scholarly journals Effect of Annealing on the Interface and Mechanical Properties of Cu-Al-Cu Laminated Composite Prepared with Cold Rolling

Materials ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 369
Author(s):  
Xing Fu ◽  
Rui Wang ◽  
Qingfeng Zhu ◽  
Ping Wang ◽  
Yubo Zuo
Keyword(s):  
Mechanical Properties ◽  
Annealing Temperature ◽  
Laminated Composite ◽  
Phase Evolution ◽  
Annealing Process ◽  
High Annealing Temperature ◽  
Roll Bonding ◽  
Cold Roll ◽  
High Annealing ◽  
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).

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

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.

Enhanced Plasticity of Cu-Based Laminated Composites Produced by Cold Roll-Bonding

2010 ◽  
Vol 667-669 ◽  
pp. 1015-1020
Author(s):  
H.S. Liu ◽  
Bin Zhang ◽  
G.P. Zhang
Keyword(s):  
Laminated Composites ◽  
Uniform Elongation ◽  
Laminated Composite ◽  
Plastic Instability ◽  
Interface Bonding ◽  
Roll Bonding ◽  
Cold Roll ◽  
Submicron Scale ◽  
Cold Roll Bonding ◽  
Cold Rolled

Two different laminated composites with submicron-scale grain size and strong interface bonding toughness, Cu/Al and Cu/Cu, were fabricated by cold-roll bonding at ambient temperature, and then annealing of the laminated composites was conducted to get different interface bonding toughness. It was found that a better strength-plasticity combination for the laminated composites could be obtained through stronger interface bonding toughness, which effectively delayed the onset of plastic instability and premature local necking of the material. Uniform elongation of both Cu/Al and Cu/Cu laminated composites was enhanced compared with that of the cold-rolled Cu. At the same strength level, plasticity of the Cu/Cu laminated composite is better than that of the Cu/Al one and that of the cold-rolled Cu. Mechanisms of plasticity instability and fracture of the laminated composites were evaluated.

Effect of Annealing Temperature on Mechanical Properties of Cold Drawn Pearlitic Steel Wires

2006 ◽  
Vol 118 ◽  
pp. 31-34 ◽  
Author(s):  
Won Jong Nam ◽  
Hyung Rak Song ◽  
Kyung Tae Park
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Annealing Time ◽  
Annealing Temperature ◽  
Annealing Treatment ◽  
Pearlitic Steel ◽  
High Annealing Temperature ◽  
Annealing Temperatures ◽  
Steel Wires ◽  
High Annealing

The effects of annealing temperature and annealing time on mechanical properties of cold drawn pearlitic steel wires containing 0.84wt% of silicon were investigated. Annealing treatment was performed on cold drawn steel wires for the temperature range of 200°C to 450°C with the different annealing time of 30sec, 1min, 15min and 1hr. The increase of tensile strength at the low annealing temperatures would be related with strain ageing behavior, while the decrease of tensile strength at the high annealing temperature is due to the spheroidization of cementite plates and the occurrence of recovery of the lamellar ferrite in the pearlite.

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

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.

Effect of Pre-Rolling Heat Treatments on the Bond Strength of Cladded Galvanized Steels in a Cold Roll Bonding Process

2016 ◽  
Vol 87 (12) ◽  
pp. 1619-1626 ◽  
Author(s):  
Illia Hordych ◽  
Dmytro Rodman ◽  
Florian Nürnberger ◽  
Christian Hoppe ◽  
Hans Christian Schmidt ◽  
...  
Keyword(s):  
Bond Strength ◽  
Heat Treatments ◽  
Bonding Process ◽  
Roll Bonding ◽  
Galvanized Steels ◽  
Cold Roll ◽  
Cold Roll Bonding ◽  
Rolling Heat
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