Microstructure and mechanical properties of Al/Al2O3 MMC produced by anodising and cold roll bonding

Cu-Al-Cu laminated composite was prepared with cold roll bonding process and annealing was carried out to study the phase evolution during the annealing process and its effect on the mechanical properties of the composite. The experimental results showed that after annealing the brittle intermetallics in the interface mainly includes Al4Cu9, AlCu and Al2Cu. With the increase of annealing temperature, the tensile strength of the composite decreases and the elongation shows a different variation which increases at the beginning and then decreases after a critical point. This phenomenon is related to the evolution of intermetallic compounds in the interface of the composite. It was also found that the crack source of the tensile sample is in the interface and delamination appeared at high annealing temperature (450 °C).

Download Full-text

Effects of intermediate Ni layer on mechanical properties of Al–Cu layered composites fabricated through cold roll bonding

International Journal of Minerals Metallurgy and Materials ◽

10.1007/s12613-018-1604-9 ◽

2018 ◽

Vol 25 (5) ◽

pp. 573-583 ◽

Cited By ~ 2

Author(s):

Ali Shabani ◽

Mohammad Reza Toroghinejad ◽

Alireza Bagheri

Keyword(s):

Mechanical Properties ◽

Layered Composites ◽

Roll Bonding ◽

Cold Roll ◽

Cold Roll Bonding

Download Full-text

Study on the Annealing Process of a Cu-Zn-Al-Ni Alloy

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1120-1121.1208 ◽

2015 ◽

Vol 1120-1121 ◽

pp. 1208-1213

Author(s):

Xing Fu ◽

Wen Xu Wang ◽

Yao Li ◽

Yu Bo Zuo ◽

Ping Wang ◽

...

Keyword(s):

Mechanical Properties ◽

Annealing Temperature ◽

High Strength ◽

Annealing Process ◽

Brass Alloy ◽

Roll Bonding ◽

Excellent Corrosion Resistance ◽

Cold Roll ◽

Ni Alloy ◽

Cold Roll Bonding

Aluminum brass possesses an attractive combination of properties including high strength, high thermal and electrical conductivity, good mechanical workability, excellent corrosion resistance, low susceptibility to stress corrosion cracking. This make it a preferred choice for bimetal strips. The materials for preparing bimetal strips with cold roll bonding should have a good plasticity. In the present work, a Cu-Zn-Al-Ni alloy was proposed and the annealing process for this aluminium brass alloy was studied. The effect of annealing temperature and annealing time on the microstructure and mechanical properties was investigated. The proper annealing parameters were obtained.

Download Full-text

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

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.508.56 ◽

2014 ◽

Vol 508 ◽

pp. 56-60

Author(s):

In Ho Lee ◽

Kap Ho Lee ◽

Hwan Tae Kim ◽

Sun Ig Hong

Keyword(s):

Mechanical Properties ◽

Hybrid Composite ◽

Effective Area ◽

Commercial Purity ◽

Interface Bonding ◽

Roll Bonding ◽

Cold Roll ◽

Heat Treated ◽

Cold Roll Bonding ◽

Metallic Bonding

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.

Download Full-text