Simulation of Thermophysical Processes at Laser Welding of Alloys Containing Refractory Nanoparticles

摘要：

　　Mathematical model is formulated for description of thermophysical processes at laser welding of metal plates for the case when modifying nanoparticles of refractory compounds (nanopowder inoculators-NPI) are introduced into the weld pool.Specially prepared nanoparticles of refractory compounds serve here as crystallization centers,i.e.in fact they are exogenous inoculants on which surface clusters are grouped.This can be used to control the melt crystallization process and formation of its structure,and,therefore,properties of the weld seam.As an example,calculation results of the butt welding of aluminum alloy and steel plates are presented.The results of calculation and experimental data comparison are shown.

关键词： Mathematical model laser welding nanopowder inoculators crystallization process calculation results

作者: Anatoly N.Cherepanov Vasily P.Shapeev Liu Guangxun Cao Lamei

作者单位: Khristianovich Institute of Theoretical and Applied Mechanics SB RAS; Novosibirsk State University N Beijing Institute of Aeronautical Materials Beijing, China

会议类型: 国际会议

会议名称: 2012年国际材料与化学工程研讨会

会议地点: 北京

会议语种:英文

页码: 264-268

在线出版日期: 2012-10-26（万方平台首次上网日期，不代表论文的发表时间）