５０８３アルミニウム合金板溶接継手のクリープとクリープ破断
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概要
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Creep and creep rupture tests were carried out for MIG welded joints of 5083 aluminum alloy plates under an ambient atmosphere at temperatures between 573 and 723 K. Obtained results were compared to those for the base metal. 5083-O plates of 20 mm thickness were welded by high current MIG welding using 5183 filler wire with a single welding pass for each side. Round bar creep specimens were machined out of the welded joints. The welded joints showed nearly the same minimum creep rate as the base metal at 573 K. However, the minimum creep rate of the welded joints was generally lower than that of the base metal at 623 and 673 K. At these temperatures, creep rupture of the welded specimens always occurred in the base metal. In the welded specimens, creep strain is not uniform and the base metal tended to creep preferentially to the weld metal. The Larson-Miller plot of the rupture time of the welded joints coincided with that of the base metal. High temperature tensile strength of welded joints is slightly higher than that of the base metal.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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