TY - JOUR
T1 - Finite element modeling of the linear friction welding of GH4169 superalloy
AU - Yang, Xiawei
AU - Li, Wenya
AU - Li, Jinglong
AU - Xiao, Bo
AU - Ma, Tiejun
AU - Huang, Zhe
AU - Guo, Jia
N1 - Publisher Copyright:
© 2015 Elsevier Ltd.
PY - 2015/12/15
Y1 - 2015/12/15
N2 - In the present paper, finite element method (FEM) simulation of linear friction welding (LFW) GH4169 superalloy was carried out using ABAQUS software. The friction coefficients of GH4169 superalloy under different parameters (friction load, friction velocity and specimen temperature) were obtained using the friction and wear experiments. A two-dimensional (2D) coupled thermo-mechanical model was established. Using this model, the temperature fields of GH4169 superalloy during LFW process was firstly investigated. Based on the shearing and extrusion deformations during LFW process, the mises stress and the equivalent plastic strain fields of LFW GH4169 superalloy at different welding times were studied. The actual LFW process of GH4169 superalloy was recorded using a high speed camera. The surface temperature fields of joint were experimentally observed using an infrared thermal imaging instrument. Axial shortening and macroscopic morphology of linear friction welded joint obtained from experiments validated the simulation results. Finally, by consideration of the temperature fields of the simulated welded joint, the authors experimentally investigated the microstructure of the actual welded joint.
AB - In the present paper, finite element method (FEM) simulation of linear friction welding (LFW) GH4169 superalloy was carried out using ABAQUS software. The friction coefficients of GH4169 superalloy under different parameters (friction load, friction velocity and specimen temperature) were obtained using the friction and wear experiments. A two-dimensional (2D) coupled thermo-mechanical model was established. Using this model, the temperature fields of GH4169 superalloy during LFW process was firstly investigated. Based on the shearing and extrusion deformations during LFW process, the mises stress and the equivalent plastic strain fields of LFW GH4169 superalloy at different welding times were studied. The actual LFW process of GH4169 superalloy was recorded using a high speed camera. The surface temperature fields of joint were experimentally observed using an infrared thermal imaging instrument. Axial shortening and macroscopic morphology of linear friction welded joint obtained from experiments validated the simulation results. Finally, by consideration of the temperature fields of the simulated welded joint, the authors experimentally investigated the microstructure of the actual welded joint.
KW - Coupled thermo-mechanical model
KW - Finite element method
KW - GH4169 superalloy
KW - Linear friction welding
KW - Microstructure
UR - http://www.scopus.com/inward/record.url?scp=84943651351&partnerID=8YFLogxK
U2 - 10.1016/j.matdes.2015.08.036
DO - 10.1016/j.matdes.2015.08.036
M3 - 文章
AN - SCOPUS:84943651351
SN - 0264-1275
VL - 87
SP - 215
EP - 230
JO - Materials and Design
JF - Materials and Design
ER -