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材料工程  2013 

基于微观结构的WC-Co硬质合金硬度预报模型

DOI: 10.3969/j.issn.1001-4381.2013.09.005

Keywords: WC-Co硬质合金,微观结构,硬度,显微压痕实验,有限元仿真

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Abstract:

采用"随机法"构建了考虑WC-Co硬质合金的Co相体积分数、晶粒平均粒径分布、晶粒形心分布以及晶粒取向角分布的微观结构模型,结合显微压痕实验的有限元模拟,提出一种基于材料微观结构的硬度预报模型。结果表明"随机法"构建的微观结构模型较好地反映了材料的真实细观结构特征;材料的硬度受微观结构的影响较大,其中以Co相体积分数和晶粒平均粒径分布最为显著。模拟结果与实验结果吻合较好,从而证明了提出的模型能够准确地预报WC-Co硬质合金的硬度。

References

[1]  任淮辉, 李旭东. 二维材料微结构设计与数值模拟软件系统[J]. 计算机辅助设计与图形学学报, 2009, 21(6):861-868.REN Huai-hui, LI Xu-dong. A design and numerical simulation system of 2D material microstructures[J]. Journal of Computer Aided Design & Computer Graphics, 2009, 21(6):861-868.
[2]  刘玉佳, 燕瑛, 苏玲. 双随机分布细观分析模型与复合材料性能预报[J]. 复合材料学报, 2011, 28(2):206-210. LIU Yu-jia, YAN Ying, SU Ling. Double-random distribution model and properties prediction of composites[J]. Acta Materiae Compositae Sinica, 2011, 28(2):206-210.
[3]  杨晓东, 贺鹏飞, 吴艾辉, 等. 石墨烯纳米压痕实验的分子动力学模拟[J]. 中国科学:物理学 力学 天文学, 2010, 40(3):353-360.YANG Xiao-dong, HE Peng-fei, WU Ai-hui, et al. Molecular dynamics simulation of nanoindentation for graphene[J]. Scientia Sinica Phys, Mech & Astron, 2010, 40(3):353-360.
[4]  SADOWSKI T, NOWICKI T. Numerical investigation of local mechanical properties of WC/Co composite[J]. Computational Materials Science, 2008, 43(1):235-241.
[5]  TVERGAARD V, LEMAN A. Polymer indentation: numerical analysis and comparison with a spherical cavity model[J]. Journal of the Mechanics and Physics of Solids, 2011, 59(9): 1669-1684.
[6]  卜肖冰, 李落星, 张立强, 等. Al-Cu合金凝固微观结构组织的三维模拟及优化[J]. 中国有色金属学报, 2011, 21(9):2195-2201.BU Xiao-bing, LI Luo-xing, ZHANG Li-qiang, et al. Three-dimensional numerical simulation and optimization of solidification structure of Al-Cu alloy[J]. The Chinese Journal of Nonferrous Metals, 2011, 21(9):2195-2201.
[7]  BERTOLINO G, BILGER N, CREPIN J. Modeling microstructures and microstructural effects on macroscopic and intragranular mechanical behavior[J]. Computational Materials Science, 2007, 40(3):408-416.
[8]  LEE H C, GURLAND J. Hardness and deformation of cemented tungsten carbide[J]. Materials Science and Engineering, 1978, 33(1): 125-133.
[9]  XU Z H, AGREN J. A modified hardness model for WC-Co cemented carbides[J]. Materials Science and Engineering: A, 2004, 386(1-2): 262-268.
[10]  ROEBUCK B. Extrapolating hardness-structure property maps in WC/Co hardmetals[J]. International Journal of Refractory Metals & Hard Materials, 2006, 24(1-2):101-108.
[11]  FERREIRA J A M, PINA AMARAL M A, ANTUNES F V, et al. A study on the mechanical behavior of WC/Co hardmetals[J]. International Journal of Refractory Metals & Hard Materials, 2009, 27(1):1-8.
[12]  RONALD W A. The hardness and strength properties of WC-Co composites[J]. Materials, 2011, 4(7):1287-1308.
[13]  DOERNER M F, NIX W D. A method for interpreting the data from depth-sensing indentation instruments[J]. Journal of Materials Research, 1986, 1(4):601-609.
[14]  OLIVER W C, PHARR G M. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments[J]. Journal of Materials Research, 1992, 7(6):1564-1583.
[15]  PRAMANIK A, ARSECULARATNE J A, ZHANG L C. Micro-indentation of metal matrix composites: a 3D finite element analysis[A]. 5th Australasian Congress on Applied Mechanics(ACM2007)[C]. Brisbane: Engineers Australia, 2007. 246-251.
[16]  CULHA O, TOPARLI M, AKSOY T, et al. Calculation of the mechanical properties of FeB layer’s by finite element method[J]. Mathematical and Computation Applications, 2011, 16(1):113-124.
[17]  RAMESH KUMAR M V, NARASIMHAN R. Analysis of spherical indentation of linear viscoelastic materials[J]. Current Science, 2004, 87(8):1088-1095.
[18]  SILVA DIAS A M, MODENESI P J, GODOY G C. Computer simulation of stress distribution during Vickers hardness testing of WC-6Co[J]. Materials Research, 2006, 9(1):73-76.
[19]  CHA S I, LEE K H, RYU H J, et al. Analytical modeling to calculate the hardness of ultra-fine WC-Co cemented carbides[J]. Materials Science and Engineering: A, 2008, 489(1-2):234-244.
[20]  SHARMA K, BHASIN V, GHOSH A K. Property estimation with automated ball indentation using artificial neural network and finite element simulation[J]. Jordan Journal of Mechanical and Industrial Engineering, 2010, 4(4):503-506.

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