材料期刊网

微量活性组元氧对焊接熔池 Marangoni对流和熔池形貌影响的数值模拟

董文超 , 陆善平 , 李殿中 , 李依依

金属学报

针对SUS304不锈钢的定点钨极惰性气体保护焊过程，建立三维瞬态定点热源作用下的焊接熔池数学模型，系统研究了不同氧含量下的熔池温度场、速度场以及熔池形貌演变过程。结果表明：随着熔池中活性组元氧的增加，熔池内的对流模式经历了以外对流为主、内外对流共存到以内对流为主的演变过程，熔池形貌由浅且宽形、“勺”...

关键词: 微量活性组元 , Oxygen , Marangoni convection , Weld shape

Effect of Welding Parameters on GTA Weld Shape for Pure Iron Plate under Ar-O2 Mixed Shielding

Shanping LU

材料科学技术（英文）

Weld shape variation for different welding parameters is investigated on pure iron plate under gas tungsten arc (GTA) welding with argon-oxygen mixed shielding. Results showed that small addition of oxygen to the argon base shielding gas can effectively adjust the oxygen adsorption to the molten poo...

关键词: Weld shape , null , null , null

Effect of Welding Parameters on GTA Weld Shape for Pure Iron Plate under Ar-O2 Mixed Shielding

材料科学技术（英文）

关键词: