Interface Bonding and its Effect on the Mechanical Properties in Roll-Bonded Cu/Al/Cu Hybrid Alloy

In Ho Lee; Kap Ho Lee; Hwan Tae Kim; Sun Ig Hong

doi:10.4028/www.scientific.net/AMM.508.56

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 508Interface Bonding and its Effect on the Mechanical...

Interface Bonding and its Effect on the Mechanical Properties in Roll-Bonded Cu/Al/Cu Hybrid Alloy

Abstract:

Cu-Cr/Al-Fe-Cr/Cu-Cr clad-composite was processed by cold roll-bonding and the effect of interface bonding on the mechanical properties was examined. The clad plates were peeled-off and their separated fracture surface was analyzed. The interface of as-roll-bonded Cu-Cr/Al-Fe-Cr/Cu-Cr hybrid composite was observed to be intact and the interface intermetallics were visible in Cu-Cr/Al-Fe-Cr/Cu-Cr heat-treated at 450°C. The effective area fraction of region with strong mechanical metallic bonding for the as-roll-bonded Cu-Cr/Al-Fe-Cr/Cu-Cr hybrid composite was observed to be lower than that observed in Cu/Al/Cu. The less effective bonding in Cu-Cr/Al-Fe-Cr/Cu-Cr in roll-bonding is thought to be due to the higher strengths of Cu-Cr and Al-Fe-Cr than Cu and Al of commercial purity. The decrease of strength of Cu-Cr/Al-Fe-Cr/Cu-Cr hybrid composite after heat treatment is associated with the softening of Al-Fe-Cr matrix at 450°C, which is far greater than precipitation strengthening of Cu-Cr at 450°C.

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Periodical:

Applied Mechanics and Materials (Volume 508)

Pages:

56-60

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.508.56

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Online since:

January 2014

Authors:

In Ho Lee, Kap Ho Lee, Hwan Tae Kim, Sun Ig Hong*

Keywords:

Cladding, Interlayer, Intermetallic, Roll Bonding

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* - Corresponding Author

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