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Open AccessArticle

Microstructure and Mechanical Performance of Graphene Nanosheets Reinforced Nickel-Based Superalloy FGH95 Composite

1
School of Materials Science and Engineering, Beihang University, Beijing 100191, China
2
Science and Technology on Advanced High Temperature Structural Materials Laboratory, AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
*
Author to whom correspondence should be addressed.
Nanomaterials 2020, 10(1), 100; https://doi.org/10.3390/nano10010100
Received: 3 December 2019 / Revised: 27 December 2019 / Accepted: 28 December 2019 / Published: 3 January 2020
(This article belongs to the Section Nanocomposite Thin Films and 2D Materials)
Graphene nanosheet (GNS)-reinforced nickel-based superalloy FGH95 (GNSs/FGH95) matrix composites are prepared via the powder metallurgy approach. Scanning electron microscopy, transmission electron microscope and static tensile tests are used to investigate the microstructure and mechanical properties of GNS-reinforced nickel-based superalloy FGH95. Mechanical properties and failure behavior at room temperature and high temperature are studied. Static tensile tests at room temperature and high temperature confirm that the strength and plasticity of GNS-reinforced FGH95 have been improved, compared to the unreinforced superalloy. The results show that with the increase of temperature, the failure behavior of GNSs/FGH95 composite changes from the interface debonding of the GNSs/matrix to the failure of the FGH95 matrix. This work suggests that GNSs/FGH95 composite has great potential to be a structural material in aero-engine fields.
Keywords: nickel based superalloy; graphene nanosheet; mechanical properties; failure behavior nickel based superalloy; graphene nanosheet; mechanical properties; failure behavior
MDPI and ACS Style

Gao, Y.; Zou, J.; Wang, X.; Wang, X.; Yang, J.; Wang, H. Microstructure and Mechanical Performance of Graphene Nanosheets Reinforced Nickel-Based Superalloy FGH95 Composite. Nanomaterials 2020, 10, 100.

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