高压扭转IF钢压缩阶段的不均匀变形及其计算机模拟仿真
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- 英文论文题名：Heterogeneous plastic deformation and simulation for HPT IF steel disks in the compression stage
- 论文作者：宋月鹏 ; 陈苗苗 ; 徐保岩 ; 高东升 ; 郭晶 ; 许令峰 ; Kim Hyoungseop
- 英文论文作者：SONG Yue-peng ; CHEN Miao-miao ; XU Bao-yan ; GAO Dong-sheng ; GUO Jing ; XU Ling-feng ; KIM Hyoung-seop ; Shandong Agricultural University ; Mechanical and Electronic Engineering College ; Shandong Agricultural University ; Shandong Provincial Key Laboratory of Horticultural Machineries and Equipments ; Pohang University of Science and Technology ; Department of Materials Science and Engineering
- 年：2016
- 作者机构：山东农业大学机械与电子工程学院;山东农业大学园艺科学与工程学院;韩国浦项工科大学;
- 论文关键词：高压扭转 ; 压缩阶段 ; IF钢 ; 不均匀变形 ; 有限元分析
- 英文论文关键词：high pressure torsion ; compression stage ; IF steel ; heterogeneous deformation ; finite element analysis
- 会议召开时间：2016-08-16
- 会议录名称：第十届全国材料科学与图像科技学术会议暨校地企产学研合作创新论坛论文摘要集
- 语种：中文
- 分类号：TG142.1
- 学会代码：EGTA
- 会议名称：第十届全国材料科学与图像科技学术会议暨校地企产学研合作创新论坛
- 会议地点：中国河南洛阳
- 主办单位：中国体视学学会材料科学分会、中国金属学会材料科学分会
- 学会名称：中国体视学学会
- 页数：7
- 文件大小：3470k
- 原文格式：O
- 会议级别：全国
摘要
观察并研究了IF钢高压扭转压缩阶段过程中的硬度及显微组织不均匀分布特征,并利用ANSYS有限元分析软件对实验结果进行模拟仿真验证。结果表明IF钢在高压扭转压缩阶段过程中的应力、应变及硬度分布是不均匀的:心部变形程度较小,硬度比较低;中间区域变形比较均匀,硬度也趋于一致;在边缘区域,应变形程度很大,从而硬度比较高;对于限定型高压扭转,由于模具凹槽立壁对试样变形的阻滞作用,变形量较小从而形成形变"死区"。模拟结果与硬度及显微组织分布的实验结果极为吻合,由此说明,正是由于压缩阶段试样各部位不均匀变形导致了显微组织、硬度的不均匀分布。
Inhomogeneous distributions of hardness and microstructure of IF steel disks in the compression stage of high pressure torsion were observed and studied.And the experimental results were verified using simulation approach by ANSYS code.The results indicate that the stress,strain and hardness distributions of IF steel are inhomogeneous in the compression stage of HPT,exhibiting lower hardness and smaller degree of deformation in center,homogeneous deformation with almost the same hardness in radial medium,higher hardness and bigger degree of deformation in edge.However,according to the constrained HPT,retardation effect on the deformation process of disks by the cavity on HPT anvils.The dead metal zone(DMZ) in the HPT process was verified because of small amount of deformation.The experimental results of the hardness and micstructure are strongly supported by the simulation results,it is indicated that the distributions of hardness and microstructure are inhomogeneous due to the heterogeneous deformation of IF steel in the compression stage of high pressure torsion.
Inhomogeneous distributions of hardness and microstructure of IF steel disks in the compression stage of high pressure torsion were observed and studied.And the experimental results were verified using simulation approach by ANSYS code.The results indicate that the stress,strain and hardness distributions of IF steel are inhomogeneous in the compression stage of HPT,exhibiting lower hardness and smaller degree of deformation in center,homogeneous deformation with almost the same hardness in radial medium,higher hardness and bigger degree of deformation in edge.However,according to the constrained HPT,retardation effect on the deformation process of disks by the cavity on HPT anvils.The dead metal zone(DMZ) in the HPT process was verified because of small amount of deformation.The experimental results of the hardness and micstructure are strongly supported by the simulation results,it is indicated that the distributions of hardness and microstructure are inhomogeneous due to the heterogeneous deformation of IF steel in the compression stage of high pressure torsion.
引文
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[23]Wang W K,Song Y P,Gao D Sh,et al.Experimental and Finite Element Analyses of Plastic Deformation in the Compressive Stage of Copper in HighPressure Torsion[J].Rare Metal Materials and Engineering,2013,42(S2):301-304.
[2]Zhilyaev A P,McNelley T R,Langdon T G.Evolution of microstructure and microtexture in fee metals during high-pressure torsion[J].Journal of Materials Science,2007,42(5):1517-1528.
[3]Xu Ch,Horita Z J,Langdon T G.The evolution of homogeneity in an aluminum alloy processed using high-pressure torsion[J].Acta Materialia,2008,56(18):5168-5176.
