Mechanical properties and cutting performance of nanocomposite Cr–Si–N coated tool for green machining

Kim, C.; Kang, Myung Chang; Kim, J.S.; Kim, K.H.; Shin, Bo Sung; Je, Tae-Jin

doi:10.1016/j.cap.2008.08.054

Cited by 18 publications

(7 citation statements)

References 11 publications

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“…Therefore, the coating surface roughness was considerably affected by the Si content in CrN coating. These results agree with the work of Kim et al [ 23 ], they reported an optimum hardness for a fine composite CrSiN coating due to the formation of an amorphous Si 3 N 4 capable of causing grain boundary hardening and, consequently, enhancing cohesive energy of the interphase boundaries within the coatings [ 23 ]. Furthermore, Fig.…”

Section: Resultssupporting

confidence: 92%

Structural and mechanical properties of Si-doped CrN coatings deposited by magnetron sputtering technique

Vyas¹,

Aliyu²

2023

Heliyon

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Section: Resultssupporting

confidence: 92%

Structural and mechanical properties of Si-doped CrN coatings deposited by magnetron sputtering technique

Vyas¹,

Aliyu²

2023

Heliyon

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“…Hard coatings of nanometre-sized grains of a transition metal nitride, such as CrN, separated by an amorphous grain boundary film, such as Si 3 N 4 , show a greater resistance to erosion by particles 1 , semi-dry wear in ball-on-disc tests 2 , dry or semi-dry machining 1,3,4 and drilling 5 than conventional CrN-based hard coatings, particularly at higher speeds 4 . It has been suggested that this is associated with the greater hardness of these fine-grained coatings 2,4,6 .…”

mentioning

confidence: 99%

Compressive deformation and failure of CrAlN/Si₃N₄ nanocomposite coatings

Liu¹,

Raghavan²,

Zeng³

et al. 2014

Appl. Phys. Lett.

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The deformation and failure mechanisms of CrAlN/Si 3 N 4 coatings containing grains a few nanometres in size have been compared with those of conventional CrN-based coatings. It is shown that the addition of amorphous Si 3 N 4 phase increased the yield stress and hardness of the coating material, but did not change their ratio. This is consistent with theoretical predictions using existing models. However, cracking in conventional CrN-based coatings was catastrophic, whereas that in the fine-grained CrAlN/Si 3 N 4 structure was much more benign, suggesting that the improved performance of these materials is associated with their fracture behaviours.

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“…Moreover, another study [ 16] reports significant improvements in the machining performances of a cutting tool coated with CrÀ Si (9.3 at.%)-N over a cutting tool coated only with CrN. A similar study [ 17] also reports superior wear resistance and cutting performance of tools coated with the CrÀ SiÀ N coating. A recent study [ 18] describes a method of how to increase the cutting performance and service life of a tool material W18Cr4V high-speed steel by doping a surface CrN coating with Si.…”

Section: Introductionmentioning

confidence: 90%

Exploring the energy landscape and crystal structures of CrSi₂N₄

Skundric,

Schön,

Zarubica

et al. 2023

Zeitschrift anorg allge chemie

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The Cr−Si−N system is of great interest for materials with advanced tribological and mechanical properties. So far, experimental data have been reported on Cr−Si−N coating, nanocrystalline phases, and thin films, together with theoretically predicted 1D and 2D hetero‐structures, and 3D bulk Cr2SiN4 modifications. This study predicts possible bulk Cr−Si−N phases with the composition CrSi2N4. A multi‐methodological approach has been employed to explore the system's energy landscape, where global optimization was combined with data mining and the Primitive Cell for Atom Exchange (PCAE) method. Local optimization of the structure candidates was performed on the DFT level using the GGA‐PBE and the LDA‐PZ approximation. The ten energetically most favorable structure candidates discovered in the CrSi2N4 chemical system mostly exhibited monoclinic symmetry but with a variety of structural features, from zeolite‐like structures to polytypic behavior. Finally, the bulk modulus of these possible modifications was computed for a pressure range of up to 10 GPa.

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Mechanical properties and cutting performance of nanocomposite Cr–Si–N coated tool for green machining

Cited by 18 publications

References 11 publications

Structural and mechanical properties of Si-doped CrN coatings deposited by magnetron sputtering technique

Structural and mechanical properties of Si-doped CrN coatings deposited by magnetron sputtering technique

Compressive deformation and failure of CrAlN/Si₃N₄ nanocomposite coatings

Exploring the energy landscape and crystal structures of CrSi₂N₄

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Mechanical properties and cutting performance of nanocomposite Cr–Si–N coated tool for green machining

Cited by 18 publications

References 11 publications

Structural and mechanical properties of Si-doped CrN coatings deposited by magnetron sputtering technique

Structural and mechanical properties of Si-doped CrN coatings deposited by magnetron sputtering technique

Compressive deformation and failure of CrAlN/Si3N4 nanocomposite coatings

Exploring the energy landscape and crystal structures of CrSi2N4

Contact Info

Product

Resources

About

Compressive deformation and failure of CrAlN/Si₃N₄ nanocomposite coatings

Exploring the energy landscape and crystal structures of CrSi₂N₄