The Finite Element Analysis of Flow Field and Temperature Field in the Molten Pool of Surface Treatment by Electron Beam

Abstract:

A finite element model was established to describe the flow field and temperature field during the surface modification by electron beam in this paper. The driving forces of molten pool were considered in the mode. The flow of liquid metal was different between the inside and outside of the beam spot; the direction of the flow was along the surface to the specimen thickness. When the liquid metal was in the bottom of the pool, it flowed along the bottom to the pool edge. The largest flow velocity was 0.28m/s in the center of the beam spot, the minimum flow velocity was 0.11 m/s in the bottom of molten pool. The temperature of sample is uniform distribution, the temperature distribution show a gradient distribution in cross section.

• Periodical: Advanced Materials Research (Volumes 591-593)
• Pages: 908-911
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.591-593.908
• Online since: November 2012
• Authors: Rong Wang, Guo Bin Shen, De Qiang Wei
• Keywords: Driving Force, Electron Beam, Flow Field, Melt Pool, Surface Modification, Temperature Field

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