Zobrazeno 1 - 6
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pro vyhledávání: '"Yanhong Wei"'
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 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
Publikováno v:
Science and Technology of Welding and Joining. 21:446-451
A quantitative phase field model is developed to simulate dendrite morphology and solute distributions of the Al–4 wt-% Cu alloy in Gas Tungsten Arc Welding (GTAW) welding molten pool under transient conditions. The functions of temperature gradien
Publikováno v:
International Journal of Heat and Mass Transfer. 142:118450
The solidification patterns are dominated by the surface tension of solid/liquid interface and the transfer process of heat and mass. The continuously changing solidification parameters in the molten pool make the differences between welding and dire