[Kovove materialy - Metallic materials]
    Sat - June 24, 2017 - 22:39 No. of hits : 825187 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 55 (2017), Issue 1

Strength and electrical conductivity of roll-bonded Cu/Al-Mg-Si/Cu clad composite
KIM, W.-N., HONG, S. I.
vol. 55 (2017), no. 1,

Abstract
Tri-layered Cu/Al-Mg-Si/Cu clad composite was cold roll-bonded, and its mechanical/electrical properties were studied. In the roll-bonded and aged Cu/Al-Mg-Si/Cu clad composite, neither interfacial reaction layer nor interface defects were observed. The strength as high as 415 MPa with the conductivity of 82 % IACS was attained in 3-ply light-weight Cu/Al-Mg-Si/Cu clad composite. The ductility and conductivity of clad composite are increased appreciably with heat treatment at 175 °C. After mechanical testing, the interface crack propagation and fracture in the well-bonded interface between metallic Cu and Al occurred in softer Al matrix. The increase of detached Al lumps onto the separated Cu side in clad composite heat-treated at 175 °C strongly supports that the interface bonding can be enhanced during aging of Al-Mg-Si alloy layer in Cu/Al-Mg-Si/Cu clad composite. The increased ductility in the aged Cu/Al-Mg-Si/Cu clad composite can be attributed to the enhanced interface bonding and precipitation in Al-Mg-Si layers.

Key words
composites, clad, roll bonding, interface, strength, conductivity

[open article.pdf] Full text (729 KB)

[IMMS SAS]      UMMS SAV - Bratislava (SK)   ver. 1.6.0   (oš)        [go to HOME PAGE]

Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


Article abstracts updated: 2017-05-29 10:28     
Articles in press revised: 2017-06-21 07:05    
Full text pdf uploaded: 2017-05-29 09:42   
Information updated: 2017-05-10 17:18  

© OldSoft, 2004, …, 2017