Abrasive wear resistance of Ti-6AL-4V obtained by the conventional manufacturing process and by electron beam melting (EBM)

Wear, Год журнала: 2023, Номер 524-525, С. 204879 - 204879

Опубликована: Апрель 6, 2023

Ti–6Al–4V is one of the most used commercial titanium alloys, in part due to properties that are desirable high value sectors such as aerospace industry, good strength-to-weight ratio and corrosion resistance. These importance gas turbine engines structural components, where alloys complement heavier steel or nickel alloys. It also a candidate be manufacturing prostheses, since it has biocompatibility, but applications other areas limited its poor bulk wear Conventionally processed Ti-6AL-4V typically used, however additive (AM) techniques electron beam melting (EBM) can applied this alloy. increasingly attractive across many industries because geometrical freedom control mechanical properties, both key, for example, successful production highly personalised prostheses complex thermofluids channels automotive components. Parts produced by EBM denser than those obtained AM processes, still experience increased over their traditionally equivalents, particularly sliding, thus surface treatment common. This work compares observed when specimens manufactured either conventionally were subjected abrasion via means dry sand-rubber wheel tribometer capable testing ASTM G65 test method. The resulting scars characterised (hardness, grain size, roughness) details mechanism(s) identified. exhibited much greater wear, twice specimens, feature significantly more scratches. Although there several studies variously considering two-body sliding efficacy treatments type alloy, addresses paucity information about comparative abrasive performance alloy two process routes.

Язык: Английский

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Microstructure and Wear Resistance of Ti6Al4V Titanium Alloy Laser-Clad Ni60/WC Composite Coating

Materials, Год журнала: 2024, Номер 17(1), С. 264 - 264

Опубликована: Янв. 4, 2024

In this paper, Ni60/WC wear-resistant coatings have been created on the Ti6Al4V substrate surface using a pre-layered powder laser cladding method by deploying various scanning speeds of 8, 10, 12, and 14 mm/s. The are characterized through X-ray diffraction (XRD), electron microscopy (SEM), high-speed reciprocating fatigue wear tester. It is found that phase composition coating comprises synthesized, hard TiC TiB2, silicides WSi2 W5Si3, NiTi γ-Ni solid solutions. At different speeds, there metallurgical fusion line in bonding area fused layer, indicating good between powder. low speed, develops into coarse dendrites, which shows significant improvement with speed. microhardness first increases then decreases coating’s average was 2.75–3.13 times higher than substrate. amount mass has reduced 60.1–79.7% compared to behavior studied detailed analysis surfaces’ microstructures identify optimum

Язык: Английский

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Fabrication of wear-resistant diamond/Ni-based composite coatings via induction brazing

International Journal of Refractory Metals and Hard Materials, Год журнала: 2025, Номер unknown, С. 107098 - 107098

Опубликована: Фев. 1, 2025

Язык: Английский

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A review on the design and analysis for the application of Wear and corrosion resistance coatings

International Journal on Interactive Design and Manufacturing (IJIDeM), Год журнала: 2023, Номер 18(8), С. 5381 - 5405

Опубликована: Июнь 14, 2023

Язык: Английский

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Ultrasonic-Induced Grain Refinement in Laser Cladding Nickel-Based Superalloy Reinforced by WC Particles

Coatings, Год журнала: 2023, Номер 13(1), С. 151 - 151

Опубликована: Янв. 11, 2023

Laser cladding was used to prepare three composite coatings, i.e., Inconel 718 nickel-based superalloy (IN718), IN718-50 wt.% WC created by adding tungsten carbide (WC) particles and assisted ultrasonic vibration. The phase composition, microstructure evolution, microhardness, residual stress tribological properties of the coatings were studied. addition enhances hardness improves properties, but also causes aggregation considerable formation carbides associated with rough structure. Ultrasonic vibration greatly refines solidification microstructure, as it can break growing dendrites, reduce reinforced refine solidified average microhardness latter two increased 36.37% 57.15%, respectively, compared first IN718 coating, last coating (ultrasonic assistance) had lowest COF (0.494). refined converted wear mechanism from adhesive abrasive wear. In addition, resultant on surface roughly doubled after 50 WC, only 49.53% treatment. simulation results indicate that acoustic cavitation mainly occurs in middle bottom molten pool proper frequency is conducive generation effect.

