In-situ synthesis of nano-lamellar Ni1.5CrCoFe0.5Mo0.1Nbx eutectic high-entropy alloy coatings by laser cladding: Alloy design and microstructure evolution

Wen, Xin; Cui, Xiufang; Guo, Jingjie; Liu, Yuanyuan; Zhang, Ye; Fang, Yongchao

doi:10.1016/j.surfcoat.2020.126728

Cited by 62 publications

(11 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Addition of Si element to AlCoCrFeNi HEA [567], Ti element to AlCoCrFeNi HEA [568] or increase in the ratio of B/Si in the laser cladded Fe 25 Co 25 Ni 25 (B x Si 1-x ) 25 [569], reduced the friction coefficient and wear rate. Laser cladding HEA coatings of ternary CrNiTi on pure titanium [570], and nano-lamellar Ni 1.5 CrCoFe 0.5 Mo 0.1 Nb x on stainless steel [571] were also reported. Other HEA coatings of CrNbSiTiZr by radio-frequency magnetron sputtering [572], of Fe 17 Cr 2 Ni 0.2 C by thermal spraying [573], of AlxCoCrFeNiSi by atmospheric plasma spraying and laser re-melting were fabricated and | https://mc03.manuscriptcentral.com/friction characterized.…”

Section: High Entropy Alloys (Heas)mentioning

confidence: 94%

A review of advances in tribology in 2020–2021

Meng

et al. 2022

Friction

View full text Add to dashboard Cite

Around 1,000 peer-reviewed papers were selected from 3,450 articles published during 2020–2021, and reviewed as the representative advances in tribology research worldwide. The survey highlights the development in lubrication, wear and surface engineering, biotribology, high temperature tribology, and computational tribology, providing a show window of the achievements of recent fundamental and application researches in the field of tribology.

show abstract

Section: High Entropy Alloys (Heas)mentioning

confidence: 94%

A review of advances in tribology in 2020–2021

Meng

et al. 2022

Friction

View full text Add to dashboard Cite

show abstract

“…One can also find other cases of changing GB wetting in HEA coatings: These are, for example, the NiTi-based HEAs such as NiTiCuAl functionally graded coatings on Mg-Li substrates [83] and NiTiCrNbTa x refractory coatings with variable Ta content (x = 0.1, 0.3, 0.5, 1) [84]. Another group of coatings builds the FeCoNi-based HEAs such as FeCoNiCrMo alloy containing the CeO 2 particles [85], the ceramic p6rticle reinforced FeCoNiCrMnTi HEAs [68], single-phase fcc CoCrFeNiSi coatings [86], the Al 2 CrFeCo x CuNiTi coatings with x = 0.0, 0.5, 1.0, 1.5, 2.0 [16], AlFeCuCrCoNi-WC x HEA coatings with carbon content of 5, 10 and 15 at.% [87] and Ni 1.5 CrCoFe 0.5 Mo 0.1 Nb x eutectic HEA coatings with x = 0.55 (hypoeutectic), 0.68 (eutectic), 0.8 (hypereutectic alloys) [15]. Final important examples are the NbTaTiZr refractory medium-entropy alloy coatings [88] as well as carbide-containing Fe 50 Mn 30 Co 10 Cr 10-x NbC composite coatings [89].…”

Section: Gb Wetting In Multitrack and Multilayer Hea Coatingsmentioning

confidence: 99%

“…Laser cladding is the most frequently used technology for the manufacturing of HEA coatings [14][15][16]. HEA coatings can also be deposited by plasma cladding [17,18], plasma spray [19][20][21][22][23][24][25][26], thermal spray [27], magnetron sputtering [28][29][30][31][32][33][34][35][36][37], electric arc deposition [38], electron beam physical vapor deposition [39], and vacuum arc deposition [40][41][42][43][44].…”

