Aluminium composites prepared by laser cladding assisted by friction stir processing

Yanni Wei; Fu Sun; Huaibao Gao; Xiao Peng; Juntao Zou

doi:10.1088/2053-1591/abcac3

Materials Research Express (Jan 2020)

Aluminium composites prepared by laser cladding assisted by friction stir processing

Yanni Wei,
Fu Sun,
Huaibao Gao,
Xiao Peng,
Juntao Zou

Affiliations

Yanni Wei: ORCiD; Department of Materials Science and Engineering, Xi’an University of Technology , 5 South Jinhua Road, Xi’an 710048, People’s Republic of China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi’an University of Technology , Xi’an, Shaanxi 710048, People’s Republic of China
Fu Sun: Shaanxi Zhituo Solid State Addit Mfg Technol Co L, Proc R&D Dept, Weinan 714000, People’s Republic of China
Huaibao Gao: Department of Materials Science and Engineering, Xi’an University of Technology , 5 South Jinhua Road, Xi’an 710048, People’s Republic of China
Xiao Peng: Department of Materials Science and Engineering, Xi’an University of Technology , 5 South Jinhua Road, Xi’an 710048, People’s Republic of China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi’an University of Technology , Xi’an, Shaanxi 710048, People’s Republic of China
Juntao Zou: ORCiD; Department of Materials Science and Engineering, Xi’an University of Technology , 5 South Jinhua Road, Xi’an 710048, People’s Republic of China; Shaanxi Province Key Laboratory for Electrical Materials and Infiltration Technology, Xi’an University of Technology , Xi’an, Shaanxi 710048, People’s Republic of China

DOI: https://doi.org/10.1088/2053-1591/abcac3
Journal volume & issue: Vol. 7, no. 11
p. 116521

Abstract

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A laser cladding and friction stir processing hybrid method was employed to produce an Al matrix composite layer. The microstructure, phase composition, microhardness and conductivity of the composites were investigated. A laser cladding layer with a thickness of approximately 200 μ m was prepared on a 1060 aluminium plate and it was broken up and distributed on the Al matrix after friction stir processing. The particle/Al interfaces exhibited extremely good interfacial integrity. Microstructural observations revealed that an obvious in situ reaction occurred at the particle/Al interfaces, which effectively improved the bonding between the reinforcement phase and the matrix. TEM analysis and selected area diffraction enabled the identification of the intermetallic compounds and confirmed them to be Al _5 Fe _2 and Al _3 Fe. The average microhardness values of the friction stir processed composites reached approximately 85 HV. The electrical resistivity of the friction stir processed composites is slightly higher than that of the aluminium matrix.

Published in Materials Research Express

ISSN: 2053-1591 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology
Website: https://iopscience.iop.org/journal/2053-1591

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