Язык: Английский

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WC-Co/316L stainless steel joining by laser powder bed fusion for multi-material cutting tools manufacturing

International Journal of Refractory Metals and Hard Materials, Год журнала: 2023, Номер 112, С. 106140 - 106140

Опубликована: Янв. 28, 2023

Joining cemented carbides and steels is particularly challenging due to the very dissimilar thermal properties that lead high residual stresses at interface, where in addition, brittle phases can be formed. An effective carbide-steel joint unleash creation of multi-material parts for several applications, this sense, it utmost importance develop efficient methods their fabrication. This work proposes a novel approach, using fabrication freedom laser powder bed fusion technology additively manufacture 316L stainless steel on WC-Co substrate, obtain complex cutting tools, with materials different locations. Results showed good bonding between materials, since dense, well-defined, capable withstanding forces interface was obtained. The hardness ranges from 238 HV 302 HV, direct correlation being found energy density used during obtained hardness. approach produce WC-Co/316L tools metallurgical mechanical strength, without need adding an interfacial material.

Язык: Английский

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Microstructure and properties analysis of AlCoCrFeNi high-entropy alloy/iron-based amorphous composite coatings prepared by laser cladding

Journal of Non-Crystalline Solids, Год журнала: 2023, Номер 624, С. 122732 - 122732

Опубликована: Ноя. 17, 2023

Язык: Английский

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Tribological behavior of PDC-cutter including cemented carbide and polycrystalline diamond composites produced by HPHT for drilling applications

International Journal of Refractory Metals and Hard Materials, Год журнала: 2024, Номер 123, С. 106756 - 106756

Опубликована: Июнь 12, 2024

Язык: Английский

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Slip systems of lamellar α and damage tolerance properties in Ti-5321 alloys formed by laser cladding

Journal of Materials Research and Technology, Год журнала: 2024, Номер 31, С. 579 - 592

Опубликована: Июнь 15, 2024

Ti-5321 alloy formed by laser cladding has good mechanical properties. By subsequent heat treatment of the alloy, not only can rich microstructures be obtained, but its strength, toughness, or damage tolerance performance also improved. Four typical microstructures, including basket-weave structure, large layer ultrafine needle-like and rod-like structure were constructed through different treatments. Basket-weave is composed slender lamellar α, which best plasticity toughness. Due to orientation difference between adjacent α susceptibility multiple slip during crack propagation, this will greatly increase propagation resistance curvature path, beneficial for improving alloy. Large with highest strength. The extremely small prone {10–11}<1–210> pyramidal slip. reduced, in turn damages Ultrafine entirely high strength low single, making it first-order matches well There are systems there significant α. differences have certain hindering effect on deflection.

Язык: Английский

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Fe-based amorphous reinforced CoCrFeNi HEA composite coating prepared by laser cladding

Journal of Materials Research and Technology, Год журнала: 2024, Номер 31, С. 1912 - 1923

Опубликована: Июнь 29, 2024

316L stainless steel (316L SS) is easy to be damaged due poor corrosion and wear resistance, the preparation of composite coating with excellent resistance properties on surface can lengthen its service life. In this aspect, Fe-based amorphous CoCrFeNi high entropy alloy (HEA) was prepared SS by laser cladding. The microstructure, phase, microhardness, coatings were analyzed scanning electron microscope (SEM) equipped energy disperse spectroscopy (EDS), X-ray diffraction (XRD), Vickers hardness tester, electrochemical workstation, friction tester. results show that phase composition FCC solid solution. microstructure gradually evolved from regular cellular crystals irregular structures, while microhardenss each changed little. better than substrate. When content 8%, are best.

Язык: Английский

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