Microstructure and damping capacity of 7075 aluminum matrix composite enhanced by 6061 aluminum particles layer

HUANG Wenyi; JIANG Hongjie; WANG Yibo; LIU Chongyu; HUANG Hongfeng

doi:10.13801/j.cnki.fhclxb.20210309.004

Volume 38 Issue 12

Dec. 2021

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Article Navigation > Acta Materiae Compositae Sinica > 2021 > 38(12): 4220-4227

HUANG Wenyi, JIANG Hongjie, WANG Yibo, et al. Microstructure and damping capacity of 7075 aluminum matrix composite enhanced by 6061 aluminum particles layer[J]. Acta Materiae Compositae Sinica, 2021, 38(12): 4220-4227. doi: 10.13801/j.cnki.fhclxb.20210309.004

Citation:

HUANG Wenyi, JIANG Hongjie, WANG Yibo, et al. Microstructure and damping capacity of 7075 aluminum matrix composite enhanced by 6061 aluminum particles layer[J]. Acta Materiae Compositae Sinica, 2021, 38(12): 4220-4227. doi: 10.13801/j.cnki.fhclxb.20210309.004

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Microstructure and damping capacity of 7075 aluminum matrix composite enhanced by 6061 aluminum particles layer

doi: 10.13801/j.cnki.fhclxb.20210309.004

Education Ministry Key Laboratory of New Processing Technology for Nonferrous Metal Materials, School of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China

Received Date: 2020-12-15
Accepted Date: 2021-02-09

Available Online: 2021-03-10

Publish Date: 2021-12-01

Abstract

Abstract

The 6061p/7075 aluminum matrix (6061p/7075Al) composite with particles layer structure was prepared by hot rolling to improve the damping capacity of 7075 aluminum alloy. The microstructure of 6061p/7075Al layered composites was analyzed by OM, SEM, EDS and XRD, the mechanical properties and damping behavior of the 6061p/7075Al layered composites were analyzed by universal mechanical testing machine and dynamic thermo-mechanical analyzer respectively. The results show that there are a large number of interparticle interfaces and micro-pores in the 6061 aluminum particles layer, and the interface between the 6061 aluminum particles layer and the 7075 aluminum matrix is well combined without interface reaction. The internal friction of 6061p/7075Al layered composites and matrix material increases with the increase of temperature and strain variables, respectively. The damping capacity of the 6061p/7075Al layered composites is obviously better than that of 7075 aluminum matrix. At 360℃, the internal friction of 6061p/7075Al layered composites is as high as 0.117, which is 149% higher than that of 7075 aluminum matrix. The storage modulus of 6061p/7075Al layered composites and matrix material decreases with the increase of temperature and strain variables, respectively. At 30℃, the storage modulus of the 6061p/7075Al layered composites is 38601 MPa, which is 16% higher than that of 7075 aluminum matrix.
- aluminum particles layer,
- 7075 aluminum alloy,
- aluminum matrix composite,
- microstructure,
- damping capacity
Long Abstrsct
Innovation Points

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References(27)

References

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