|
|
Constitutive equation for hot deformation of F45MnVS steel |
KANG Di-na1, PANG Yu-hua1, LUO Yuan1, SUN Qi1, LIN Peng-cheng1, LIU Dong2 |
1. School of Metallurgical Engineering, Xi′an University of Architecture and Technology, Xi′an 710055, Shaanxi, China; 2. School of Materials Science and Engineering, Northwestern Polytechnical University, Xi′an 710072, Shaanxi, China |
|
|
Abstract In order to establish the constitutive model of F45MnVS steel which can meet the calculation accuracy,the isothermal compression experiment of the steel was completed by Gleeble-3500 testing machine,and the rheological behavior of the metal was obtained when the deformation temperature was from 800 to 1 000 ℃,the strain rate was from 0.01-10 s-1,and the deformation was from 0 to 70%. The results show that the change of stress with strain has the characteristics of dynamic recrystallization,and the stress increases with the decrease of deformation temperature and the increase of strain rate. Based on the analysis of parameters between Arrhenius and Zener-Hollomon equation,the activation energy Q of thermal deformation was obtained,and the peak stress constitutive model was established. Based on the stress dislocation relationship and dynamic recrystallization dynamics,the mechanism constitutive model of two stages of work hardening dynamic recovery and dynamic recrystallization was established,which was used to describe the relationship between stress and strain at different deformation temperature and strain rate. The model was used to predict the stress and strain under different deformation conditions. Compared with the experimental results,the correlation coefficient was 0.997 and the agreement was high.
|
Received: 27 December 2019
|
|
|
|
[1] 陈思联,惠卫军. 节能低成本高品质非调质钢的研发[J]. 钢铁,2014,49(6):1.(CHEN Si-lian,HUI Wei-jun. Energy saving low cost high quality non-conditioning research[J]. Iron and Steel,2014,49(6):1.) [2] Mandal S,Bhaduri A K,Sarma V S. Influence of state of stress on dynamic recrystallization in a titanium-modified austenitic stainless steel[J]. Metallurgical and Materials Transactions A,2012,43(2):410. [3] 梅瑞斌,包立,杜永霞,等. Fe-6.5%Si钢高温变形过程本构方程[J]. 钢铁,2018,53(6):98. (MEI Rui-bin,BAO Li,DU Yong-xia,et al. Constitutive equations of Fe-6.5%Si steel at high deformation temperature[J]. Iron and Steel,2018,53(6):98.) [4] 陈雪娇,王华巍,赵卓,等. Al-Mg-Si合金的高温流变过程动态再结晶研究[J]. 轧钢,2019,36(4):7.(CHEN Xue-jiao,WANG Hua-wei,ZHAO Zhuo,et al. Study on dynamic recrystallization of Al-Mg-Si alloy during high temperature rheological process[J]. Steel Rolling,2019,36(4):7.) [5] 余新平,潘光永,齐永杰,等. 17Cr2Ni2Mo齿轮用钢热变形动态再结晶行为[J]. 钢铁,2019,54(11):94. (YU Xin-ping,PAN Guang-yong,QI Yong-jie,et al. Dynamic recrystallization behavior of steel for 17Cr2Ni2Mo gears[J]. Iron and Steel,2019,54(11):94.) [6] 龚志华,何禛,包汉生,等. 2Cr12NiMo1W1V超临界汽轮机叶片用耐热钢的热变形行为[J]. 钢铁,2019,54(3):63. (GONG Zhi-hua,HE Zhen,BAO Han-sheng,et al. Hot deformation behavior of 2Cr12NiMo1W1V heat resistant steel used for supercritical steam turbine blades[J]. Iron and Steel,2019,54(3):63.) [7] 刘少飞,屈银虎,王崇楼,等. 金属和合金高温变形过程本构模型的研究进展[J]. 材料导报,2018,32(13):2241.(LIU Shao-fei,QU Yin-hu,WANG Chong-lou,et al. Advances in constitutive models of metals and alloys during hot deformation[J]. Materials Review,2018,32(13):2241.) [8] LIN Y C,CHEN X M. A critical review of experimental results and constitutive descriptions for metals and alloys in hot working[J]. Materials and Design,2011,32(4):1733. [9] 邵肖静,邓小玄,崔睿,等. 汽车用高品质非调质钢YF45Mn-VS的热变形行为[J]. 