Shear texture gradient in AA6061 aluminum alloy processed by accumulative roll bonding with high roll roughness

2014 ◽  
Vol 594 ◽  
pp. 12-22 ◽  
Author(s):  
Lihong Su ◽  
Cheng Lu ◽  
Azdiar A. Gazder ◽  
Ahmed A. Saleh ◽  
Guanyu Deng ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Accumulative Roll Bonding ◽  
Texture Gradient ◽  
Shear Texture ◽  
Roll Bonding ◽  
Roll Roughness

scholarly journals Bonding of similar AA3105 aluminum alloy by Accumulative Roll Bonding process

2021 ◽  
Author(s):  
Mohamad El Mehtedi ◽  
Daniele Lai ◽  
Rayane Almehtedi ◽  
Mauro Carta ◽  
Pasquale Buonadonna ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Accumulative Roll Bonding ◽  
Sheet Thickness ◽  
Tensile Tests ◽  
Ultrafine Grain ◽  
Reinforced Composites ◽  
Final Thickness ◽  
Roll Bonding ◽  
Dissimilar Metal ◽  
Micro Cracks

Accumulative roll-bonding (ARB) is a novel plastic straining process aimed at bonding of similar and dissimilar metal combinations. Moreover, it is used recently to produce ultrafine grain materials and metal matrix reinforced composites to enhance mechanical, electrical, and corrosion resistance properties. This work presents an experimental study of roll bonding and accumulative roll bonding of similar AA3105 aluminum alloy at 300°C with a final thickness of 1.2 mm, focusing especially on bond strength evaluation and layers continuities. Tensile tests and three-points bending were performed to mechanical characterize the produced sheets in the various steps and based on the number of the cycles. The maximum strength was reached after 3 ARB cycles. After 4 cycles, the bonding interfaces have a uniform distribution through the sheet thickness, it is possible to distinguish only the interface formed in the last pass in the fracture surface, and no significant enhancement in strength was observed. Starting from 2 ARB cycles, micro-cracks were observed at the outer surface for bending angles greater than 90 deg, and at 180 deg all ARBed samples except A1 were failed.

Texture Gradient through Thickness of a Cross Roll-Bonded AA5754/AA6061 Aluminum Composite

2016 ◽  
Vol 879 ◽  
pp. 2038-2043
Author(s):  
Kévin Verstraete ◽  
Anne Laure Helbert ◽  
Francois Brisset ◽  
Thierry Baudin
Keyword(s):  
Accumulative Roll Bonding ◽  
Room Temperature ◽  
Rolling Direction ◽  
Al Alloys ◽  
Texture Gradient ◽  
Aluminum Composite ◽  
Roll Bonding ◽  
Strong Gradient

The present study aims to study the texture heterogeneity of an AA5754/AA6061 composite processed by cross accumulative roll-bonding at room temperature. Both Al alloys were first roll-bonded with a 50% reduction and the product was cut in half. Then, both parts were stacked and finally another roll-bonding was carried out but the initial rolling direction was turned by 90°. As a result, a strong gradient appears in the thickness of the composite because of shearing but also due to the alloys composition dissimilarity. As a consequence, it appears each of the four resulted layers has its own texture. In the bulk, AA5754 layer promotes the ND-rotated Brass {011}<755> and S {123}<634> components while AA6061 develops the ND-rotated Brass and Dillamore {4 4 11}<11 11 8> components. On the surface, AA5754 favors the Dillamore component whereas AA6061 shows the rotated-Cube {001}<110> component.

Deformation textures of AA8011 aluminum alloy sheets severely deformed by accumulative roll bonding

2005 ◽  
Vol 36 (11) ◽  
pp. 3151-3163 ◽  
Author(s):  
Hyoung Wook Kim ◽  
Suk Bong Kang ◽  
Nobuhiro Tsuji ◽  
Yoritoshi Min Amino
Keyword(s):  
Aluminum Alloy ◽  
Accumulative Roll Bonding ◽  
Roll Bonding ◽  
Deformation Textures
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