In situ scanning electron microscopy observation of fracture crack propagation in the welding interface between aluminium alloy and steel
Authors: Qiu, R.1; Iwamoto, C.2; Satonaka, S.2
Source: Materials Science and Technology, Volume 25, Number 10, October 2009 , pp. 1189-1192(4)
Publisher: Maney Publishing
Abstract:
Reaction products formed at the welding interface of aluminium/steel can deteriorate mechanical properties. It would therefore be quite beneficial to analyse the mechanism of crack propagation to obtain strong joints. In this study, we directly observed the fracture process of the aluminium/steel sample by in situ scanning electron microscopy. In situ observation revealed that the crack propagated in the reaction layer and aluminium, and that crack propagation was arrested by the interface between the reaction layer and steel.Keywords: ALUMINIUM ALLOY; INTERFACE; TENSION TEST; IN SITU; CRACK
Document Type: Research article
DOI: 10.1179/174328408X374649
Affiliations: 1: School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471003, China 2: Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan

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