Enhancement in wear-resistance of 30MNCRB5 boron steel-substrate using HVOF thermal sprayed WC–10%Co–4%Cr coatings: a comprehensive research on microstructural, tribological, and morphological analysis

Journal of Materials Research and Technology, Journal Year: 2023, Volume and Issue: 27, P. 1072 - 1096

Published: Oct. 5, 2023

The rotavator blade, a part of an agricultural equipment rotavator, is used for the soil bed preparation. These blades have direct interaction with in land. Bad, rocky, gravel, sandy, and high rough-hard texture are main factor to damage surface blade wear rate observed. This causes decrease overall life blade. It also changes geometry after few operations, that all effects performance capability this Hence HVOF (High-velocity oxy-fuel) modify improved resistance blade’s surface. Feedstock powder coating WC-10%Co-4%Cr Ni-20%Cr as bond coat on 30MNCRB5 steel substrate (Rotavator material). Six samples prepared test it Pin-On-Disc testing apparatus determine rate, weight loss, cumulative volume loss linear three bare coated 8mm diameter 30mm length cylindrical pin shape. Coated characterized using XRD (X-ray diffraction), SEM (Scanning electron microscope) EDAX (Energy-dispersive spectroscopy), X-ray mapping techniques. Worn out surfaces investigated study microstructure worn helped identify behavior. spray drastically defend from wear, very less was seen compared material. Weight determined by (30MNCRB5) material at 40N, 50N, 60N loads 2.996 ×10-3 Kgm, 3.003 3.123 (WC-10%Co-4%Cr) sample 0.006 0.030 0.038 Kgm respectively.

Language: Английский

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Enhancing tribo-mechanical, microstructural morphology, and corrosion performance of AZ91D-magnesium composites through the synergistic reinforcements of silicon nitride and waste glass powder

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Feb. 8, 2024

Abstract The present investigation has employed recycled waste glass powder (WGP) and silicon nitride (Si 3 N 4 ) as reinforcing-agents within AZ91D-matrix composites. composites were fabricated by employing the vacuum stir casting technique to mitigate effects of oxidation ensure homogeneity, uniformity, superior wettability among reinforcements. A microscopic study provided confirmation a uniform dispersion WGP Si particles throughout AZ91D-matrix. tensile strength AZ91D/WGP/Si rise with inclusion particulates up 1.5 percent in AZ91D/7.5% . However, AZ91D/9%Si composite have showed maximum value compared other chosen formulations/combinations current investigation. AZ91D/1.5% WGP/7.5% strengthened 12.13 comparison base alloy In A1 formulated composite, amount particulate enhanced hardness AZ91D-alloy percent. Findings, nevertheless exhibited that A6 had outcomes terms hardness. incorporation “reinforcing-constituent particulates” 1.5%WGP + 7.5%Si combination AZ91D-matrix, further increased fatigue-strength around 57.84 weight-loss 0.312 mg was being unveiled for composite. however, reported be 0.294 mg. At 5 loads, 2 m/s sliding speed, 1000 m distance, developed 1.5%WGP/7.5%Si /AZ91D rate wear, frictional coefficient 0.0025 mm /m 0.315, respectively. scanning electron microscopy (SEM) identified presence corrosion pits on surfaces undergone corrosion. These found result localised surface assaults occurring corrosive environments. Additionally, SEM pictures worn indicated emergence microcracks, which may associated conditions cyclic loading. Moreover, tensile-fractography examination brittle fracture failure, including cracks debonding phenomena. addition, EDS spectra-analysis revealed an apparent existence observed Mg-peak, Si-peak, Al-peak, Ca-peak, O-peak Furthermore, utilisation X-ray diffraction analysis effectively determined hard phases inside significantly contributed enhancement wear resistance. development harder-phases included, α-Mg, Al 12 Mg 17, SiO , MgO, CaO been accountable tribomechanical, wear-resistance characteristics discovered substantial impact enhancing mechanical performance raising resistance wear.

Language: Английский

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Effect of chemically treated kenaf fiber on the mechanical, morphological, and microstructural characteristics of PLA-based sustainable bio-composites fabricated via direct injection molding route

Biomass Conversion and Biorefinery, Journal Year: 2023, Volume and Issue: unknown

Published: Oct. 19, 2023

Language: Английский

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Tribomechanical, and microstructural morphological analysis of nitride ferrous powder metallurgy composites for enhanced automotive valve guide performance

Journal of Materials Research and Technology, Journal Year: 2024, Volume and Issue: 31, P. 6 - 25

Published: June 2, 2024

The growing challenges of reducing exhaust emissions and improved fuel economy has triggered automotive engineers to design manufacture engine parts with superior mechanical properties dimensional accuracies. Valve guides are cylindrical structures supporting inlet valve stems during operation. Conventionally made grey cast iron material, guide suffers from severe wear losses leading loss increased due improper stem seating. Here, the synthesis a novel ferrous powder metallurgy composite is presented characteristics have been studied at varying loads 30 N, 40 N 50 sliding speeds 0.5 m/s, 1 m/s 2 under lubricated conditions. samples undergone nitriding heat treatment 1150 °C improve surface hardness 700 Hv. shown negative rates high capillary action lubricating oil exhibited stable friction coefficient values. This attributed formation hard phases Fe2N, Fe3N, Fe4N Fe(Mn)3C twinning-induced plastic compounds like (Fe24Mn) 0.08 as evident XRD analysis. morphological analysis worn out was done SEM Coupled EDS it showed micro-cutting, Ploughing, delamination main phenomenon.

