WEAR PROPERTIES OF 1100 AL ALLOY PRODUCED BY ACCUMULATIVE ROLL BONDING

2008 ◽  
Vol 22 (18n19) ◽  
pp. 2848-2857 ◽  
Author(s):  
A. KAZEMI TALACHI ◽  
M. EIZADJOU ◽  
H. DANESH MANESH ◽  
K. JANGHORBAN
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Accumulative Roll Bonding ◽  
Al Alloy ◽  
High Angle ◽  
Wear Properties ◽  
Roll Bonding ◽  
Fine Grained ◽  
Pin On Disk ◽  
Scanning Electron

Ultra-fine grained 1100 Al alloy was successfully produced by accumulative roll bonding (ARB) process. TEM investigation and SAD patterns showed that, after eight cycles of ARB, sheets were found to contain ultra-fine grains with high angle grain boundaries. The mechanical properties of the ARB processed (ARBed) 1100 aluminum alloy increased with increasing the number of ARB cycles. The elongation dropped abruptly at the first cycles. Wear properties were investigated using a pin on disk wear machine at ambient environment. Contrary to an expectation, the wear resistance of the ARBed Al alloy was less than the non-processed Al alloy. Morphologies of worn surfaces were studied by scanning electron microscope (SEM).

Structure and mechanical properties of Ni/Ti multilayered composites produced by accumulative roll-bonding process

2019 ◽  
Vol 54 (8) ◽  
pp. 1119-1126
Author(s):  
Mohammad Mokhles ◽  
Morteza Hosseini ◽  
Habib Danesh-Manesh ◽  
Seyed Mojtaba Zebarjad
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Scanning Electron Microscopy ◽  
Accumulative Roll Bonding ◽  
Tensile Tests ◽  
Total Elongation ◽  
Uniaxial Tensile ◽  
Roll Bonding ◽  
Multilayered Composites ◽  
Scanning Electron

This research studies the structure and mechanical properties of Ni/Ti multilayered composites produced from commercial pure Ni and Ti foils by accumulative roll-bonding technique. To investigate these properties, scanning electron microscopy, Vickers microhardness, and uniaxial tensile tests were conducted at different processing cycles. Studies showed that in terms of structure, Ni and Ti layers maintain their continuity even up to 10 cycles of accumulative roll-bonding. Moreover, the energy-dispersive spectroscopy in scanning electron microscopy detected no deformation induced diffusion or reactive interfacial zones. It was found that by increasing the accumulative roll-bonding cycles, tensile and yield strengths as well as the hardness of the composite enhance and the total elongation reduces continuously.

Using warm accumulative roll bonding method to produce Al-Al2O3 metal matrix composite

2017 ◽  
Vol 231 (5) ◽  
pp. 889-896 ◽  
Author(s):  
Pedram Farhadipour ◽  
M Sedighi ◽  
Mohammad Heydari vini
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Scanning Electron Microscopy ◽  
Metal Matrix Composite ◽  
Accumulative Roll Bonding ◽  
Metal Matrix ◽  
Bonding Process ◽  
Accumulative Roll Bonding Process ◽  
Roll Bonding ◽  
Scanning Electron

In this study, warm accumulative roll bonding process has been used to produce metal matrix composite (Al/1% Al2O3). The microstructure and mechanical properties of composites have been studied after different warm accumulative roll bonding cycles by tensile test, Vickers micro-hardness test and scanning electron microscopy. The scanning electron microscopy results reveal that during higher warm accumulative roll bonding cycles, the layers of alumina particles are broken. It leads to the generation of elongated dense clusters with smaller sizes. This microstructure evolution leads to improve the hardness, strength and elongation during the accumulative roll bonding process. The results demonstrated that the dispersed alumina clusters improve both the strength and toughness of the composites. Also, an extra pass of cold rolling on the final warm accumulative roll bonding product shows the ability to obtain further strength. In general, warm accumulative roll bonding process would allow fabricating metal particle reinforced with high uniformity, good mechanical properties and high bonding strength.

