INFLUENCE OF SURFACE-ACTIVE ELEMENTS ON FLUID FLOW OF MIG WELDPOOL

作     者：J.S.Sun J.Q.Gao Y.Feng Y.W.Luan 

作者机构：MOEKeyLab.ofLiquidStructureandHeredityofMaterialsShandongUniversityJi＇nan250061China TechnologyCenterJi＇nanIronandSteelGroupJi＇nan250101China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：2004年第17卷第2期

页      面：189-193页

核心收录：

学科分类：080503[工学-材料加工工程] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0703[理学-化学] 0811[工学-控制科学与工程] 080201[工学-机械制造及其自动化] 

基　　金：supported by the Foundation for Excellent Youth Scientist of Shandong province(No.03BS105) 

主　　题：surface-active elements fluid flow numerical analysis 

摘      要：A mathematical model describing the behavior of metal inert gas (MIG) welding is formulated in the paper. By means of numerical simulation, the influence of surface- active elements on fluid flow of MIG weldpool is studied. The calculation results show that by adding surface-active elements, the fluid flow behavior is drastically changed and the flow fluid flows from lower to upper in vertical direction at the rear of weldpool (w0). The physical phenomenon is explained from the viewpoint of fluid flow behavior of weldpool that the properties of weld metal is greatly improved and the content of diffused hydrogen is reduced, thus providing a basis for developing new welding materials.