Multi-field Coupling Simulation and Experiment of Laser Cladding under Thermal Dependent Physical Properties

被引：0
|
作者：
Li C. [1 ]
Yu Z. [1 ]
Gao J. [1 ]
Li Y. [2 ]
Han X. [1 ]
机构：
[1] School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan, 114051, Liaoning
[2] Northeast No.1 Electric Power Construction Co., Ltd., China Energy Engineering Group, Shenyang, 110179, Liaoning
来源：
Binggong Xuebao/Acta Armamentarii | 2019年 / 40卷 / 06期
关键词：
Disk laser; Laser cladding; Multi field coupling; Thermal dependent physical properties;
D O I：
10.3969/j.issn.1000-1093.2019.06.017
中图分类号：
学科分类号：
摘要：
The thermal-elastic-plastic-flow multi-field coupling changes exist in laser cladding, which affects convection, heat, mass transfer, and solidification process. The mechanism of multi-field coupling evolution is hard to be dynamically tracked and revealed because of the small volume of molten pool, large temperature gradient and very strong instantaneous characteristics. A multi-field coupled 3D mathematical model of disk laser in the process of cladding Fe60 powder on 45 steel was established.The interaction between the powder flow and the laser energy beam, the influences of surface tension and buoyancy on the fluid flow in the melt pool, and the instantaneous change of cladding layer shape are taken into account in the proposed model. The thermal dependent physical properties of substrate and powder were obtained by using the CALPHAD phase diagram calculation method. The model was solved to obtain the distribution state and evolution law of temperature field and velocity field in the process of laser cladding. The results show that the laser cladding morphology and solidification microstructure predicted by simulation agree well with the metallographic results obtained by using Zeiss-IGMA HD field emission scanning electron microscope. © 2019, Editorial Board of Acta Armamentarii. All right reserved.
引用
收藏
页码：1258 / 1270
页数：12
相关论文
共 19 条
  • [1] Gnanamuthu D.S., High temperature coatings by surface melting
  • [2] Mazumder J., Steen W.M., Heat transfer model CW laser material processing, Applied Physics, 51, 2, pp. 941-947, (1980)
  • [3] Brucker F., Lepski D., Beyer E., Modeling the influence of process parameters and additional heat sources on residual stresses in laser cladding, Journal of Thermal Spray Technology, 16, 3, pp. 355-373, (2007)
  • [4] Kou S., Sun D.K., Fluid flow and weld penetration in stationary arc welds, Metallurgical Transactions A, 16, 2, pp. 203-213, (1985)
  • [5] Foroozmehr E., Kovacevic R., Effect of path planning on the laser powder deposition process: thermal and structural evaluation, International Journal of Advanced Manufacturing Technology, 51, 5-8, pp. 659-669, (2010)
  • [6] Farahmand P., Kovacevic R., An experimental-numerical investigation of heat distribution and stress field in single-and multi-track laser cladding by a high-power direct diode laser, Optics and Laser Technology, 63, 11, pp. 154-168, (2014)
  • [7] Gao W.Y., Zhao S.S., Wang Y.B., Et al., Numerical simulation of thermal field and Fe-based coating doped Ti, International Journal of Heat & Mass Transfer, 92, 1, pp. 83-90, (2016)
  • [8] Picasso M., Hoadley A.F.A., Finite element simulation of laser surface treatments including convection in the melt pool, International Journal of Numerical Methods for Heat & Fluid Flow, 4, 1, pp. 61-83, (1994)
  • [9] Toyserkani E., Khajepour A., Corbin S., Three-dimensional finite element modeling of laser cladding by powder injection: effects of powder feedrate and travel speed on the process, Journal of Laser Applications, 15, 3, (2003)
  • [10] Gan Z.T., Yu G., He X.L., Et al., Numerical simulation of thermal behavior and multicomponent mass transfer in direct laser deposition of Co-base alloy on steel, International Journal of Heat and Mass Transfer, 104, pp. 28-38, (2017)
12