Mechanical Properties of an Accumulative Roll Bonded Aluminium Alloy Composite

2009 ◽  
Vol 618-619 ◽  
pp. 551-554 ◽  
Author(s):  
O. Al-Buhamad ◽  
M. Zakaria Quadir ◽  
Michael Ferry
Keyword(s):  
Mechanical Properties ◽  
Grain Boundaries ◽  
Annealing Temperature ◽  
Sheet Material ◽  
Commercial Purity ◽  
Alloy Composite ◽  
High Angle ◽  
Roll Bonding ◽  
Fine Grained ◽  
Strength And Ductility

A multilayered sheet composite of commercial purity Al and Al-0.3%Sc alloys was produced by accumulative roll bonding. The final sheet material consisted of 64 ultra fine grained layers, each of ~7.8mm in thickness. The as-deformed material was annealed at temperatures ranging from 250 to 350°C to study the changes in microstructure and their associated influence on mechanical properties. The as-deformed structures largely comprised of high angle grain boundaries in the Al layers and low angle grain boundaries in the Al(Sc) layers. During annealing, the structures in the Al(Sc) layers remained unaltered, whereas the Al layers recrystallized rapidly to the full layer thickness. The mechanical properties of the Al-Al(Sc) composite were measured and found to be unique in strength and ductility with annealing temperature having a significant influence on these properties.

Structure and Mechanical Properties of Severely Deformed Cu-Cr-Zr Alloys Produced by Accumulative Roll-Bonding Process

2008 ◽  
Vol 584-586 ◽  
pp. 791-796 ◽  
Author(s):  
Kazuo Kitagawa ◽  
T. Akita ◽  
K. Kita ◽  
Masahide Gotoh ◽  
Naoki Takata ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Electrical Conductivity ◽  
Ambient Temperature ◽  
Accumulative Roll Bonding ◽  
Aging Treatment ◽  
Alloy Sheet ◽  
Proof Stress ◽  
Roll Bonding ◽  
Fine Grained ◽  
Zr Alloys

Aging behavior and mechanical properties of ultra fine grained Cu-Cr-Zr alloy sheet produced by accumulative roll bonding (ARB) process were investigated. A Cu-0.85Cr-0.07Zr (in mass%) alloy was solution treated and then cold-rolled at ambient temperature in the sheet of 1 mm thick. The sheets were heavily deformed by ARB process at ambient temperature up to 5 cycles. The grain size was reduced down to 210 nm and the fraction of high angle grain boundaries (HAGB’s) in the specimen after ARB process was 63%. The proof stress ( σ 0.2) and elongation were 540 MPa and 10%, respectively. Due to the aging treatment, a little grain growth took place (240 nm) and the fraction of HAGB’s was increased to 67%. The proof stress and elongation of the aged one increased to 605 MPa and 15%, respectively. It was noteworthy that the electrical conductivity remarkably increased from 35% to 79%IACS by the aging treatment. It was concluded that the aging treatment after ARB process enhanced not only the mechanical properties but also the electrical conductivity in the Cu-Cr-Zr alloys.

Evaluation of mechanical properties of 1050-Al reinforced with SiC particles via accumulative roll bonding process

2018 ◽  
Vol 53 (2) ◽  
pp. 209-218 ◽  
Author(s):  
Adel Fathy ◽  
Dalia Ibrahim ◽  
Omayma Elkady ◽  
Mohammed Hassan
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Scanning Electron Microscopy ◽  
Field Emission ◽  
Microstructural Evolution ◽  
Accumulative Roll Bonding ◽  
Bonding Process ◽  
Accumulative Roll Bonding Process ◽  
Roll Bonding ◽  
Scanning Electron

