Eng. A, 2013,574:143-148.
[2]
Z.Q.Lv, B.Wang, Z.H.Wang, etc. Effect of Cyclic Treatments on Spheroidizing Behavior of Cementite in High Carbon Steel[J]. Mater. Sci. Eng. A, 2013,574:143-148.
[3]
吴涛. 淬火碳钢温变形流变行为与微观组织演变研究[D]，燕山大学，2013.12.
[3]
吴涛. 淬火碳钢温变形流变行为与微观组织演变研究[D]，燕山大学，2013.12.
[4]
Q.Li,T.S.Wang, T.F.Jing, et al. Warm deformation behavior of quenched medium carbon steel and its effect on microstructure and mechanical property[J]. Mater. Sci. Eng. A, 515(2009)38-42.
[4]
Q.Li,T.S.Wang, T.F.Jing, et al. Warm deformation behavior of quenched medium carbon steel and its effect on microstructure and mechanical property[J]. Mater. Sci. Eng. A, 515(2009)38-42.
Ozturk F, Toros S and Kilic S. Tensile and Spring-Back Behavior of DP600 Advanced High Strength Steel at Warm Temperatures[J]. J. Iron. Steel Res. Int. 2009. 16(6): 41-46
[9]
Ozturk F, Toros S and Kilic S. Tensile and Spring-Back Behavior of DP600 Advanced High Strength Steel at Warm Temperatures[J]. J. Iron. Steel Res. Int. 2009. 16(6): 41-46
H. Rastegaria, A. Kermanpur, A. Najafizadeh,et al. Warm deformation processing maps for the plain eutectoid steels[J]. J. Alloy. Compd, 626,(2015): 136-144.
[12]
H. Rastegaria, A. Kermanpur, A. Najafizadeh,et al. Warm deformation processing maps for the plain eutectoid steels[J]. J. Alloy. Compd, 626,(2015): 136-144.
[13]
D.L. Bly;O.D. Sherby;C.M. Young， et al. Influence of thermal mechanical treatments on the mechanical properties of a finely spheroidized eutectoid-composition steel[J]. Mater. Sci. Eng. A, 1973, 12(1): 41-46.
[13]
D.L. Bly;O.D. Sherby;C.M. Young， et al. Influence of thermal mechanical treatments on the mechanical properties of a finely spheroidized eutectoid-composition steel[J]. Mater. Sci. Eng. A, 1973, 12(1): 41-46.
[14]
Storojeva L, Ponge D, Kaspar R, et al. Development of micrustructure and texture of medium carbon steel during heavy warm deformation[J]. Acta Mater, 2004,52:2209-2220.
[14]
Storojeva L, Ponge D, Kaspar R, et al. Development of micrustructure and texture of medium carbon steel during heavy warm deformation[J]. Acta Mater, 2004,52:2209-2220.
2016, Vol. 51 
