TiC particle reinforced Ti-6Al-4V friction surfacing coatings

Belei, Carlos; Fitseva, Viktoria; Santos, Jorge F. dos; Alcântara, N.G.; Hanke, Stefanie

doi:10.1016/j.surfcoat.2017.09.050

Cited by 33 publications

(6 citation statements)

References 42 publications

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“…[12][13][14][15] TiC has high hardness, high melting point, excellent wear resistance, and good electrical and thermal conductivity. [16][17][18] Compared with other carbide ceramics, TiC ceramics has low density and friction coefficient, excellent thermal shock resistance and high-temperature stability, and TiC with low free energy is easy to synthesize. [19,20] Therefore, TiC is the most commonly used reinforcement material for wear-resistant composites or wearresistant composite coatings.…”

Section: Introductionmentioning

confidence: 99%

Microstructure Evolution of TiC/Inconel 718 Composites Prepared by Direct Energy Deposition

et al. 2023

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TiC/Inconel 718 alloys with different TiC contents are prepared by direct energy deposition technology. The influence of laser power on the microstructure evolution and mechanical properties of the specimens is investigated. According to the microstructure evolution and mechanical properties, it can be observed that the different TiC contents of specimens have the appropriate laser power. The excessive laser power could lead to the generation and coarsening of the Laves phase, and the increasing of dendrite spacing, which causes the formation of cracks. The appropriate laser powers are respectively 1800 and 2000 W when the TiC contents are 5 and 10 wt%. When the TiC content is 15 wt% and laser power is 2000 W, the good metallurgical bond and refined microstructure of the specimens without penetrating cracks are obtained. The penetrating cracks of the specimens have form when TiC content is 20 wt%, which indicates that the TiC maximum content of TiC/Inconel 718 composites should be less than 20 wt% when the laser power does not exceed 2000 W. With the increasing of laser power, the difference of theoretical density between actual density is reduced and the average hardness is not changed.

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Section: Introductionmentioning

confidence: 99%

Microstructure Evolution of TiC/Inconel 718 Composites Prepared by Direct Energy Deposition

et al. 2023

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“…was not possible through friction surfacing due to unavailability of these reinforcements in the solid consolidated form. Few researchers [12][13][14][15][16][17][18][19] found an alternative method of depositing these amorphous materials through friction surfacing. The most common methods include the reinforcement filling by drilling holes in the consumable rod.…”

Section: Introductionmentioning

confidence: 99%

“…Also, the enhancement in wear and corrosion resistance is reported by the effective MMC coating on the substrate. Recently, Gandra et al [11,17,20] and Belei et al [18] modified the aluminium surface by impregnating SiC and TiC particles respectively through the earlier established hole drilling method. This existing method of reinforcing particles though drilling holes in consumable rod provide ambiguity in coating quality, deposition efficiency and particle dispersal in the deposit.…”

Section: Introductionmentioning

confidence: 99%

“…This existing method of reinforcing particles though drilling holes in consumable rod provide ambiguity in coating quality, deposition efficiency and particle dispersal in the deposit. The homogeneous dispersal of particles is difficult to achieve because of the dependency of holes on the distance from the centre of the rod [18]. The reinforcement in the holes which are fabricated close to the center of consumable rod experiences higher axial force in the period of plasticization stage, whereas, particles which are filled in the holes fabricated at a considerable distance from the rod center were mostly expelled and consequently does not affect the process significantly [18].…”

Section: Introductionmentioning

confidence: 99%

“…The homogeneous dispersal of particles is difficult to achieve because of the dependency of holes on the distance from the centre of the rod [18]. The reinforcement in the holes which are fabricated close to the center of consumable rod experiences higher axial force in the period of plasticization stage, whereas, particles which are filled in the holes fabricated at a considerable distance from the rod center were mostly expelled and consequently does not affect the process significantly [18]. Due to this behavior, the reinforcements were typically gets deposited alongside the trails and significantly affects the grain growth mechanism during recrystallization.…”

Section: Introductionmentioning

confidence: 99%

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Surface alteration of aluminium alloy by an exfoliated graphitic tribolayer during friction surfacing using a consumable graphite rich tool

Sharma

Tripathi

Narsimhachary

et al. 2019

Surf. Topogr.: Metrol. Prop.

