Interfacial microstructure and strength of steel/aluminum alloy joints welded by resistance spot welding with cover plate

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Interfacial microstructure and strength of steel/aluminum alloy joints welded by resistance spot welding with cover plate

Interfacial microstructure and strength of steel/aluminum alloy joints welded by resistance spot welding with cover plate

Qiu, Ranfeng / Iwamoto, Chihiro / Satonaka, Shinobu

Aluminum alloy A5052 was joined to cold-rolled steel SPCC (Steel Plate Cold Commercial) and austenitic stainless steel SUS304 using resistance spot welding with a cover plate. The interfacial microstructure was observed using transmission electron microscopy. A thick two-layered reaction layer contains Fe2Al5 and FeAl3 and a thin serration reaction layer contains Fe2Al5 and FeAl3 were observed at the A5052/SPCC and A5052/SUS304 interface, respectively. Mechanical property analysis suggested that the reaction layer has no effect on the tensile shear strength of the A5052/SUS304 joint and that the tensile shear strength of the A5052/SPCC joint is influenced by the reaction layer formed at its interface.

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Title :

Interfacial microstructure and strength of steel/aluminum alloy joints welded by resistance spot welding with cover plate

Contributors:

Qiu, Ranfeng (author) / Iwamoto, Chihiro (author) / Satonaka, Shinobu (author)

Published in:

Journal of Materials Processing Technology ; 209 , 8 ; 4186-4193

Publication date :

2009

Size :

8 Seiten, 15 Bilder, 2 Tabellen, 16 Quellen

ISSN :

DOI :

https://doi.org/10.1016/j.jmatprotec.2008.11.003

Type of media :

Article (Journal)

Type of material :

Print

Language :

English

Keywords :

Punktschweißen , Al-Legierung , kalt gewalztes Blech , austenitischer nichtrostender Stahl , Deckplatte , Mikrogefüge , Grenzfläche , Transmissionselektronenmikroskop , Schweißlinse , Schweißstrom , mechanische Festigkeit , Aluminiummagnesiumlegierung

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