Processing Intermetallic Sheet Materials from Elemental Foils Using Cold Roll Bonding and Reaction Annealing

2003 ◽  
Vol 426-432 ◽  
pp. 1873-1878 ◽  
Author(s):  
Viola L. Acoff ◽  
Gajanan Chaudhari
Keyword(s):  
Roll Bonding ◽  
Sheet Materials ◽  
Cold Roll ◽  
Cold Roll Bonding ◽  
Reaction Annealing

Processing Ti-Al-Nb Composite Sheet Materials Using Cold Roll Bonding and Reaction Annealing

2007 ◽  
Vol 539-543 ◽  
pp. 791-796 ◽  
Author(s):  
Viola L. Acoff ◽  
Ren Gang Zhang
Keyword(s):  
Electron Microscopy ◽  
Cold Rolling ◽  
Nominal Composition ◽  
Composite Sheet ◽  
Roll Bonding ◽  
Annealing Stage ◽  
X Ray ◽  
Sheet Materials ◽  
Cold Roll ◽  
Cold Roll Bonding

Multi-layered composite sheet materials with nominal composition of Ti-46Al-9Nb (at.%) were successfully processed from Ti, Al and Nb elemental foils using the cold roll bonding technique. To promote the formation of intermetallic compounds in these composites, annealing at 600°C was employed for specimens subjected to various amounts of reduction. The microstructures and phases that formed after cold rolling, the first annealing stage, and the second annealing stage were characterized using scanning electron microscopy (SEM) equipped with an energy dispersive x-ray spectrometer (EDS), transmission electron microscopy (TEM), and x-ray diffraction (XRD). Good bonding was achieved for all rolled samples with a threshold reduction in thickness of about 35% in the first rolling pass. No new phases were formed in the cold rolling stage. Annealing stage did promote the formation of the TiAl3 and NbAl3 phases at the interfaces.

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

scholarly journals Effect of wire brushing on cold roll bonding of Al 1050 sheets

2015 ◽  
Vol 18 (2) ◽  
pp. 3-4
Author(s):  
W abdelaziem ◽  
N Elmahalawy ◽  
M Hassan ◽  
A Fathy
Keyword(s):  
Roll Bonding ◽  
Cold Roll ◽  
Cold Roll Bonding ◽  
Wire Brushing

The Research Status of Titanium Clad Steel

2014 ◽  
Vol 941-944 ◽  
pp. 187-192
Author(s):  
Jia Geng Liu ◽  
Jing Tao Han ◽  
Jing Liu ◽  
Shuai Ji
Keyword(s):  
Base Metal ◽  
Explosive Welding ◽  
Surface Layers ◽  
Roll Bonding ◽  
Research Status ◽  
Cold Roll ◽  
Cold Roll Bonding ◽  
New Ideas ◽  
Clad Steel ◽  
Atom Bond

The main methods for manufacturing titanium clad steel are described, also the mechanisms of cold roll bonding and explosive welding are specifically analyzed. It is showed that two opposing brittle surface layers produced by scratch brushing break up and underlying base metal is extruded through cracks of the broken layers and creates an atom-to-atom bond for cold roll bonding, however, a lot of parameters affect the bonding for explosive welding. Some new ideas for manufacturing titanium clad steel is discussed herein.

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.

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