Interface evolution and mechanical properties of nickel coated graphene nanoflakes/pure titanium matrix composites

Ge, Y.X.; Zhang, H.M.; Cheng, Xingwang; Fan, Qunbo; Zhang, Zhao Hui; Mu, Xiaonan; Liu, L.; Liu, Yifan; Wang, B.

doi:10.1016/j.jallcom.2020.157157

Cited by 15 publications

(3 citation statements)

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“…For all specimens, TiC was observed near the Ti side due to the dissolution of C atoms in Ti base metal. Ge et al [ 19 ] studied TiC regions were informed between coating and matrix, due to the difference in diffusion rate of Ni atoms and C atoms. Hence, a thin coating of TiC between Ni‐P@GNFs and matrix was detected in Figure 6c,d.…”

Section: Resultsmentioning

confidence: 99%

“…The dissolution of nickel–phosphorus coating was caused by the diffusion of nickel atoms into titanium matrix during powder metallurgy processing. [ 19,25 ]…”

Section: Resultsmentioning

confidence: 99%

“…[ 14–18 ] Although GNFs can significantly enhance the properties of the metal matrix, there are still two major challenges for GNFs/TMCs. [ 19 ] First, the Van der Waals force between GNFs leads to the agglomeration and clusters of reinforcements, which increases the brittleness of GNFs/TMCs; second, the interfacial reaction between GNFs and matrix induces the formation of brittle TiC particles, which may increase cracking risk and decrease the plasticity of GNFs/TMCs. [ 20 ] Hence, the additional coating was expected to form on the surface of GNFs to control interaction and disperse GNFs.…”

Section: Introductionmentioning

confidence: 99%

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Role of Powder Metallurgical Processing on Mechanical Response of Nickel–Phosphorus‐Coated Graphene Nanoflakes/Titanium Matrix Composites

Cao

et al. 2022

Adv Eng Mater

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Herein, the nickel–phosphorus‐coated graphene nanoflakes/Ti6Al4V composites (Ni‐P@GNFs/Ti6Al4V composites) are fabricated by spark plasma sintering (SPS) and hot isostatic pressing (HIP), respectively. The results show that the Ni‐P@GNFs/Ti6Al4V composites prepared by SPS, in which the agglomeration of Ni‐P@GNFs is weak and the size of α phase is small, possess improved mechanical properties relative to those of the Ni‐P@GNFs/Ti6Al4V composites prepared by HIP. The compressive yield strengths of Ni‐P@GNFs/Ti6Al4V composites prepared by SPS enhance from 1116.29 MPa (0 wt% GNFs) to 1367.33 MPa (1 wt% GNFs), and microhardness increases from 302.83 to 479.43 HV. The Ni‐P@GNFs/Ti6Al4V composites prepared by HIP reach a yield strength of 1299.59 MPa and microhardness of 410.10 HV. In addition, serious agglomeration of GNFs leads to a significant drop in ductility (from 47.47% to 25.76%) in the Ni‐P@GNFs/Ti6Al4V composites prepared by HIP.

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Section: Resultsmentioning

confidence: 99%

“…The dissolution of nickel–phosphorus coating was caused by the diffusion of nickel atoms into titanium matrix during powder metallurgy processing. [ 19,25 ]…”

Section: Resultsmentioning

confidence: 99%