アルミニウム溶接金属の機械的性質に及ぼす凝固組織の影響(第 2 報) : A5052-O 材の溶接金属の静的引張性質に及ぼす凝固組織の影響

概要

論文の詳細を見る
The relationship between static tensile properties and weld solidification structures were studied. Tensile test was performed on a base metal and weld metals of A5052-O aluminum alloy sheet at test temperatures of room temperature, -20,-70 and -196℃. Tensile speeds were 5 and 200mm/min. With decreasing the test temperature, the tensile strength and also the elongation of the base metal and the weld metals increased. The tensile strength of columnar crystal had almost the same value as that of equiaxed dendrite. These values agreed approximately with that of the base metal at each test temperature. The tensile strength of feathery crystal had smaller value than that of the other solidification structures and was about 90% of that of the base metal. When a longitudinal-bead tensile test was performed, little difference was observed in the elongation of each solidification structure. The value of elongation was about 75% of that of the base metal. In a transverse bead tensile testing, the elongation of the feathery crystal was considerably smaller than that of the other solidification structures, and was about 60% of the that of the base metal.
社団法人溶接学会の論文
1979-07-05