Microstructure evolution and mechanical properties of the AA2024/AA5083 ultra-fine grained composite fabricated via accumulative roll bonding (ARB) method

Nikoo Saeid Sajjadi; Qods Fathallah; Yousefieh Mohammad

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Microstructure evolution and mechanical properties of the AA2024/AA5083 ultra-fine grained composite fabricated via accumulative roll bonding (ARB) method

机译：Microstructure evolution and mechanical properties of the AA2024/AA5083 ultra-fine grained composite fabricated via accumulative roll bonding (ARB) method

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In the present work, the dissimilar laminated composite (DLC) of the AA2024 and AA5083 aluminum alloys and similar laminated composite (SLC) were produced by four cycles of the accumulative roll bonding (ARB) process. In the fourth ARB cycle of the AA2024/AA5083 DLC, two surfaces with AA2024 composition were put on each other. The microstructural evolution revealed an ultrafine-grained (UFG) structure with an average grain size of 500 nm. The dislocation density was found to increase with the strain during the ARB process, which then reached a saturated level. Also, the microhardness of DLC was more than the SLC-processed specimens due to work hardening and precipitates effects. Moreover, the results showed that changes in the sequence of DLC layers considerably enhanced the tensile strength and elongation. The UTS of the AA5083 SLC, AA2024 SLC, and AA2024/5083 DLC were obtained at 589 MPa, 686 MPa, and 667 MPa, respectively.

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《Journal of Materials Research》 |2023年第9期|2519-2533|共15页
作者
Nikoo Saeid Sajjadi; Qods Fathallah; Yousefieh Mohammad;
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作者单位

Semnan Univ;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种英语
中图分类工程材料学;
关键词
Dissimilar laminated composite (DLC); Similar laminated composite (SLC); Accumulative roll bonding (ARB); Ultrafine-grained (UFG); Electron backscatter diffraction (EBSD); LAMINATED METAL COMPOSITES; AL-CU-MG; TENSILE DEFORMATION; HEAT-TREATMENT; ALUMINUM; ALLOY; DUCTILITY; STRENGTH; BEHAVIOR; TEXTURE;

Microstructure evolution and mechanical properties of the AA2024/AA5083 ultra-fine grained composite fabricated via accumulative roll bonding (ARB) method

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