J0403-3-5 7075アルミニウム合金の摩擦攪拌接合継手の室温力学特性([J0403-3]締結・接合部の力学と評価(3):フレッティング,溶接・接合)

概要

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The mechanical properties of friction stir welded 7075-T6 and 7075-O aluminum alloy joints at room temperature were investigated. In comparison with the base metal, the stir zone of the T6 joints had smaller Vickers hardness but that of the O joints had greater hardness. The application of natural aging for 5 months caused the hardness in the stir zones of both joints to be greater than that of as-welded joints. On the other hand, the tensile properties of the naturally aged joints were generally lower to those of the base metals. The results were suggested that the existence of the welding defects in the joints to affect the tensile properties.
一般社団法人日本機械学会の論文
2010-09-04