Temperature field modeling and microstructure analysis of EBW with multi-beam for near α titanium alloy

被引：18
作者：
Fu, Peng-Fei [1 ,2 ]
Mao, Zhi-Yong [2 ]
Lin, Jian [3 ]
Liu, Xin [2 ]
Zuo, Cong-Jin [2 ]
Xu, Hai-Ying [2 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan 430074, Peoples R China
[2] Beijing Aeronaut Mfg Technol Res Inst, Beijing 100024, Peoples R China
[3] Beijing Univ Technol, Beijing 100124, Peoples R China
来源：
VACUUM | 2014年 / 102卷
关键词：
Electron beam welding (EBW); Multi-beam; EB preheating; EB post-heating; Titanium alloy; Temperature field; Microstructure; ELECTRON-BEAM;
D O I：
10.1016/j.vacuum.2013.11.002
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Electron beam welding (EBW) with multi-beam is a novel method to decrease weld cracks, which is suitable for welding the parts in aero industries. We studied EBW with multi-beam on high temperature titanium alloy, which was refers to simultaneous EBW with electron beam (EB) preheating or post-heating. We proposed the ratio of the power for welding and preheating or post-heating, and modeled temperature fields and temperature histories by ABAQUS software. The results showed the temperature of EB post-heating was higher than that of EB preheating, and EB preheating and post-heating respectively lowered the temperature gradient of welding heating and welding cooling, which improved the uniformity of the temperature of EBW. The weld morphologies were consistent with those of the modeling, which verified the feasibility and effectiveness of the temperature fields modeled. The microstructures of the welds with post-heating were coarser than those with preheating. The microhardnesses of the welds with preheating and post-heating were more homogeneous. The influences of EB preheating and EB post-heating on EBW were discussed. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：54 / 62
页数：9
相关论文
共 17 条
  • [1] Fatigue crack growth behaviour of gas tungsten arc, electron beam and laser beam welded Ti-6Al-4V alloy
    Balasubramanian, T. S.
    Balasubramanian, V.
    Manickam, M. A. Muthu
    [J]. MATERIALS & DESIGN, 2011, 32 (8-9): : 4509 - 4520
  • [2] Clauss U, ICPBPT C 2010 BEIJ, P125
  • [3] Clauss U, 2012, 2012 INT EL BEAM WEL, P10
  • [4] Cotton JD, 2002, ADV MATER PROCESS, V160, P25
  • [5] Nickel based superalloy welding practices for industrial gas turbine applications
    Henderson, MB
    Arrell, D
    Larsson, R
    Heobel, M
    Marchant, G
    [J]. SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2004, 9 (01) : 13 - 21
  • [6] Analytical solution for three-dimensional model predicting temperature in the welding cavity of electron beam
    Ho, Ching-Yen
    Wen, Mao-Yu
    Lee, Yi-Chwen
    [J]. VACUUM, 2007, 82 (03) : 316 - 320
  • [7] Jia Wei-ju, 2010, Chinese Journal of Nonferrous Metals, V20, P2136
  • [8] Kolenic F, 2010, 63 IIW C, P711
  • [9] Improved mechanical properties of Ti-15V-3Cr-3Sn-3Al alloy by electron beam welding process plus heat treatments and its microstructure evolution
    Lin, H. C.
    Wang, L. M.
    [J]. MATERIALS CHEMISTRY AND PHYSICS, 2011, 126 (03) : 891 - 897
  • [10] Mao ZY, 2012, TITAN IND PROG, V29, P16
12