Boundary coupled dual-equation numerical simulation on mass transfer in the process of laser cladding

作     者：黄延禄 杨永强 卫国强 师文庆 李毅斌 

作者机构：School of Mechanical EngineeringSouth China University of Technology 

出 版 物：《Chinese Optics Letters》 (中国光学快报（英文版）)

年 卷 期：2008年第6卷第5期

页      面：356-360页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080203[工学-机械设计及理论] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0802[工学-机械工程] 0803[工学-光学工程] 

基　　金：the National Natural Sci-ence Foundation of China under Grant No.59871038 the Foundation of State Key Laboratory of Laser Tech-nology,Huazhong University of Science and Technology 

主　　题：Computer simulation Concentration (process) Continuum mechanics Flow simulation Ketones Lasers Mass transfer Metal cladding 

摘      要：The coupled numerical simulation on fluid flow, heat transfer, and mass transfer in the process of laser cladding is undertaken on the basis of the continuum model. In the simulation of mass transfer in the laser molten pool, the concentration distribution in the regions on different sides of the interface between cladding layer and substrate is calculated separately and coupled at the co-boundary. The non-equilibrium solute partition coefficient is obtained from equilibrium solute partition coefficient according to the Sobolev model. By using the developed software which is based on the commercial software PHOENICS 1.4, the distribution of Fe in laser molten pool in an experiment of cladding Stellite 6 on 12CrMoV is calculated. The obtained results well coincide with the experimental ones.