Language: Английский

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Exploring Microstructural, Interfacial, Mechanical, and Wear Properties of AlSi7Mg0.3 Composites with TiMOVWCr High-Entropy Alloy Powder

ACS Omega, Journal Year: 2024, Volume and Issue: 9(17), P. 18813 - 18826

Published: April 17, 2024

This study explored the impact of varying weight percentages TiMoVWCr high-entropy alloy (HEA) powder addition on A356 composites produced using friction stir processing (FSP). Unlike previous research that often focused singular aspects, such as mechanical properties, or microstructural analysis, this investigation systematically examined multifaceted performance by comprehensively assessing microstructure, interfacial bonding strength, and wear behavior. The identified a uniform distribution HEA in composition A356/2%Ti2%Mo2%V2%W2%Cr, highlighting effectiveness FSP technique achieving homogeneous dispersion. Strong between reinforcement matrix material was observed same composition, indicating favorable characteristics. Mechanical including tensile strength hardness, were evaluated for various compositions, demonstrating significant improvements across board. 2%Ti2%Mo2%V2%W2%Cr enhanced 36.39%, while hardness improved 62.71%. Similarly, resistance showed notable enhancements ranging from 35.56 to 48.89% different compositions. Microstructural analysis revealed approximately 1640.59 grains per square inch A356/2%Ti2%Mo2%V2%W2%Cr processed composite at 500 magnifications. In reinforcing Al with Ti, Mo, V, W, Cr particles, each element imparted distinct benefits. Titanium (Ti) resistance, molybdenum (Mo) contributed vanadium (V) promoted hardenability, tungsten (W) chromium (Cr) provided hardness. Anticipating potential applications developed composite, suggests its suitability aerospace sector, particularly casting lightweight yet high-strength parts aircraft components, engine structural underlining significance investigated powder-modified composites.

Language: Английский

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Effect of Yttria-Stabilized Zirconia addition along with Cu in development of titanium based metal matrix composite via FSP technique for the application in biomedical devices

Composite Interfaces, Journal Year: 2024, Volume and Issue: 31(10), P. 1173 - 1197

Published: March 18, 2024

The present study investigated the effect of incorporating Yttria-Stabilized Zirconia (YSZ) and copper (Cu) in development Titanium-Based Metal Matrix Composites (TMCs) using Friction Stir Processing (FSP) technique. macrostructure TMCs, after adding 5% YSZ 2% Cu, displayed a defect-free, crack-free, porosity-free surface, indicating precision FSP method. Microstructure analysis revealed uniform distribution reinforcement particles proper dispersion grains, key for enhancing mechanical properties. interfacial bonding between titanium was exceptionally strong, devoid cracks porosity, attributed to additive's role. increase number grains per square inch Ti/5% YSZ/2% Cu composite (1176.26 at 500×) signified finer grain structure, contributing remarkable 48.04% improvement tensile strength compared pure titanium. strong are driving forces behind 46.34% increased hardness. Additionally, wear resistance improved by approximately 76.66%, vital characteristic applications facing abrasive conditions. corrosion testing demonstrated an 8.33% enhancement with composite.

Language: Английский

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Physicomechanical, Wettability, Corrosion, Thermal, and Microstructural Morphology Characteristics of Carbonized and Uncarbonized Bagasse Ash Waste-Reinforced Al-0.45Mg-0.35Fe-0.25Si-Based Composites: Fabrications and Characterizations

ACS Omega, Journal Year: 2024, Volume and Issue: 9(17), P. 18836 - 18853

Published: April 17, 2024

An effort was being made to incorporate waste bagasse ash (WBA) both in carbonized and uncarbonized form into the formulation of Al6063 matrix-based metal matrix composites (MMC's) by partially substituting ceramic particles for them. In process developing composites, comparative research on WBA powder carried out role reinforcement. Microstructure investigations revealed that were properly distributed throughout aluminum-base alloy. They also had appropriate level wettability. The reinforcement AA6063-based material a maximum tensile strength 110 MPa maximal hardness 39 BHN when 3.75 wt % used. deterioration (6.25 WBA) appearance porosity blowholes can be enumerated fractography-based scanning electron microscopy (SEM) analysis. found have percent elongation 14.42% highest fracture toughness 15 Joules 1.25 employed. For AA6063/3.75 WBA-based MMC's, minimum determined 5.83, thermal expansion 45 mm3. As percentage bagasse-reinforced increases, density material, amount corrosion loss, cost all decrease gradually. AA6063 matrix, with composition satisfactory specific loss. alloy composite's microstructure analysis enhanced material's mechanical characteristics, contributing its excellent capabilities. results test showed WBA-reinforced exhibited reduced weight loss due corrosion, whereas an inappropriate SEM alloy/3.75 reinforcement-based MMC's exposed 3.5 NaCl solution has development pits as result localized attack corrosive environment. composite high shrinkage rate comparison %. characteristics stability presence hard phases like SiO2, Al2O3, Fe2O3, CaO, MgO, X-ray diffraction This it suitable use variety applications.

Language: Английский

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Synergistic Effects of Optimizing Stir Casting and Friction Stir Welding for WC and Al2O3 based Nano-Particulates Reinforced AA2014 and AA6061 Alloys: Mechanical, Weldability, Corrosion, and Microstructural Morphological Insights

Journal of Materials Research and Technology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

Language: Английский

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Exploring the synergistic mechanisms of mechanical, microstructural morphology, and corrosion characteristics in inconel 718-AISI 430 dissimilar weldment joints using ERNiCrMo-4 and ER2209 fillers: a comparative performance analysis

Archives of Civil and Mechanical Engineering, Journal Year: 2025, Volume and Issue: 25(2)

Published: Feb. 22, 2025

Language: Английский

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Assessing microstructural and mechanical characteristics of Ni/AZ91 composites manufactured using hot pressing technique for automotive applications

Materials Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown, P. 130793 - 130793

Published: March 1, 2025

Language: Английский

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