Effects of nitrogen content on structure and mechanical properties of multi-element (AlCrNbSiTiV)N coating

Huang, Ping-Kang; Yeh, Jien‐Wei

doi:10.1016/j.surfcoat.2009.01.016

Cited by 179 publications

(68 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[35], these peaks corresponded to the (111), (200), (220), (311) lattices of the NaCl-type face-centered cubic (fcc) structure. This finding clearly indicated that due to the effect of high mixing entropies of multiple components, the HEAN x Si y coatings formed a simple solid-solution structure, rather than any complex phase separations [17][18][19][20][21], in which five metallic elements randomly distributed at the "Na" site of the NaCl-type fcc structure, while N located at the "Cl" site [26,36,37]. As listed in Table 1, without Si doping, the interplanar spacing of HEAN x (111) lattice was 0.251 nm approximate to the average spacing of five metal nitrides (AlN, CrN, TaN, TiN, ZrN) [19,21].…”

Section: Compositions and Structures Of Hean X Si Y Coatingsmentioning

confidence: 91%

“…However, with increasing Si-target power, the preferred orientations and microstructures of the HEAN x Si y coatings obviously changed, as seen from the XRD patterns in Figure 1 From the full widths at half maxima (FWHM) of the fcc (111) diffraction peaks and the Sherrer equation [35], the grain sizes of HEAN x Si y coatings listed in Table 1 were obtained and found to decrease to a very small level of less than 7 nm with increasing substrate bias and Si-target power, consistent with the above SEM observations. As shown in the TEM lattice image of HEAN 1.07 Si 0.15 coating (deposited at a substrate bias of 100 V and a Si-target power of 50 W) in Figure 3(a), ultrafine grains with a size of 5-15 nm and small-angle boundaries with a preferred orientation were clearly identified [18,21,36]. As seen in Figure 3(b), amorphous regions (ARs) were found to exist between two nanocrystallites (NC1 and NC2) of small-angle misorientation.…”

Section: Compositions and Structures Of Hean X Si Y Coatingsmentioning

confidence: 96%

“…Multi-component HEAs typically possess very simple solid-solution structures because of the effect of high mixing entropies to lower free energy [14], and exhibit extraordinary performances such as good mechanical properties, high thermal stabilities, and an excellent wear resistance [14][15][16]. Accordingly, HEAs, HEA nitrides (HEANs), HEA carbides (HEACs) and HEA carbonitrides (HEACNs) have been intensively studied for protective coating applications [17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Nanomechanical Properties and Deformation Behaviors of Multi-Component (AlCrTaTiZr)NxSiy High-Entropy Coatings

Lin

Chang

et al. 2013

Entropy

View full text Add to dashboard Cite

Abstract:In this study multi-component (AlCrTaTiZr)N x Si y high-entropy coatings were developed by co-sputtering of AlCrTaTiZr alloy and Si in an Ar/N 2 mixed atmosphere with the application of different substrate biases and Si-target powers. Their nanomechanical properties and deformation behaviors were characterized by nanoindentation tests. Because of the effect of high mixing entropies, all the deposited multi-component (AlCrTaTiZr)N x Si y high-entropy coatings exhibited a simple face-centered cubic solid-solution structure. With an increased substrate bias and Si-target power, their microstructures changed from large columns with a [111] preferred orientation to a nanocomposite form with ultrafine grains. The hardness, H/E ratio and H 3 /E 2 ratio of (AlCrTaTiZr)N 1.07 Si 0.15 coating reached 30.2 GPa, 0.12 and 0.41 GPa, respectively, suggesting markedly suppressed dislocation activities and a very high resistance to wear and plastic deformation, attributable to grain refinements and film densification by the application of substrate bias, a nanocomposite structure by the introduction of silicon nitrides, and a strengthening effect induced by severe lattice distortions. In the deformed regions under indents, stacking faults or partial dislocations were formed, while in the stress-released regions, near-perfect lattices recovered.

show abstract

Section: Compositions and Structures Of Hean X Si Y Coatingsmentioning

confidence: 91%

Section: Compositions and Structures Of Hean X Si Y Coatingsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nanomechanical Properties and Deformation Behaviors of Multi-Component (AlCrTaTiZr)NxSiy High-Entropy Coatings

Lin

Chang

et al. 2013

Entropy

View full text Add to dashboard Cite

show abstract

“…This results in an increasing of domain width and the changing in crystal structure. The wear resistance of the films can be found from the ratio between the hardness and modulus, 21) and revealed that Cr-Zr-N films grown at a 20% nitrogen partial pressure and annealed at 500 C had the maximum value (highest wear resistance). After annealing, the RMS roughness was not changed (Fig.…”

Section: Effect Of Annealing Temperaturementioning

confidence: 99%

Growth and Structural Characterizations of Nanostructured Chromium-Zirconium-Nitride Thin Films for Tribological Applications

Homhuan

Chaiyakun²,

Thonggoom

et al. 2010

Mater. Trans.