[4]Zhilyaev A P,Oh-ishi K,Langdon T G,et al.Microstructural evolution in commercial purity aluminum during high-pressure torsion[J].Materials Science and Engineering A,2005,s410-411(12):277-280.
[5]魏兴,刘为,许峰,等.20CrMnTi高压扭转有限元模拟及实验[J].材料热处理技术,2010,39(20):12-15WEI Xing,LIU Wei,XU Feng,et al.FEM and Experiment on Pie-shaped 20CrMnTi by High-pressure Torsion[J].Material&Heat Treatment,2010,39(20):12-15.
[6]Zhang J W,Gao N,Starinka M J.Al-Mg-Cu based alloys and pure Al processed by high pressure torsion:The influence of alloying additions on strengthening[J].Materials Science and Engineering:A,2010,527(15):3472-3479.
[7]Song Y P,Wang W K,Gao D S,et al.Hardness and microstructure of interstitial free steels in the early stage of high-pressure torsion[J].Journal of materials science,2013,48(13):4698-4705.
[8]Song Y P,Wang W K,Lee D J,et al.Thickness Inhomogeneity in Hardness and Microstructure of Copper after the Compressive Stage in High-Pressure Torsion[J].Metal Mater Inter,2015,21(1):7-13.
[9]Figueiredo R B,Aguilar M T,Langdon T G,et al.Deformation Heterogeneity on the Cross-Sectional Planes of a Magnesium Alloy Processed by HighPressure Torsion[J].Metallurgical and Materials Transactions A,2011,42(10):3013-3021.
[10]李文彬,官军深冲钢(IF钢)的研究与发展概况[J]冶金设备,2005,(3):29-34LI Wen-bin,GUAN Jun.Research and Development Situation of IF Steel[J].Metallurgical Equipment,2005,(3):29-34.
[11]MatWeb,LLC.Online Materials Information Resource-MatWeb[DB/OL].http://www.matweb.com,2016-07-01.
[12]Lee D J,Yoon E Y,Park L J,et al.The dead metal zone in high-pressure torsion[J].Scripta Materiallia,2012,67(4):384-387.
[13]Song.Y P,Wang W K,Gao D Sh,et al.Inhomogeneous Hardness Distribution of High Pressure Torsion Processed IF Steel Disks[J].Materials Science and Applications,2012,(3):234-239.
[14]刘鸿文,林建兴,曹曼玲,等.材料力学Ⅰ[M].北京:高等教育出版社,2011.LIU Hong-wen,LIN Jian-xing,CAO Man-ling,et al.Mechanical of Materials I[M].Beijing:High Education Press,2011.
[15]李卫旗,马庆贤.摩擦行为在锻造过程中的研究现状与进展[J].锻压技术,2014,39(6):9-19+23LI Wei-qi,MA Qing-xian.Developments and prospects of friction behavior during forging process[J].Forging&Stamping Technology,2014,39(6):9-19+23.
[16]刘华,闫洁,林俊义简单轴盘类零件的差温无模锻造模拟分析[J].模具工业,2005,(8):3-6.FEM Simulation and Analysis of Thermal Differential Dieless Forging Process for Forming Simple ShaftDisc Type Components[J].Die&Mould Industry,2005,(8):3-6.
[17]Yoon S C,Nagasekhar A V,Kim H S.Finite Element Analysis of the Bending Behavior of a Workpiece in Equal Channel Angular Pressing[J].Metal Mater Inter,2009,15(2):215-219.
[18]Ivanisenko Y,Lojkowski W,Valiev R Z,et al.The mechanism of formation of nanostructure and dissolution of cementite in a pearlitic steel during high pressure torsion[J].Acta Materialia,2003,51(18):5555-5570.
[19]张宝红,张星,王强,等塑性变形对铸态AZ31镁合金组织和性能的影响[J].材料工程,2005,(5):45-47+51ZHANG Bao-hong,ZHANG Xing,WANG Qiang,et al.Influence of Plastic Deformation on Microstructure and Mechanical Properties of As-cast AZ31Magnesium AIloy[J].Journal of Materials Engineering,2005,(5):45-47+51
[20]Del G D.Connection between hardness and stresses in the plastic region[J].Soviet Physics Journal,1966,9(3):92-94.
[21]Lauro P,Kang S K,Choi W K,DY Shih Effects of mechanical deformation and annealing on the microstructure and hardness of Pb-free solders[J].Journal of Electronic Materials,2003,32(12):1432-1440.
[22]Mahallawy N E,Shehata F A,Hameed M A E,et al.3D FEM simulations for the homogeneity of plastic deformation in Al-Cu alloys during ECAP[J].Materials Science and Engineering A,2010,527(6):1404-1410.
[23]Wang W K,Song Y P,Gao D Sh,et al.Experimental and Finite Element Analyses of Plastic Deformation in the Compressive Stage of Copper in HighPressure Torsion[J].Rare Metal Materials and Engineering,2013,42(S2):301-304.
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