Improved mechanical properties of W-Zr-B coatings deposited by hybrid RF magnetron – PLD method

Psiuk, Rafał; Milczarek, Michał; Jenczyk, Piotr; Denis, Piotr; Jarząbek, Dariusz M.; Bazarnik, Piotr; Pisarek, Marcin; Mościcki, Tomasz

doi:10.1016/j.apsusc.2021.151239

Cited by 17 publications

(19 citation statements)

References 44 publications

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“…In the case of Mo, Zr and Re the hardness is lower and is 45.4 ± 6.7, 43.9 ± 3.3 and 32.6 ± 6.4 GPa respectively. These values are lower than hardness of unalloyed WB2 presented in literature (H = 46 ± 2 GPa [18]). However, it should be noted that hardness results presented by Psiuk et al [18] were measured by nanoindentation method under load of 3 mN.…”

Section: Coatingscontrasting

confidence: 63%

“…These values are lower than hardness of unalloyed WB2 presented in literature (H = 46 ± 2 GPa [18]). However, it should be noted that hardness results presented by Psiuk et al [18] were measured by nanoindentation method under load of 3 mN. The lowest hardness, when rhenium is added, can be explained by the degree of crystallization conducted from XRD All deposited coatings are very hard and the results of hardness measurement under load 10, 25 and 50 g are presented in Table 5.…”

Section: Coatingscontrasting

confidence: 63%

“…In addition, resputtering of atoms from surface deposited coatings is also possible. A decrease in light elements was already observed in References [18,32]. The boron content B/(Zr + W) is in the range of 1.54-2.06 (see Table 2) which means boron decrease of 38.4-17.7 % respectively compared to the target composition.…”

Section: Coatingsmentioning

confidence: 58%

“…Only spectra were recorded in the range of 24°-31°. XRD spectra of phase composition corresponds to the phase WBy [18]. The comparison of XRD pattern of targets (Figure 4) and deposited coatings indicates the change of crystal structure of WB2 from softer ω-WB2 (P63/mmc) to harder α-WB2 (P6/mmm).…”

Section: Coatingsmentioning

confidence: 94%

“…Deposited films are superhard (H > 40 GPa) and in the case of tantalum can exhibit fracture toughness K 1c values of 3.7 to 3.0 MPa•m 1/2 for increasing Ta content (single-phased up to 26 at.% Ta) [11]. Psiuk et al [18] studied W-Zr-B coatings deposited by a hybrid process combining pulsed laser deposition of ZrB 2 and radio frequency magnetron sputtering of W 2 B 5 . Deposited films with ≈1% atomic content of Zr were superhard (H = 40 ± 4 GPa) and incompressible (R s = 12 ± 1 GPa) but possessed a relatively low Young's modulus (E = 330 ± 32 GPa) and a high elastic recovery (W e = 0.9).…”

Section: Introductionmentioning

confidence: 99%

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Properties of Spark Plasma Sintered Compacts and Magnetron Sputtered Coatings Made from Cr, Mo, Re and Zr Alloyed Tungsten Diboride

et al. 2021

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To enhance the properties of tungsten diboride, we have synthesized and characterized solid solutions of this material with chromium, molybdenum, rhenium and zirconium. The obtained materials were subsequently deposited as coatings. Various concentrations of these transition metal elements, ranging from 0.0 to 24.0 at.%, on a metals basis, were made. Spark plasma sintering was used to synthesize these refractory compounds from the pure elements. Elemental and phase purity of both samples (sintered compacts and coatings) were examined using energy dispersive X-ray spectroscopy and X-ray diffraction. Microindentation was utilized to measure the Vickers hardness. X-ray diffraction results indicate that the solubility limit is below 8 at.% for Mo, Re and Zr and below 16 at.% for Cr. Above this limit both diborides (W,TM)B2 are created. Addition of transition metals caused decrease of density and increase of hardness and electrical conductivity of sintered compacts. Deposited coatings W1−xTMxBy (TM = Cr, Mo, Re, Zr; x = 0.2; y = 1.7–2) are homogenous, smooth and hard. The maximal hardness was measured for W-Cr-B films and under the load of 10 g was 50.4 ± 4.7 GPa. Deposited films possess relatively high fracture toughness and for WB2 coatings alloyed with zirconium it is K1c = 2.11 MPa m1/2.

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Section: Coatingscontrasting

confidence: 63%

Section: Coatingscontrasting

confidence: 63%

Section: Coatingsmentioning

confidence: 58%

Section: Coatingsmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Properties of Spark Plasma Sintered Compacts and Magnetron Sputtered Coatings Made from Cr, Mo, Re and Zr Alloyed Tungsten Diboride

et al. 2021

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Effect of Temperature on Hard TiB2-Al2O3-Ti Coatings Deposited Using Electron Beam Physical Vapor Deposition

Ali

Ahmad

2022

J. of Materi Eng and Perform

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Effect of zirconium doping on the mechanical properties of $$W_{1-x}Zr_{x}B_2$$ on the basis of first-principles calculations and magnetron sputtered films

Maździarz

Psiuk

Krawczyńska

et al. 2022

Archiv.Civ.Mech.Eng

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Potentially superhard $$W_{1-x}Zr_{x}B_2$$ W 1 - x Z r x B 2 polymorphs, hP6-P6$$_{3}$$ 3 /mmc-WB$$_2$$ 2 and hP3-P6/mmm-WB$$_2$$ 2 , were thoroughly analyzed with zirconium doping in the range of x=0-25%, within the framework of the first-principles density functional theory, from both a structural and a mechanical point of view. The obtained results were subsequently compared with the properties of material deposited by the magnetron sputtering method. All predicted structures are mechanically and thermodynamically stable. Theoretical calculations suggest a decrease in hardness $$H_v$$ H v and fracture toughness $$K_{\text {IC}}$$ K IC of the hP6 phase with zirconium doping but no such effect on the hP3 phase. It was observed that an additional defect in the analyzed structure significantly weakens the hP6 phase but strengthens the hP3 phase. The deposited films are characterized by greater hardness but lower fracture toughness. The results of experiments show that not only is solid solution hardening responsible for strengthening the predicted new material but also the change in microstructure, the Hall–Petch effect and vacancies.

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Improved mechanical properties of W-Zr-B coatings deposited by hybrid RF magnetron – PLD method

Cited by 17 publications

References 44 publications

Properties of Spark Plasma Sintered Compacts and Magnetron Sputtered Coatings Made from Cr, Mo, Re and Zr Alloyed Tungsten Diboride

Properties of Spark Plasma Sintered Compacts and Magnetron Sputtered Coatings Made from Cr, Mo, Re and Zr Alloyed Tungsten Diboride

Effect of Temperature on Hard TiB2-Al2O3-Ti Coatings Deposited Using Electron Beam Physical Vapor Deposition

Effect of zirconium doping on the mechanical properties of $$W_{1-x}Zr_{x}B_2$$ on the basis of first-principles calculations and magnetron sputtered films

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