View full text Add to dashboard Cite

Nanostructured Cr-Zr-N thin films were grown on Si(100) substrates in a mixture of Ar and N 2 plasma. The nitrogen partial pressure was varied to produce and control the stoichiometric forms obtained. All the Cr-Zr-N films exhibited a nanostructure with an average grain size of less than 10 nm, as determined by X-ray diffractogram analysis, and were formed in the solid-solution. As the contents of nitrogen in the film increased, it lead to changes in the crystal texture and competitive growth. The maximum root mean square roughness was 7.87 nm at a 20% nitrogen partial pressure and the roughness tended to decrease as the grain size decreased. The nano-indentation showed that the films grown at a 20% nitrogen partial pressure and annealed at 700 C had the highest reduced modulus and hardness at 349.2 and 35.1 GPa, respectively. The mechanical properties of films can be improved by a post-annealing heat treatment. With respect to the electrical properties of these films, the sheet resistance, which is related to the defect level, tended to increase as the nitrogen partial pressure increased.

show abstract

“…It should be noted that, the bulk high-entropy alloys have been investigated more intensive, in contrast to the coatings based on HEAs. There are only few studies on HEA coatings are available, such as: (TiZrNbHfTa)N [25], (AlCrMoTaTi)N [26], (AlCrNbSiTiV)N [27], (AlCrSiTiZr)N [28], (AlMoNbSiTaTiVZr)N [29] and (TiVNbZrHf)N [21]. The nitride films based on high-entropy alloys exhibit beneficial features and extraordinary properties, like excellent mechanical properties oxidation and wear resistance.…”

Section: Introductionmentioning

confidence: 99%

The effects of Cr and Si additions and deposition conditions on the structure and properties of the (Zr-Ti-Nb)N coatings

Pogrebnjak

Bagdasaryan

Береснев

et al. 2017

Ceramics International

View full text Add to dashboard Cite

A B S T R A C TIn this study, (Zr-Ti-Nb)N, (Zr-Ti-Cr-Nb)N and (Zr-Ti-Cr-Nb-Si)N nitride coatings were obtained using a welldeveloped vacuum arc deposition. The systematical investigations demonstrate that the chemical composition, microstructure, and properties of the coatings intimately rely on the deposition parameters (pressure of working gas and substrate bias). Effects of Cr and Si additions on microstructure and mechanical properties of the (ZrTi-Nb)N coatings have been investigated using scanning electron microscopy (SEM) equipped with energy dispersive spectrum (EDS), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), transmission electron microscope (TEM), hardness measurements and adhesion testing. First-principles band-structure calculations and Gibbs-Rosenbaum triangle representation have been used to investigate the elemental and phase compositions in nitride coatings. The multi-component (Zr-Ti-Cr-Nb-Si)N and (Zr-Ti-Nb)N coatings are found to be a simple face-centered cubic (FCC) solid solution. For the coatings without Si, the structure is mainly composed of TiN fcc phase and Cr 2 N trigonal modification. The hardness values were in the ranges (24-42 GPa). The (Zr-Ti-Nb)N, (Zr-Ti-Cr-Nb)N coatings provided the best adhesive strength in different conditions. The (Zr-Ti-Cr-Nb-Si)N coatings exhibited the worst adhesive strength, which may be attributed to the relative low hardness.

show abstract

Effects of nitrogen content on structure and mechanical properties of multi-element (AlCrNbSiTiV)N coating

Cited by 179 publications

References 31 publications

Nanomechanical Properties and Deformation Behaviors of Multi-Component (AlCrTaTiZr)NxSiy High-Entropy Coatings

Nanomechanical Properties and Deformation Behaviors of Multi-Component (AlCrTaTiZr)NxSiy High-Entropy Coatings

Growth and Structural Characterizations of Nanostructured Chromium-Zirconium-Nitride Thin Films for Tribological Applications

The effects of Cr and Si additions and deposition conditions on the structure and properties of the (Zr-Ti-Nb)N coatings

Contact Info

Product

Resources

About