特殊钢,2010,31(6):56.(SHAO Xiao-jing,DENG Xiao-xuan,CUI Rui. Behavior of thermal deformation of high quality non-quenched-tempered steel YF45MnVS for automobile[J]. Special Steel,2010,31(6):56.) [10] 邹海兆. F45MnVS钢热变形行为及组织性能研究[D]. 马鞍山:安徽工业大学,2017.(ZOU Hai-zhao. Research on Hot Deformation Behaviors,Microstructures and Properties of 45MnVS steel[D]. Ma′anshan:Anhui University of Technology,2017.) [11] CHEN F,CUI Z,CHEN S. Recrystallization of 30Cr2Ni4-MoV ultra-super-critical rotor steel during hot deformation. Part I:Dynamic recrystallization[J]. Materials Science and Engineering:A,2011,528(15):5073. [12] QUAN G Z,LI G S,CHEN T,et al. Dynamic recrystallization kinetics of 42CrMo steel during compression at different temperatures and strain rates[J]. Materials Science and Engineering:A,2011,528(13/14):4643. [13] 陈锋. 高应变率和大变形对材料微晶化改性的影响之研究[D]. 宁波:宁波大学,2007.(CHEN Feng. Study on the Influence of High Strain Rate and Large Deformation on Microcrystallization Modification of Materials[D]. Ningbo:Ningbo University,2007.) [14] HE A,XIE G,ZHANG H,et al. A comparative study on Johnson-Cook,modified Johnson-Cook and Arrhenius-type constitutive models to predict the high temperature flow stress in 20CrMo alloy steel[J]. Materials and Design,2013,52(24):677. [15] LIN Y C,CHEN M S,ZHONG G J. Prediction of 42CrMo steel flow stress at high temperature and strain rate[J]. Mechanics Research Communications,2008,35:142. [16] DONG D,CHEN F,CUI Z. A physically-based constitutive model for SA508-III steel:Modeling and experimental verification[J]. Materials Science and Engineering A,2015,634:103. [17] Poliak E I,Jonas J J. A one-parameter approach to determining the critical conditions for the initiation of dynamic recrystallization[J].Acta Materialia,1996,44(1):127. [18] Laasraoui A,Jonas J J. Recrystallization of austenite after deformation at high temperatures and strain rates—Analysis and modeling[J]. Metallurgical Transactions A,1991,22(1):151. [19] WANG L,LIU F,ZUO Q,et al. Prediction of flow stress for N08028 alloy under hot working conditions[J]. Materials and Design,2013,47(9):737. [20] Kong L X,Hodgson P D,Wang B. Development of constitutive models for metal forming with cyclic strain softening[J]. Journal of Materials Processing Technology,1999,89:44. |
[1] |
ZHANG Xin1,LI Sheng-li1,BIAN Shou-yuan1,YAN Ling2. Basic research on hot compression of EH40 ship plate steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(5): 423-428. |
[2] |
CHEN Yu-xiang1,2,LI Tao1,GONG Zhi-hua1,2,ZHAO Ji-qing2,YANG Gang2. Establishment of recrystallization kinetics equation and constitutive equation of 2Cr11Mo1VNbN steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(2): 150-158. |
[3] |
LI Yu-feng1,2,TANG Xing-chang3,PAN Ji-xiang1,2,WANG Chang-bo1,2. Dynamic recrystallization behavior of 904L stainless steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(2): 159-165. |
[4] |
LUO Yuan1,2,PANG Yu-hua1,2,SUN Qi1,2,LIU Feng1,2,WANG Hai3,LIU Dong3. Constitutive equation for thermal deformation of 07MnNiMoDR plate in rolling[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(11): 977-983. |
[5] |
SHEN Bin-bin, ZHENG Yan. AnalysisofHRB400Nbhotdeformationprocessparameters[J]. PHYSICS EXAMINATION AND TESTING, 2019, 37(4): 12-13. |
[6] |
GONG Zhi-hua1,2, HE Zhen3, BAO Han-sheng1, YANG Gang1. Hot deformation behavior of 2Cr12NiMo1W1V heat resistant steel used for supercritical steam turbine blades[J]. Iron and Steel, 2019, 54(3): 63-68. |
|
|
|
|