宋月鹏,陈苗苗,徐保岩,高东升,郭晶,许令峰,Kim Hyoung-Seop

• 1:山东农业大学机械与电子工程学院
• 2:山东农业大学园艺科学与工程学院
• 3:韩国浦项工科大学

摘要(Abstract)：

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,形变程度很大,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。

关键词(KeyWords)： 高压扭转;压缩阶段;IF钢;不均匀变形;有限元分析

Abstract:

Keywords:

基金项目(Foundation): 山东省现代农业产业技术体系果品产业创新团队资金(SDAIT-06-12);; 山东省科技发展计划项目(2014GGX102012);; 国际热核聚变实验堆(ITER)计划专项(2013GB110005)

作者(Author): 宋月鹏,陈苗苗,徐保岩,高东升,郭晶,许令峰,Kim Hyoung-Seop

DOI: 10.13289/j.issn.1009-6264.2017.02.017

参考文献(References)：

• [1]Zhilyaev A P,Langdon T G.Using high-pressure torsion for metal processing:Fundamentals and applications[J].Progress in Materials Science,2008,53(6):893-979.
• [2]Zhilyaev A P,Mc Nelley T R,Langdon T G.Evolution of microstructure and microtexture in fcc 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.20Cr Mn Ti高压扭转有限元模拟及实验[J].热加工工艺,2010,39(20):12-15.WEI Xing,LIU Wei,XU Feng,et al.FEM and experiment on pie-shaped 20Cr Mn Ti by high-pressure torsion[J].Hot Working Technology,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,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.
• [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):29-34.LI Wen-bin,GUAN Jun.Research and development situation of IF steel[J].Metallurgical Equipment,2005,(3):29-34.
• [11]Mat Web,LLC.Online materials information resource-Mat Web[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,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.
• [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 MaterialsⅠ[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+23.LI 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.LI Hua,YAN Jie,LIN Jun-yi.FEM simulation and analysis of thermal differential dieless forging process for forming simple shaft_disc 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+51.ZHANG Bao-hong,ZHANG Xing,WANG Qiang,et al.Influence of plastic deformation on microstructure and mechanical properties of as-cast AZ31magnesium alloy[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,et al.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.

文章评论(Comment)：