Section: Introductionmentioning

confidence: 99%

High Entropy Alloys Coatings Deposited by Laser Cladding: A Review of Grain Boundary Wetting Phenomena

et al. 2022

View full text Add to dashboard Cite

High-entropy alloys (HEAs) are called also alloys without a main component or multiprincipal alloys. They consist of five, six or more components in more or less equal proportions and possess unique properties. Several dozens of thousands of publications have already been devoted to bulk HEAs, while HEA coatings are just beginning to develop. More than half of the works on the deposition of HEA coatings are devoted to laser cladding. In the laser cladding process, a mixture of powders on a substrate is melted in a focused laser beam, which sequentially scans the substrate. In the heated zone, the powder mixture melts. At the end of the crystallization process, a solidified polycrystal and a small amount of residual melt are found in the heated zone. It is possible that the grain boundaries (GBs) in the solidified polycrystal are incompletely or fully wetted by this liquid phase. In this way, the GB wetting with a melt determines the morphology and microstructure of HEAs coatings. This review analyzes GB wetting in single-phase HEAs, as well as in HEAs containing two or more phases. We analyze how the HEAs’ composition, laser scanning speed, laser beam power, external magnetic field or ultrasonic impact affect the microstructure and GB wetting. It is also shown how the microstructure and GB wetting change over the thickness of the rather thick as well as multilayer coatings deposited using a laser cladding.

show abstract

“…Especially promising are the HEAs in the form of coatings. Such HEA coatings were deposited with, for example, plasma cladding [7][8][9][10][11][12][13][14], plasma spray [15,16], thermal spray [17], laser cladding [18][19][20], magnetron sputtering [21][22][23][24][25], and vacuum arc deposition [26]. In many cases, HEAs exhibit a single-phase structure in a wide interval of temperatures, which consists of a multicomponent solid solution [27].…”

Section: Introductionmentioning

confidence: 99%

Influence of Heat Treatment and High-Pressure Torsion on Phase Transformations in TiZrHfMoCr High-Entropy Alloy

Горнакова

Straumal

Kuzmin

et al. 2023

Metals

View full text Add to dashboard Cite

The study focused on a 21.99 at.%Ti–22.49 at.%Zr–20.35 at.%Hf–17.45 at.%Mo–17.73 at.%Cr). Analytical techniques such as X-ray diffraction, scanning electron microscopy as well as X-ray absorption spectroscopy were employed to investigate the alloy’s structure, phase transformations, and properties. The alloy in the as-cast state contained three phases, namely the body-centred cubic (A2) phase, hexagonal Laves phase (C14), and cubic Laves phase (C15). The alloy has been annealed for a long time at different temperatures. It led to the disappearance of the hexagonal Laves phase, leaving behind two primary phases, namely the cubic Laves phase (C15) and the body-centered cubic phase (A2). At 1200 °C, the A2 phase almost disappeared, resulting in a practically single-phase sample. After a high-pressure torsion (HPT) treatment, the hexagonal Laves phase disappeared entirely, while the A2 and C15 phases remained. The grain size of the A2 and C15 phases was refined after HPT and grains were elongated, and their configuration resembled a layered structure. The high hardness of the A2 and C15 + C14 phases accounted for this behavior. The lattice parameters in the A2 and C15 phases after HPT treatment approached those observed after prolonged annealing at 1000 °C, indicating that the composition of these phases after short-term high-pressure torsion at ambient temperature is equivalent to the composition of these phases after long tempering at 1000 °C. The rate of diffusion-like mass transfer during severe plastic deformation was estimated to be many orders of magnitude higher than that for conventional bulk diffusion at the HPT treatment temperature and similar to that at elevated temperatures above 1000 °C. X-ray absorption spectroscopy results obtained at K-edges of Ti, Cr, Zr, and Mo as well as at the L3-edge of Hf indicated that the local environment around metal atoms before HPT was similar to that after HPT. However, the static disorder increased after HPT, which could be attributed to an increased specific amount of metal atoms in the disordered grain boundary layers after HPT-driven grain refinement.

show abstract

In-situ synthesis of nano-lamellar Ni1.5CrCoFe0.5Mo0.1Nbx eutectic high-entropy alloy coatings by laser cladding: Alloy design and microstructure evolution

Cited by 62 publications

References 54 publications

A review of advances in tribology in 2020–2021

A review of advances in tribology in 2020–2021

High Entropy Alloys Coatings Deposited by Laser Cladding: A Review of Grain Boundary Wetting Phenomena

Influence of Heat Treatment and High-Pressure Torsion on Phase Transformations in TiZrHfMoCr High-Entropy Alloy

Contact Info

Product

Resources

About