Fabrication And Mechanical Properties Of A Nanostructured Complex Aluminum Alloy By Three-Layer Stack Accumulative Roll-Bonding

Lee, S.-H.; Lee, S.R.

doi:10.1515/amm-2015-0096

Cited by 4 publications

(1 citation statement)

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“…In the ARB process, a 50% rolled sheet is cut into two, then stacked to the initial dimension, and then rolled again [7]. It is a severe plastic deformation technique, has a great advantage in that both grain refinement and high strengthening can be attained without adding any alloying elements or ceramic particles and a change in the dimension of the materials [8]. Grain refinement via severe plastic deformation (SPD) techniques is a promising route for preparing different nanostructured (NS) and ultrafinegrained (UFG) materials, especially with regard to pure metals, for a variety of applications, such as in chemical, metallurgical, and biological engineering as well as the nuclear industry [9].…”

Section: Introductionmentioning

confidence: 99%

Investigating the Effect of Al- 1050-H4 Sample Position on Grain Size and Mechanical Properties During Accumulative Roll Bonding Process

Pita¹,

Sob²

2022

IJETAE

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— Nanocrystalline material polycrystals with grain sizes less than 100 nm—have the unique mechanical properties highly desirable for a wide range of applications. This paper compares the microstructure, grain sizes and hardness of top and bottom Al 1050-H4 rolled samples through an accumulative roll bonding process. The samples were rolled once at the speed of 9 rpm and an applied load of 5 ton. Rolled samples were characterised by optical microscopy and a linear intercept method based on the ASTM E122-12 standard was followed. The hardness test was performed on both samples following the ASTM E384 test standard. Simulation was performed using an Auto Desk Inventor and the mesh sizes of the samples were correlated with their grain sizes to analyse the material properties during the accumulative roll bonding (ARB). The obtained results show more property enhancement under the applied load and strain during the ARB process. The bottom sample was more refined and had higher mechanical properties (hardness) compared to the top sample. The average grain size of the bottom sample was 42.6 µm , and 47.6 µm for the top sample. The hardness results were 51.28 HV for the bottom sample and 42.08 HV for the top sample. From the simulation, it was observed that the elongation was useful, without any possibility of material failure in both 42.6 µm and 47.6 µm microstructural analyses. It was also observed that the elongation during the ARB process occurred without any material defects during the grain refining process. The length of the elongation during the ARB process was also revealed during the simulation process. . Keywords—ARB, properties, elongation, material, samples.

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Section: Introductionmentioning

confidence: 99%