Accumulative roll bonding was successfully used as a severe plastic deformation method to produce Al–SiC composite sheets. The effect of the addition of SiC particles on the microstructural evolution and mechanical properties of the composites during accumulative roll bonding was studied. The Al–1, 2 and 4 vol.% SiC composite sheets were produced by accumulative roll bonding at room temperature. Monolithic Al sheets were also produced by the accumulative roll bonding process to compare with the composite samples. Field emission scanning electron microscopy revealed that the particles had a random and uniform distribution in the matrix by the last accumulative roll bonding cycles, and strong mechanical bonding takes place at the interface of the particle matrix. This microstructural evolution led to improvement in the hardness, strength and elongation during the accumulative roll bonding process. It is also shown that by increasing the volume fraction of particles up to 4 vol.% SiC, the yield and tensile strengths of the composite sheets increased more than 1.2 and 1.3 times the accumulative roll-bonded aluminum sheets, respectively. Field emission scanning electron microscopy observation of fractured surface showed that the failure broken of composite was shear ductile rupture.

scholarly journals Tool Optimization of Friction Stir Processing of ZE41A Rare Earth Magnesium Alloys

2019 ◽  
Vol 8 (2) ◽  
pp. 6062-6066
Keyword(s):  
Mechanical Properties ◽  
Wear Behavior ◽  
Wear Properties ◽  
Friction Stir ◽  
Pin Geometry ◽  
Tool Tilt Angle ◽  
Pin On Disk ◽  
Tool Pin ◽  
Tool Optimization ◽  
Scanning Electron

In this study, the effect of tool pin geometry on the microstructure and mechanical properties friction stir processed (FSP) specimens of ZE41 magnesium alloy were investigated. The four different tool pin profiles such as triangular, square, taper cylindrical and threaded taper cylindrical with process parameters of 1120 RPM, 25mm/min and tool tilt angle 10 were considered. Microstructures of the processed specimens are examined using scanning electron microscope (SEM) and the wear behavior was observed using pin on disk tribometer. The consequences show that the triangular tool pin produced defect free joints, finest microstructure, higher mechanical and wear properties.

Sol–gel coated B4C particles reinforced 2024 Al matrix composites

2011 ◽  
Vol 226 (2) ◽  
pp. 159-169 ◽  
Author(s):  
A Mazahery ◽  
M O Shabani
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Base Alloy ◽  
Sol Gel ◽  
Weight Fraction ◽  
Al Alloy ◽  
Wear Properties ◽  
Weight Losses ◽  
Hard Particles ◽  
B4c Particles

In this study, mechanical and wear properties of unreinforced 2024 Al alloy and composites with different vol.% of coated and uncoated boron carbide particles were experimentally investigated. It is seen that incorporation of hard particles to 2024 aluminium alloy contributes to the improvement of the mechanical properties and wear resistance of the base alloy to a great extent. Hard particles take part in resisting penetration, cutting, and grinding by the abrasive and protect the surface. It is noted that the increase in the weight fraction of B4C particles improves the wear resistance of the composites. Based on the weight loss data, composites with 30 vol.% B4C particles have the highest wear resistance among all the tested samples and unreinforced aluminium alloys give the lowest wear resistance. The results show that TiB2 coating of the B4C particles improved the mechanical properties. It is observed that the weight losses of the coated composites are less than those of the composites without coating.

Wear Resistance of SPD-Processed Alloys

2010 ◽  
Vol 667-669 ◽  
pp. 1095-1100
Author(s):  
Nong Gao ◽  
Chuan Ting Wang ◽  
Robert J.K. Wood ◽  
Terence G. Langdon
Keyword(s):  
Plastic Deformation ◽  
Wear Resistance ◽  
Severe Plastic Deformation ◽  
Accumulative Roll Bonding ◽  
Review Paper ◽  
Roll Bonding ◽  
Fine Grained ◽  
Work Related ◽  
Angular Pressing ◽  
Deformation Processes

Various different severe plastic deformation processes (SPD) have been developed to produce ultra-fine grained (UFG) materials during the last two decades. One very important material property that the UFG materials should have for structural materials application is good wear resistance. This review paper presents some recent work related to the wear resistance of materials processed by SPD, in particular for alloys processed by using equal-channel angular pressing (ECAP) and accumulative roll-bonding (ARB).

Sign in / Sign up

Export Citation Format

Share Document