Effect of high dilution on the in situ synthesis of Ni–Zr/Zr–Si(B, C) reinforced composite coating on zirconium alloy substrate by laser cladding

Liu, Kun; Li, Yajiang; Wang, Juan; Ma, Qunshuang

doi:10.1016/j.matdes.2015.07.158

Cited by 55 publications

(11 citation statements)

References 48 publications

(54 reference statements)

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“…Since the content of the formed glassy material is quite low, the overall performance of the prepared NiCrAlY-ZrO 2 composites will not be affected. This coexistence of amorphous and crystalline intermetallic compounds has also been reported in other Ni-Zr/Zr-Si laser cladding research [ 33 ].…”

Section: Resultssupporting

confidence: 84%

Microstructure and Wear Property of ZrO2-Added NiCrAlY Prepared by Ultrasonic-Assisted Direct Laser Deposition

Song

Zhang

et al. 2021

Materials

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For improving the wear properties of NiCrAlY, the 10 wt %, 20 wt % and 30 wt % ZrO2-added NiCrAlY samples were prepared by ultrasonic-assisted direct laser deposition, respectively. The results showed that the ultrasonic-assisted direct laser deposition can realize the ZrO2-added NiCrAlY preparation. Furthermore, due to the cavitation effect and agitation of the ultrasound in the molten pool, ultrasonic-assisted could make the upper surface of the samples smoother and flatter, and it also improved the microstructural homogeneity. The microstructure was mainly composed of columnar dendrites, and most of ZrO2 particles were located in the intergranular regions. The principal phase constituents were found to contain γ-Ni and t-NiZr2, and the amorphous (Ni, Zr) intermetallic phase generated, because of more rapid solidification after ultrasound assisted. The microhardness was improved slightly with the increase of ZrO2 contents, rising from 407.9 HV (10% ZrO2) to 420.4 HV (30% ZrO2). Correspondingly, wear mass loss was decreased with the maximum drop 22.7% of 30% ZrO2 compared to that of 10% ZrO2, and wear mechanisms were mainly abrasive wear with slightly adhesive wear. After applying ultrasound, the oxide islands in samples disappeared, and more ceramic particles were retained. Thus, the hardness and wear performance of the samples were improved.

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Section: Resultssupporting

confidence: 84%

Microstructure and Wear Property of ZrO2-Added NiCrAlY Prepared by Ultrasonic-Assisted Direct Laser Deposition

Song

Zhang

et al. 2021

Materials

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“…NbC presents a high melting point (3600 ∘ C), high free energy of formation (140.7 kJ/mol), high chemical stability, high stability and hardness. NbC possess a similar density (7.79 g/cm 3 [39]) as that of Ni-based coatings, which is beneficial to the distribution uniformity of carbide particles in coatings. Wu et al [40] produced Ni60A coatings with different Nb addition.…”

Section: Adding a Single Element To Improve The Performance Of Coatingmentioning

confidence: 99%

Improving the microstructure and mechanical properties of laser cladded Ni-based alloy coatings by changing their composition: A review

Lin

Ping

Kuang

et al. 2020

Reviews on Advanced Materials Science

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Ni-based alloy coatings prepared by laser cladding has high bonding strength, excellent wear resistance and corrosion resistance. The mechanical properties of coatings can be further improved by changing the composition of alloy powders. This paper reviewed the improved microstructure and mechanical properties of Ni-based composite coatings by hard particles, single element and rare earth elements. The problems that need to be solved for the particle-reinforced nickel-based alloy coatings are pointed out. The prospects of the research are also discussed.

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“…NbC also has high hardness (19.6 GPa) and high stability. The density of NbC is similar with Ni or Fe-based coating [23], and it is beneficial to the uniform distribution of NbC in the coating. Up to now, some researchers have begun to study the effect of Nb addition on the properties and structure of coatings [24-28].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and performance of Nb-bearing Ni60A-Cr₃C₂ coatings manufactured by laser cladding

Ping

Sun

et al. 2019

Surface Engineering

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The Ni60A-Cr 3 C 2 coatings with different Nb addition were prepared by laser cladding. The microstructure was observed by SEM and TEM. The chemical composition of phases was studied by X-ray diffractometer and Electron Probe Micro-analyzer (EPMA). Microhardness and wear behaviour were measured by microhardness tester and wear tester, respectively. The results show that the main phases in Ni60A-Cr 3 C 2 coating are γ-Ni, Cr 7 C 3 , Cr 23 C 6 , Ni 3 Si 2 , Ni 3 B and CrB. With Nb addition, the NbC phase appears in the coatings. The size and volume fraction of NbC increase with the increase of Nb addition. The hardness and wear resistance increase first and then decrease with the increase of Nb addition. The micro-hardness of coatings with 2 wt-% Nb addition is the highest, reaching 1046.6 Hv0.2. The relative abrasive resistance of coatings with 3 wt-% Nb addition is the best, and is 2.33 times that of Nb-free coatings.

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Effect of high dilution on the in situ synthesis of Ni–Zr/Zr–Si(B, C) reinforced composite coating on zirconium alloy substrate by laser cladding

Cited by 55 publications

References 48 publications

Microstructure and Wear Property of ZrO2-Added NiCrAlY Prepared by Ultrasonic-Assisted Direct Laser Deposition

Microstructure and Wear Property of ZrO2-Added NiCrAlY Prepared by Ultrasonic-Assisted Direct Laser Deposition

Improving the microstructure and mechanical properties of laser cladded Ni-based alloy coatings by changing their composition: A review

Microstructure and performance of Nb-bearing Ni60A-Cr₃C₂ coatings manufactured by laser cladding

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Effect of high dilution on the in situ synthesis of Ni–Zr/Zr–Si(B, C) reinforced composite coating on zirconium alloy substrate by laser cladding

Cited by 55 publications

References 48 publications

Microstructure and Wear Property of ZrO2-Added NiCrAlY Prepared by Ultrasonic-Assisted Direct Laser Deposition

Microstructure and Wear Property of ZrO2-Added NiCrAlY Prepared by Ultrasonic-Assisted Direct Laser Deposition

Improving the microstructure and mechanical properties of laser cladded Ni-based alloy coatings by changing their composition: A review

Microstructure and performance of Nb-bearing Ni60A-Cr3C2 coatings manufactured by laser cladding

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Microstructure and performance of Nb-bearing Ni60A-Cr₃C₂ coatings manufactured by laser cladding