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In present study, a strategy for mechanical exfoliation of graphite to a few layered graphene (FLG) coupled with its mechanical infusion onto aluminium (Al6061) substrate through a solid-state friction surfacing (FS) methodology is developed and documented. Here, a graphite-rich and expendable FS tool fabricated through conventional powder metallurgy is used as a source of graphite. Later on, this expendable tool is utilized for impregnating graphite on the aluminium alloy surface through FS. The high frictional shear stress during FS results in the exfoliation of graphite to FLG which is confirmed by the characteristic wrinkled morphology through FE-SEM studies. Experimental results revealed successful impregnation of FLG flakes up to ∼165 μm depth on the surface of aluminium matrix. The effect of graphite flake size (60 mesh (max. 250 μm) and 325 mesh (max. 44 μm)) on specific wear rate and its ability to mechanically exfoliate into a FLG structure is also analysed. Dynamic recrystallization due to plastic deformation during FS results in∼90% grain size reduction relative to the as-received aluminium alloy (reference Al). Excellent interfacial bonding with mechanical intercalation between graphite flake and aluminium matrix is also observed through TEM studies. Intermetallic phase such as Al 4 C 3 is observed at the Al/graphite interface with larger flake size. The tribological properties are significantly improved with the graphite reinforcement leading to the decrease in coefficient of friction by ∼12.5 and 26.7% with graphite of 250 (FS250) and 44 μm (FS44) flake size respectively as compared to the reference Al. The least specific wear rate is observed for FS44 which is about ∼53.4 % and∼28.57 % less than the wear rate of reference Al and FS250, respectively. The microhardness, nano-hardness and XRD studies further corroborate the results.

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The Microstructure Morphology and Texture Evolution of α‐Ti in Ti‐6Al‐4V Alloy During Friction Stir Processing With Low Rotation Speed and Traverse Speed

et al. 2019

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Friction stir processed Ti‐6Al‐4V alloys are successfully prepared under low rotation speed (≤200 rpm) and low traverse speed (≤50 mm min−1). The microstructure of the stir zone is homogeneous in thickness. Effects of process parameters on microstructure and texture evolution of α‐Ti in the stir zone during friction stir processing are clarified. It is found that traverse speed had a significant impact on microstructure in the stir zone. The equiaxed nano‐crystalline α‐Ti grains without texture formed via friction stir processing below β transus. The high temperature range and severe deformation range are overlapped when the samples are processed with low traverse speed. Dynamic recrystallization happened repeatedly and fast cooling inhibited grain growth when the stir tool moved away the stir zone. Ti‐6Al‐4V alloy shows shear texture after friction stir processing below β transus with higher traverse speed. β → α transformation occurred and lamellar α colonies formed during cooling stage above β transus when the rotation and traverse speed are increased. The microstructure morphology and texture strength of Ti‐6Al‐4V plates could be regulated by combining of heating and cooling stages during friction stir processing.

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TiC particle reinforced Ti-6Al-4V friction surfacing coatings

Cited by 33 publications

References 42 publications

Microstructure Evolution of TiC/Inconel 718 Composites Prepared by Direct Energy Deposition

Microstructure Evolution of TiC/Inconel 718 Composites Prepared by Direct Energy Deposition

Surface alteration of aluminium alloy by an exfoliated graphitic tribolayer during friction surfacing using a consumable graphite rich tool

The Microstructure Morphology and Texture Evolution of α‐Ti in Ti‐6Al‐4V Alloy During Friction Stir Processing With Low Rotation Speed and Traverse Speed

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