Abstract
Nowadays, the need to use multilayered materials in various industries due to their unique properties, such as resistance to wear, corrosion, and weight lightening, is augmenting. In this paper, the production of bimetallic aluminum (AA 1050)/commercially pure Cu tubes by cold parallel tube-shaped channel angular pressing (PTCAP) process was considered for the first time. The PTCAP process was performed in three passes, and the bonding properties, microstructure, and microhardness were evaluated in each pass. The microstructure and mechanical properties of PTCAPed samples were examined by optical microscopy (OM), scanning electron microscope (SEM), energy-dispersive X-ray spectroscopy (EDS), Vickers microhardness test, and shear punch test. According to the results, the Cu and Al PTCAPed tubes’ microhardness was improved by 125 and 87%, respectively. Besides, after three passes, the mean size of grains of the copper tube decreased from 58 to 6 μm. Therefore, based on the Hall–Petch relationship, the main reason for the increase in microhardness can be stated as the significant reduction in grain size. According to the shear punch test results, after three passes of PTCAP, the shear strength between the two layers was increased by 208%. Finally, both tubes were well bonded as a bilayer tubes at higher passes.
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Alaie, M.A., Kasaeian-Naeini, M., Hashemi, R. et al. Fabrication of AA1050/CP-Cu Bimetallic Tubes using Parallel Tube-Shaped Channel Angular Pressing Technique and Assessing its Mechanical Properties and Microstructure. Trans Indian Inst Met 76, 1937–1948 (2023). https://doi.org/10.1007/s12666-023-02897-2
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DOI: https://doi.org/10.1007/s12666-023-02897-2