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激光熔覆镍基合金温度场和应力场数值模拟

李美艳, 韩彬, 蔡春波, 王勇, 宋立新

李美艳, 韩彬, 蔡春波, 王勇, 宋立新. 激光熔覆镍基合金温度场和应力场数值模拟[J]. 焊接学报, 2015, 36(5): 25-28,32.
引用本文: 李美艳, 韩彬, 蔡春波, 王勇, 宋立新. 激光熔覆镍基合金温度场和应力场数值模拟[J]. 焊接学报, 2015, 36(5): 25-28,32.
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LI Meiyan, HAN Bin, CAI Chunbo, WANG Yong, SONG Lixin. Numerical simulation on temperature and stress fields of laser cladded Ni-based coating[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(5): 25-28,32.
Citation: LI Meiyan, HAN Bin, CAI Chunbo, WANG Yong, SONG Lixin. Numerical simulation on temperature and stress fields of laser cladded Ni-based coating[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(5): 25-28,32.
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激光熔覆镍基合金温度场和应力场数值模拟

  • 1.

    中国石油大学(华东)机电工程学院, 青岛 266580

  • 2.

    海洋石油工程(青岛)有限公司, 青岛 266520

基金项目: 石油天然气装备教育部重点实验室(西南石油大学)资助项目(OGE201403-04);国家自然科学基金(51179202);山东省自然科学基金(ZR2014EEQ037);山东省自主创新计划(2012CX80101)

Numerical simulation on temperature and stress fields of laser cladded Ni-based coating

  • 1.

    College of Electromechanical Engineering, China University of Petroleum, Qingdao 266580, China

  • 2.

    Offshore Oil Engineering (Qingdao) Co., Ltd., Qingdao 266520, China

摘要

    摘要
  • 摘要: 文中采用SYSWELD软件分别对激光单道和搭接熔覆过程进行模拟分析. 结果表明,激光熔覆处理时经历了快速加热、快速冷却的过程,具有较高的过热度,单道处理时熔覆层表面中心点峰值温度最高,可达2 589 ℃;随着远离熔池中心,各点峰值温度逐渐降低. 激光单道处理后,熔覆层内受拉应力,最大值出现熔覆层与基体交界处,热影响区受压应力. 搭接处理后第一道熔覆层仍受拉应力,但拉应力值明显降低,最大值在热影响区. 由于第一道熔覆的预热作用,第二道各点峰值温度均高于单道处理,应力最大值出现在靠近熔覆层底部位置,而热影响区受压应力.
    Abstract: In this paper, the software SYSWELD was used to simulate the single track and overlapped laser cladding process. The results show that the molten pool undergoes a rapid heating and cooling process with high superheat degree during the laser cladding. During the single track laser cladding, the peak temperature of the center point on the molten pool surface is highest, reaching 2 589 ℃. In addition, the peak temperature decreases as the distance is far away from the molten pool center. After the single track laser cladding, the cladding coating is in the tensile stress status and the maximum value locates at the interface between the cladding coating and the matrix, while the heat affected zone is in compressive stress. During the laser overlapped cladding process, the first cladding layer experiences tensile stress, but the tensile stress value decreases obviously and the maximum stress locates at the heat affected zone. Furthermore, because of the preheating from the first track to the second one, the peak temperatures of the points on the second cladding coating are higher than those of the single track The maximum tensile stress appears at the bottom of the cladding coating while the heat affected zone is in compressive stress.
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    • 参考文献(9)
  • [1] 陈 列, 谢沛霖. 双向扫描激光熔覆止裂机理及试验分析[J]. 焊接学报, 2011, 32(2): 65-68. Chen Lie, Xie Peilin. Theory and exper imental research on controlling crack in double scanning laser cladding process[J]. Transactions of the China Welding Institution, 2011, 32(2): 65-68.
    [2] 钟志勇, 傅 卫, 顾轶蓉, 等. 大型框架结构堆焊过程的动态应力及残余应力分析[J]. 焊接学报, 2010, 31(6): 93-96. Zhong Zhiyong, Fu Wei, Gu Yirong, et al. Analysis of dynam ic and residual stresses in overlaying process of large frame construction[J]. Transactions of the China Welding Institution, 2010, 31(6): 93-96.
    [3] Hofman J T, de Lange D F, Pathiraj B, et al. FEM modeling and experimental verification for dilution control in laser cladding[J]. Journal of Materials Processing Technology, 2011, 211: 187-196.
    [4] Ezugwu E O, Wang Z M, Machado A R. The machinability of nickel-based alloys: a review[J]. Journal of Materials Processing Technology, 1998, 86(1/3): 1-16.
    [5] Ming Q, Lim L C, Chen Z D. Laser cladding of nickel-basedhardfacing alloys[J]. Surface and Coatings Technology, 1998, 106(2/3): 174-182.
    [6] 李亚娟, 李午申. X80管线钢环焊缝接头残余应力的数值模拟[J]. 焊接学报, 2010, 31(6): 97-100, 104. Li Yajuan, Li Wushen. Numerical simulation on welding residual stresses of X80 pipeline girth weld joint[J]. Transactions of the China Welding Institution, 2010, 31(6): 97-100, 104.
    [7] Chaowen Li, Yong Wang, Bin Han. Microstructure, hardness and stress in melted zone of 42CrMo steel by wide-band laser surface melting[J]. Optics and Lasers in Engineering, 2011, 49(4): 530-535.
    [8] Janne Nurminen, Jonne Nakki, Petri Vuoristo. Microstructure and properties of hard and wear resistant MMC coatings deposited by laser cladding[J]. Journal of Refractory Metals & Hard Materials, 2009, 27: 472-478.
    [9] Mcdonald G, Hpendricks R C. Effect of thermal cycling on ZrO2-Y2O3 thermal barrier coatings[J]. Thin Solid Films, 1980, 73(10): 491-496.
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出版历程
  • 收稿日期:  2013-11-24

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