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Tensile behaviour of mig welded hydrogenated Al-alloy EN AW-5083 (CROSBI ID 586443)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Dolić, Natalija ; Malina, Jadranka ; Kožuh, Zoran ; Garašić, Ivica ; Tunić Jozef Tensile behaviour of mig welded hydrogenated Al-alloy EN AW-5083 // 8. Europsko savjetovanje Eurojoin 8 : zbornik radova = 8th European Conference : proceedings / Kožuh, Zoran (ur.). Zagreb: Hrvatsko društvo za tehniku zavarivanja, 2012. str. 687-696

Podaci o odgovornosti

Dolić, Natalija ; Malina, Jadranka ; Kožuh, Zoran ; Garašić, Ivica ; Tunić Jozef

engleski

Tensile behaviour of mig welded hydrogenated Al-alloy EN AW-5083

In this paper the influence of hydrogenation on mechanical properties and microstructure of MIG double-side welded EN AW-5083 aluminium alloy was investigated. According to the results obtained from tensile tests, there was no significant difference in yield and tensile strength between uncharged and H-charged weld, but elongation and contraction were decreased in the hydrogenated specimen. Such tensile behaviour suggests that hydrogen was absorbed in amount high enough to cause the embrittlement of welded joints, which is confirmed by embrittlement index IHE = 20.9%. Detachment between base metal and weld started at the weld-root and afterwards the main crack continues spreading along the fusion line characterized by as-cast microstructure with fine equiaxed columnar grains. A great number of grain boundaries could be considered as H-traps and the sites from where initial microcracks start.

MIG zavarivanje; elektrokemijsko navodičenje; mehanička svojstva; mikrostruktura; lijevana alumnijska legura EN AW-5083

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Podaci o prilogu

687-696.

2012.

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objavljeno

978-953-7518-02-8

Podaci o matičnoj publikaciji

8. Europsko savjetovanje Eurojoin 8 : zbornik radova = 8th European Conference : proceedings

Kožuh, Zoran

Zagreb: Hrvatsko društvo za tehniku zavarivanja

Podaci o skupu

European Conference on Welding, Joining and Cutting (8 ; 2012)

poster

24.05.2012-26.05.2012

Pula, Hrvatska

Povezanost rada

Metalurgija, Strojarstvo