Mechanical properties of ultrafine grained 5052 Al alloy produced by accumulative roll-bonding and cryogenic rolling

2006 ◽  
Vol 12 (1) ◽  
pp. 7-12 ◽  
Author(s):  
H. R. Song ◽  
Y. S. Kim ◽  
W. J. Nam
Keyword(s):  
Mechanical Properties ◽  
Accumulative Roll Bonding ◽  
Al Alloy ◽  
Roll Bonding ◽  
Cryogenic Rolling ◽  
Ultrafine Grained

Mechanical Properties and Aging Behavior of Ultrafine Grained Al-Ag Alloy Fabricated by Accumulative Roll-Bonding

2014 ◽  
Vol 794-796 ◽  
pp. 851-856
Author(s):  
Tadashiege Nagae ◽  
Nobuhiro Tsuji ◽  
Daisuke Terada
Keyword(s):  
Mechanical Properties ◽  
Grain Refinement ◽  
Accumulative Roll Bonding ◽  
Precipitation Hardening ◽  
Tensile Elongation ◽  
Solution Treatment ◽  
High Strength ◽  
Subsequent Aging ◽  
Roll Bonding ◽  
Ultrafine Grained

Accumulative roll-bonding (ARB) process is one of the severe plastic deformation processes for fabricating ultrafine grained materials that exhibit high strength. In aluminum alloys, aging heat treatment has been an important process for hardening materials. In order to achieve good mechanical properties through the combination of grain refinement hardening and precipitation hardening, an Al-4.2wt%Ag binary alloy was used in the present study. After a solution treatment at 550°C for 1.5hr, the alloy was severely deformed by the ARB process at room temperature (RT) up to 6 cycles (equivalent strain of 4.8). The specimens ARB-processed by various cycles (various strains) were subsequently aged at 100, 150, 200, 250°C, and RT. The hardness of the solution treated (ST) specimen increased by aging. On the other hand, hardness of the ARB processed specimen decreased after aging at high temperatures such as 250°C. This was probably due to coarsening of precipitates or/and matrix grains. The specimen aged at lower temperature showed higher hardness. The maximum harnesses achieved by aging for the ST specimen, the specimens ARB processed by 2 cycles, 4 cycles and 6 cycles were 55HV, 71HV, 69HV and 65HV, respectively. By tensile tests it was shown that the strength increased by the ARB process though the elongation decreased significantly. However, it was found that the tensile elongation of the ARB processed specimens was improved by aging without sacrificing the strength. The results suggest that the Al-Ag alloy having large elongation as well as high strength can be realized by the combination of the ARB process for grain refinement and the subsequent aging for precipitation hardening.

Review on Accumulative Roll Bonding (ARB) Techniques for Improving the Mechanical Properties of Multi-Layered Materials

2020 ◽  
Vol 979 ◽  
pp. 84-88
Author(s):  
A. Arun ◽  
Lakshmanan Poovazhgan
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Accumulative Roll Bonding ◽  
Nanocrystalline Structure ◽  
Hardness Test ◽  
Roll Bonding ◽  
Transmission Electron ◽  
Ultrafine Grained ◽  
Materials Used ◽  
Number Of Passes

Accumulative Roll Bonding (ARB) is one among the techniques in Severe Plastic Deformation (SPD) which is used to produce ultrafine grains and nanocrystalline structure in the materials used. Tensile test, micro hardness test, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and bending tests are the various tests carried out to understand the grain refinement of ARB materials. ARB is carried out in homogenous and heterogeneous materials to bring out the useful applications of ultrafine grained materials. ARB process mainly carried out in room, warm and hot temperature. The variations in the structure of the material are obtained by changing the load applied on the roller and by increasing the number of passes. This review paper brings out how the mechanical properties of the materials are improved by ARB process

scholarly journals Accumulative Roll Bonding for Improvement mechanical properties of Aluminum based Composite

INSIST ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 184
Author(s):  
Agus Pramono
Keyword(s):  
Mechanical Properties ◽  
Accumulative Roll Bonding ◽  
Industrial Process ◽  
Aluminum Plate ◽  
Surface Binding ◽  
Roll Bonding ◽  
Ultrafine Grained ◽  
Mean Grain Size ◽  
Lower Melting Point ◽  
Multiple Cycles

The Aluminum has special properties such as light weight, ductile and a lower melting point. It has very suitable for applied as composite material, with ceramic as reinforcement. Accumulative roll bonding (ARB) is part of technology of Severe Plastic Deformation (SPD) that has been developed of manufacturing process for metals, alloys and composites as well. It has a potential becoming an industrial process to produce composite and ultrafine-grained (UFG) metal sheets. In this research, the development of aluminum-based composites is made by SPD technology using the ARB method on aluminum plate sheets with boron carbide (B4C) as reinforcement, is expected to improve its mechanical properties along with the rules of microstructure analysis. To get of the UFG metallic materials where the mean grain size must be smaller than 1μm are expected can be exhibit excellent mechanical properties. The ARB process consists of multiple cycles of rolling, cutting, stacking and solid-state deformation bonding. Two plates were prepare for the ARB sample process, cleaning uses acetone liquid to prevent attachment of dust and dirt on the surface to be made in contact with other samples. Acetone and grinding to produce a rough surface to facilitate the surface binding process between samples, B4C powder is sprinkled between the centers of aluminum plate surface and stacked going together.

Microstructural evolution and mechanical properties of ultrafine grained AA2024 processed by accumulative roll bonding

2017 ◽  
Vol 93 (1-4) ◽  
pp. 681-689 ◽  
Author(s):  
Ramin Khatami ◽  
Arash Fattah-alhosseini ◽  
Yousef Mazaheri ◽  
Mohsen K. Keshavarz ◽  
Meysam Haghshenas
Keyword(s):  
Mechanical Properties ◽  
Microstructural Evolution ◽  
Accumulative Roll Bonding ◽  
Roll Bonding ◽  
Ultrafine Grained
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