Preprint Article Version 1 This version is not peer-reviewed

Brazed Joint Interface Bonding Strength of AR500 Steel and AA7075 Aluminium Alloy

Version 1 : Received: 26 July 2018 / Approved: 26 July 2018 / Online: 26 July 2018 (08:25:19 CEST)

A peer-reviewed article of this Preprint also exists.

Muhamed, M.N.; Omar, M.Z.; Abdullah, S.; Sajuri, Z.; Wan Zamri, W.F.H.; Abdullah, M.F. Brazed Joint Interface Bonding Strength of AR500 Steel and AA7075 Aluminium Alloy. Metals 2018, 8, 668. Muhamed, M.N.; Omar, M.Z.; Abdullah, S.; Sajuri, Z.; Wan Zamri, W.F.H.; Abdullah, M.F. Brazed Joint Interface Bonding Strength of AR500 Steel and AA7075 Aluminium Alloy. Metals 2018, 8, 668.

Journal reference: Metals 2018, 8, 668
DOI: 10.3390/met8090668

Abstract

Joining of aluminium alloys to steels has been extensively studied, especially in the automotive sector. However, aluminium alloys are known to be difficult to join with steels when methods involving fusion welding are used because of hot cracking problem. Hence, a high strength joint between these dissimilar metals would be of benefit especially in reducing the weight of products. In this work the torch brazing method was applied to join AR500 steel with AA7075 aluminium alloy using Al-Si-Zn base filler metal at various flame times. The effect of the brazing work on the intermetallic phase formation and the mechanical strength of the joints were investigated. In this work, the maximum shear load obtained was 6460 N and the presence of the intermetallic phases had reduced the shear strength of the brazed joints. However, the torch brazing process using Al-Si-Zn filler metal had successfully facilitated the joining of these dissimilar metals.

Subject Areas

dissimilar metal; torch brazing; interface joint; intermetallic compound; shear strength

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