Effect of microstructure on the adhesion strength of TiB  coating on Ti6Al4V substrate

Wu, Bi; Gao, Siyang; Xue, Weihai; Shu, Li; Duan, Deli

doi:10.1016/j.ceramint.2020.10.078

Cited by 10 publications

(1 citation statement)

References 42 publications

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“…Figure 5 shows the XRD patterns of the coatings. The TiB 2 monolayer coating (Q = 1.0) presented a hexagonal closed packed (HCP) structure with (001), ( 101) and (002) peaks [44], and the (001) preferred orientation was observed. As for the TiB 2 /Cr multilayer coatings, with the decrease of Q (increasing of Cr interlayer thickness), the intensity of TiB 2 peaks weakened, but the TiB 2 (001) peak was still visible even at Q = 0.3.…”

Section: Finite Element Modeling Stress Distributionmentioning

confidence: 99%

Effect of thickness ratio on mechanical properties and tribological behavior of TiB2/Cr multilayer coatings

Wu,

Gao,

Xue

et al. 2024

Preprint

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The design of TiB2-based coating with Cr interlayer can offer an efficient way to improve its mechanical properties and tribological performance. The stress distribution of the TiB2/Cr multilayer coatings was optimized by varying the ceramic-metal thickness ratio (Q). As Q decreased from 1.0 to 0.5, the hardness of the deposited TiB2/Cr multilayer coatings drop from 30.3 GPa to 20.2 GPa. However, their fracture toughness and adhesion strength are promoted. The multilayer coating with Q = 0.5 exhibited the best toughness, crack propagation resistance (CPRs), and the smallest equivalent stress area, resulting in the best wear resistance. The wear mechanism of the TiB2 interlayer is primarily abrasive, while that of the Cr interlayer is adhesive. However, reducing Q further to 0.3 led to decreased wear resistance due to low hardness and significant stress concentration. This indicates that there is an optimal balance between hardness, toughness, and stress distribution for achieving improved wear resistance for the multilayer design. Additionally, a notable correlation was found between CPRs and the wear resistance of TiB2/Cr multilayer coatings. CPRs could serve as a reliable predictor for the tribological performance of the ceramic coatings.

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Section: Finite Element Modeling Stress Distributionmentioning

confidence: 99%

Effect of thickness ratio on mechanical properties and tribological behavior of TiB2/Cr multilayer coatings

Wu,

Gao,

Xue

et al. 2024

Preprint

Self Cite

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High-Speed Rubbing Behavior of Abrasive Coating Coated on Titanium Alloy Blade Tips

Gu,

Yang,

Zhang

et al. 2024

Acta Metall. Sin. (Engl. Lett.)

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Designing TiB2/Cr multilayer coatings on Ti6Al4V substrate for optimized wear resistance

Wu,

Gao,

Xue

et al. 2024

Surf. Sci. Tech.

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The difference in mechanical properties between the TiB2 coating and the Ti6Al4V substrate can deteriorate the wear resistance of the TiB2 coating. To enhance the TiB2-based coating’s ability to deform in coordination with the ductile Ti6Al4V substrate and improve its tribological performance, the TiB2/Cr multilayer coatings were designed and deposited on Ti6Al4V substrates by magnetron sputtering. Results reveal that the FEM stress distribution of the TiB2/Cr multilayer coatings was optimized by varying the ceramic–metal thickness ratio (Q). As Q decreased from 1.0 to 0.5, the fracture toughness and adhesion strength of the coatings improved. The multilayer coating with Q = 0.5 exhibited the best toughness, crack propagation resistance (CPRs), and the smallest equivalent stress area, leading to a threefold enhancement in wear resistance compared to the TiB2 monolayer coating. However, further reduction of Q to 0.3 diminished wear resistance due to low hardness and significant stress concentration. Thus, there is an optimal balance between hardness, toughness, and stress distribution for achieving improved wear resistance in the multilayer design. Moreover, a notable correlation was observed between CPRs and the wear resistance of TiB2/Cr multilayer coatings.

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Effect of microstructure on the adhesion strength of TiB coating on Ti6Al4V substrate

Cited by 10 publications

References 42 publications

Effect of thickness ratio on mechanical properties and tribological behavior of TiB2/Cr multilayer coatings

Effect of thickness ratio on mechanical properties and tribological behavior of TiB2/Cr multilayer coatings

High-Speed Rubbing Behavior of Abrasive Coating Coated on Titanium Alloy Blade Tips

Designing TiB2/Cr multilayer coatings on Ti6Al4V substrate for optimized wear resistance

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