On the cutting performance of TiC-Cr3C2 compound ceramic tool.

Sentoku, Eiichi; Kumagai, Mikito; Fujimura, Yoshio; Hachisuka, Takeji

doi:10.2497/jjspm.37.474

Cited by 1 publication

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“…14,15 However, in the interrupted cutting test, the TiC-Cr 3 C 2 ceramic cutting tool suffered from the chipping failure due to the insufficient toughness. 14,15 In order to improve the toughness of the carbide ceramic cutting tool, nickel and/or cobalt are used as binder toughening phase. The comparative study on the cutting performance of TiC-Mo 2 C-Ni and TiC-TiN-Mo 2 C-Ni ceramic tools for ISO C45E4 steel showed that the TiC-Mo 2 C-Ni ceramic tool exhibited high cutting performance for low speed (cutting speed of 130 m/min) cutting, whereas the TiC-TiN-Mo 2 C-Ni ceramic tool was more suitable for high-speed cutting (cutting speed of 250 m/min).…”

Section: Introductionmentioning

confidence: 99%

“…Traditionally, transition metal monocarbides are widely used in the field of cutting tools 14–19 . Sentoku et al.…”

Section: Introductionmentioning

confidence: 99%

“…[14][15][16][17][18][19] Sentoku et al developed TiC-Cr 3 C 2 ceramic cutting tools with better cutting performance than the TiC-reinforced Al 2 O 3 -based ceramic tool and Ti(C,N)-based cermet tool in continuous cutting test on carbon steel. 14,15 However, in the interrupted cutting test, the TiC-Cr 3 C 2 ceramic cutting tool suffered from the chipping failure due to the insufficient toughness. 14,15 In order to improve the toughness of the carbide ceramic cutting tool, nickel and/or cobalt are used as binder toughening phase.…”

Section: Introductionmentioning

confidence: 99%

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High‐entropy carbide‐based ceramic cutting tools

2022

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In this study, a novel high-entropy carbide-based ceramic cutting tool was developed. The cutting performance of three kinds of high-entropy carbide-based ceramic tools with different mechanical properties for the ISO C45E4 steel were evaluated. Although the pure (Ti 0.2 Zr 0.2 Nb 0.2 Ta 0.2 Mo 0.2 )C 0.8 ceramic cutting tool exhibited the highest hardness of 25.06 ± 0.32 GPa, the cutting performance was poor due to the chipping and catastrophic failure caused by the low toughness (2.25 ± 0.27 MPa m 1/2 ). The (Ti 0.2 Zr 0.2 Nb 0.2 Ta 0.2 Mo 0.2 )C 0.8 -15 vol% cobalt cutting tool with highest fracture toughness (6.37 ± 0.24 MPa m 1/2 ) and lowest hardness (17.29 ± 0.79 GPa) showed the medium cutting performance due to the low wear resistance caused by the low hardness. The (Ti 0.2 Zr 0.2 Nb 0.2 Ta 0.2 Mo 0.2 )C 0.8 -7.7 vol% cobalt cutting tool showed the longest effective cutting life of ∼67 min due to the high wear resistance and chipping resistance caused by the high hardness (21.05 ± 0.72 GPa), high toughness (5.35 ± 0.51 MPa m 1/2 ), and fine grain size (0.60 ± 0.15 µm). The wear mechanisms of the cobalt-containing (Ti 0.2 Zr 0.2 Nb 0.2 Ta 0.2 Mo 0.2 )C 0.8 ceramic cutting tools included adhesive wear and abrasive wear and oxidative wear. This research indicated that the high-entropy carbide-based ceramics with high hardness and high toughness have potential use in the field of cutting tool application.

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