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Published in: Metals and Materials International 7/2021

04-06-2020

Wear Resistance of Different Bionic Structure Manufactured by Laser Cladding on Ti6Al4V

Authors: Mengyao Wu, Xiaohong Zhan, Hengchang Bu, Lijun Liu, Yuanzeng Song, Yaping Li

Published in: Metals and Materials International | Issue 7/2021

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Abstract

In this study, the laser cladding system with an IPG YLS-6000 fiber laser was used, and the WC–Ti6Al4V powder reinforced composite coatings on Ti6Al4V titanium alloy with various bionic structures were innovatively fabricated. The microstructures and surface damage behavior of the coatings were characterized by scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffraction. Additionally, the wear resistance of different bionic structures was evaluated, which had not been comprehensively explored in the published literature. The results indicated that the un-melted WC particles in the coatings act as a hard reinforcement, avoiding serious wear of the coating. In addition, the hard coatings exhibit excellent deformation resistance and the soft substrate cushion the shear stress. So when the “Ratio”, which refers to the laser cladding area to sample area, is between 0.25 and 0.3, the sample has the highest wear resistance. Furthermore, the “Dot + Line” bionic structure has the best wear resistance compared with other structures. The separated line units and the addition of dot units can improve the stress concentration state of bionic structure are conducive to release the stress to the substrate under the cladding layer.

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Literature
Metadata
Title
Wear Resistance of Different Bionic Structure Manufactured by Laser Cladding on Ti6Al4V
Authors
Mengyao Wu
Xiaohong Zhan
Hengchang Bu
Lijun Liu
Yuanzeng Song
Yaping Li
Publication date
04-06-2020
Publisher
The Korean Institute of Metals and Materials
Published in
Metals and Materials International / Issue 7/2021
Print ISSN: 1598-9623
Electronic ISSN: 2005-4149
DOI
https://doi.org/10.1007/s12540-020-00765-y

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