Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Yanhong Wei"'
Autor:
Yanhong Wei, Xiangbo Liu
Publikováno v:
Journal of Materials Engineering and Performance. 29:5490-5502
The current work achieved quantitative analysis of stress evolution and interaction in continuous spot welding processes that consider the stamping dimensional deviation. The reverse component that contains the stamping dimensional deviation was firs
Publikováno v:
Metallurgical and Materials Transactions A. 51:887-896
A cellular automata model combined with the finite element method was developed to simulate the solidification microstructure of nickel-based alloy GH3039 molten pool gotten with gas tungsten arc welding. The macro temperature field simulated with th
Publikováno v:
International Journal of Heat and Mass Transfer. 130:204-214
The initial planar instability will appear with the solute accumulation ahead of the solid/liquid (S/L) interface during solidification in a molten pool. The instability process is dominated by the misorientation angle and the surface tension anisotr
Autor:
Fengyi Yu, Yanhong Wei
Publikováno v:
Metallurgical and Materials Transactions A. 49:3293-3305
The effects of surface tension anisotropy and welding parameters on initial instability dynamics during gas tungsten arc welding of an Al-alloy are investigated by a quantitative phase-field model. The results show that the surface tension anisotropy
Publikováno v:
Journal of Materials Processing Technology. 255:285-293
The misorientation angle between the preferred crystalline orientation and the temperature gradient influences both the incubation time and the average wavelength of any initial instability during the planar growth stage, as well as the dendrite grow
Autor:
Lei Wang, Yanhong Wei
Publikováno v:
JOM. 70:733-738
A phase field model is developed to predict curved dendrite growth in the gas tungsten arc (GTA) welding pool of an Al-Cu alloy. The equations of temperature gradient, pulling velocity and dendrite growth orientation are proposed to consider the tran
Publikováno v:
Metallurgical and Materials Transactions B. 48:3388-3400
A two-dimensional cellular automaton–finite volume model was developed to simulate dendrite growth of Al-3 wt pct Cu alloy during solidification to investigate the effect of temperature and fluid flow on dendrite morphology, solute concentration di
Publikováno v:
Metallurgical and Materials Transactions B. 48:2685-2694
A cellular automaton (CA)–finite difference model is developed to simulate dendrite growth and solute diffusion during solidification process in the molten pool of Al-Cu alloy. In order to explain the interaction between the dendritic growth and so
Publikováno v:
International Journal of Heat and Mass Transfer. 167:120835
Wire-arc additive manufacturing provides the fastest metal printing rate among all printing processes. Heat transfer and fluid flow models offer a usable connection between process variables and the parameters that affect the structure and properties
Publikováno v:
Metallurgical and Materials Transactions A. 48:4314-4323
Welding porosity defects significantly reduce the mechanical properties of welded joints. In this paper, the hydrogen porosity evolution coupled with dendrite growth during solidification in the molten pool of Al-4.0 wt pct Cu alloy was modeled and s