溶接学会論文集
Print ISSN : 0288-4771
レーザブレイジング用いたアルミニウム合金とマグネシウム合金の異材接合に及ぼすTiインサートの効果
小椋 智祢津 俊介池 和薫才田 一幸
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2018 年 36 巻 4 号 p. 247-252

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The effect of titanium interlayer on dissimilar joining between an aluminum alloy and a magnesium alloy was evaluated. Mutual diffusion between aluminum and magnesium at the interface was suppressed by the interlayer. Ti3Al with the thickness of 200 nm was formed at the AZ92/Ti by the reaction of titanium and small amount of aluminum, whereas Al3Ti with the thickness of 5 μm was formed at Ti/A5052 interface by the reaction between titanium and local-melted aluminum, respectively. Tensile shear testing showed that a sound joint that fractured at the base metal was obtained and the maximum value of 191 N/mm achieved 880 W is about 81 % that of the A5052 base metal, which was significantly increased compared with the direct laser brazing between A5052 and AZ31 joint.

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