scholarly journals Evolution of Microstructure, Texture and Mechanical Properties for Multilayered Al Matrix Composites by Accumulative Roll Bonding

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5576
Author(s):  
Wen-Jing Wang ◽  
Kam-Chuen Yung ◽  
An-Dong Tang ◽  
Hang-Shan Choy ◽  
Zheng Lv
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Accumulative Roll Bonding ◽  
Mass Fraction ◽  
Mechanical Performance ◽  
Aluminum Matrix ◽  
Matrix Composites ◽  
Roll Bonding ◽  
Grain Distribution ◽  
Al Matrix Composites

Carbon nanotubes (CNTs) reinforced aluminum matrix nanocomposites were fabricated by Accumulative Roll Bonding (ARB). The surface morphologies, mechanical properties, grains texture and orientation of the Al/CNTs nanocomposites were characterized, and the mechanisms and influences of CNTs contents and ARB cycles on the mechanical performance and grain textures of Al/CNTs were investigated and revealed. The strength of the composites rose with increase of the CNTs content, and the ARB cycles showed a 26% improvement when the CNTs content varied from 0 to 1 volume percent (vol.%). The increase in the mass fraction of the carbon nanotubes made the grain distribution in the Al/CNTs nanocomposite samples more diffuse. Besides, the stable texture of the hot rolled crystal grains on the α orientation are constantly turning to {011}< 011> with the mass fraction of the reinforcing phase increased.

Evaluation of mechanical properties and microstructure of Al/Al–12%Si multilayer via warm accumulative roll bonding process

2017 ◽  
pp. 002199831769214 ◽  
Author(s):  
N El Mahallawy ◽  
A Fathy ◽  
M Hassan ◽  
W Abdelaziem
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Accumulative Roll Bonding ◽  
Vickers Microhardness ◽  
Intermetallic Phase ◽  
Aluminum Matrix ◽  
Ductile Rupture ◽  
Roll Bonding ◽  
Metallurgical Bonding ◽  
Multilayered Composites

In this study, accumulative roll bonding (ARB) process was used to produce Al/Al–12%Si multilayered composites at 300℃. Microstructure and mechanical properties of the composites were studied during various ARB cycles by field emission scanning electron microscope (FE-SEM), tensile test, and the Vickers microhardness test. The FE-SEM results revealed that, as the ARB cycle increases the thickness of individual Al and Al–12%Si sheets decreased. After the 5th cycle, Al–12%Si layers were necked, fractured and dispersed in the aluminum matrix. A new intermetallic phase Al3.21Si0.47 was formed at the Al/Al–12%Si interface, indicating that the ARB process could result in a metallurgical bonding. It was observed that the tensile strength of composites improved by increasing the ARB passes, i.e. the tensile strength of the Al/Al–12%Si composite was measured to be about 5.52 and 2.17 times that of the primary 1050-Al and Al–12%Si sheets, respectively. Observations reveal that the failure mode in ARB-processed composites is of the shear ductile rupture type. The microhardness of the Al and Al–12%Si alloys were raised to 110 HV and 121 HV after five cycles.

Fabrication and Strengthening Mechanisms of Al/WC Particles Composite Prepared by Accumulative Roll Bonding

2016 ◽  
Vol 849 ◽  
pp. 397-401
Author(s):  
Chong Yu Liu ◽  
Hong Jie Jiang ◽  
Chun Xia Wang ◽  
Yu Ping Li ◽  
Kun Luo
Keyword(s):  
Mechanical Properties ◽  
Accumulative Roll Bonding ◽  
Metal Matrix ◽  
Matrix Composites ◽  
Strengthening Mechanisms ◽  
Dispersion Strengthening ◽  
Shear Lag ◽  
Roll Bonding ◽  
Dislocation Strengthening ◽  
Aluminium Metal

Aluminium metal matrix composites reinforced with WC ceramic particles were manufactured through warm accumulative roll bonding (ARB) in this study. The microstructures of the composites exhibited excellent particles distribution in the matrices. Compared with the mechanical properties of ARB monolithic pure Al, the Al/WC composites exhibited higher tensile strength. The shear lag theory modified was used in considering the yield strength of the composites. The results indicated that the effects of WC particles in Al/WC composite lead to the thermal expansion dislocation strengthening, small subgrain strengthening, Orowan strengthening and geometrically necessary dispersion strengthening.

Manufacturing and Mechanical Behavior of Titanium-Steel Composite by Accumulative Roll Bonding

2021 ◽  
Vol 882 ◽  
pp. 89-95
Author(s):  
Furqan Tahir ◽  
Guney Guven Yapici
Keyword(s):  
Accumulative Roll Bonding ◽  
Mechanical Performance ◽  
Layered Composite ◽  
Interstitial Free ◽  
Matrix Composites ◽  
Deformation Method ◽  
Roll Bonding ◽  
Brittle Behavior ◽  
Tensile Response ◽  
Steel Composite

Metal matrix composites have attracted interest for use in several engineering applications and this study focuses on the fabrication titanium and interstitial free steel composite and its mechanical performance. Accumulative roll bonding (ARB) was employed as a severe plastic deformation method to fabricate the multi-layered composite up to three cycles where an aluminum alloy is utilized as an interlayer material. Improvement in hardness and strength levels was achieved with an increased number of ARB cycles. Although, the composite obtained after three cycles indicated a brittle behavior, a decent tensile response of around 650 MPa and 10% ductility was demonstrated after two ARB cycles.

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