Influence of B4C powder reinforcement on coating structure, microhardness and wear in friction surfacing

Özler, Latif; Tosun, Gül; Özcan, Mehmet Erbil

doi:10.1080/10426914.2020.1772480

Cited by 12 publications

(6 citation statements)

References 29 publications

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“…Abrasive wear was predominantly prominent in Ti-added coating (Figure 8d). It has been determined that the predominant wear type in the wear mechanisms of Ti-added samples is abrasive wear (Ding et al, 2018;Özler et al, 2020).…”

Section: Figure 5 the Effects Of Parameters On Wear Amount A) Wear Di...mentioning

confidence: 99%

The Effect of the Parameters on Al 7075 Coated with MAO Method by Adding Nano Ti-Powder

Özcan

Özler

2022

Gazi University Journal of Science Part A: Engineering and Innovation

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Coating processes are carried out in many areas of industry to improve the surface properties of materials such as wear and corrosion resistance or appearance. One of these coating processes is ceramic-based surface coatings. In order to obtain harder, denser and more uniform coatings, the substrate material is coated with a ceramic-based material at the desired thickness. In this study, 7075 series aluminum was coated with nano Ti powder and non-additive micro arc oxidation (MAO) method in a solution consisting of KOH, NaAlO2 and Na3PO4, and the effects of process parameters on coating thickness and wear behavior were experimentally investigated and the results were analyzed. According to the results obtained, it was observed that as the coating voltage, frequency and coating time increased, the wear rate decreased and a harder structure against wear is obtained. In addition, it was determined that the samples with nano titanium powder were less worn than the non-additive samples. According to SEM, EDX and XRD analyses, Al2O3 phase was observed in the coatings made without adding titanium particles; It has been observed that in addition to the Al2O3 main phase, TiO2 and SiO phases are also formed in titanium doped coatings.

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Section: Figure 5 the Effects Of Parameters On Wear Amount A) Wear Di...mentioning

confidence: 99%

The Effect of the Parameters on Al 7075 Coated with MAO Method by Adding Nano Ti-Powder

Özcan

Özler

2022

Gazi University Journal of Science Part A: Engineering and Innovation

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“…Ni et al [32] studied the B 4 C particle size effect in Ti-matrix composites and found that the size of B 4 C directly affects the mechanical properties and microstructure. Özler et al [33] studied B 4 C material reinforcement influence by not only gradient coating but also powder laying processes to analyze coating structure, micro-hardness and wear. Mohammad Sharifi et al [4] stated that the wear resistance of Metal-Matrix-Composites could be improved by using B 4 C particles.…”

Section: Introductionmentioning

confidence: 99%

Microstructural evaluation and wear behavior of B₄C particle reinforced TiO₂-SiO₂-ZnO compound by hot-pressing method

Kaya

2023

Mater. Res. Express

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In this study, different wt% of B4C material added to TiO2, ZnO, SiO2 materials known with distinguished properties by hot-pressing method to produce new materials. Characterization of the materials were performed by using XRD, SEM and EDS. The micro-hardness of the materials was measured and the wear characteristics of B4C added materials were determined by subjecting them to wear loads of 5N, 10N and 15N. In XRD, it was observed that the intensity of the peak was decreased depending on the increase in B4C content. In SEM, it was determined that there was a two-phase structure with complex boundaries and indefinite grain boundary formation. Besides, it was determined that elements in the EDS and the compounds in the XRD supported each other. In wear analyzes, it was seen that as the wear load increased, the depth and width of the wear track in all materials increased. Furthermore, as the weight ratio of B4C material in the composition was increased, the weight loss at different wear loads was decreased and the lowest weight loss was found in Ti45Si15Zn20B20 material. Moreover, it was observed that the wear track and its depth were inversely proportional to the increasing B4C content in the compound.

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“…Further technically useful features of the process include the possibility to deposit dissimilar materials without dilution and to apply several layers of different materials on top of each other or overlapping to create functional coatings, transition layers with a gradient in a specific property, or an approach of additive layer manufacturing [ 6 , 7 , 8 ]. Adding a powder into the stud allows the formation of composites during deposition, although the resulting particle distribution is inhomogeneous due to the complex and insufficiently understood material flow [ 9 , 10 , 11 , 12 ]. A photograph of the ongoing process is shown in Figure 1 a.…”

Section: Introductionmentioning

confidence: 99%

“…Mechanical processing, additionally, also causes non-soluble phases to break up or become spherical [ 3 , 20 ]. Such microstructural changes have been shown to be beneficial to the wear resistance of a material and result in less wear in FS-processed material compared to a conventional equilibrium microstructure [ 9 , 11 , 21 ]. Silicon (Si) is an important alloying element of aluminum (Al).…”

Section: Introductionmentioning

confidence: 99%

Effects of Microstructure Modification by Friction Surfacing on Wear Behavior of Al Alloys with Different Si Contents

et al. 2022

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In this work, Al alloys with 6.6%, 10.4%, and 14.6% Si were deposited as thick coatings by Friction Surfacing (FS), resulting in grain refinement and spheroidization of needle-shaped eutectic Si phase. Lubricated sliding wear tests were performed on a pin-on-disc tribometer using Al-Si alloys in as-cast and FS processed states as pins and 42CrMo4 steel discs. The chemical composition of the worn surfaces was analyzed by X-ray photoelectron spectroscopy (XPS). The wear mechanisms were studied by scanning electron microscopy (SEM) and focused ion beam (FIB), and the wear was evaluated by measuring the weight loss of the samples. For the hypoeutectic alloys, spheroidization of the Si phase particles in particular leads to a significant improvement in wear resistance. The needle-shaped Si phase in as-cast state fractures during the wear test and small fragments easily detach from the surface. The spherical Si phase particles in the FS state also break away from the surface, but to a smaller extent. No reduction in wear due to FS was observed for the hypereutectic alloy. Here, large bulky primary Si phase particles are already present in the as-cast state and do not change significantly during FS, providing high wear resistance in both material states. This study highlights the mechanisms and limitations of improved wear resistance of Si-rich Al alloys deposited as thick coatings by Friction Surfacing.

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Influence of B4C powder reinforcement on coating structure, microhardness and wear in friction surfacing

Cited by 12 publications

References 29 publications

The Effect of the Parameters on Al 7075 Coated with MAO Method by Adding Nano Ti-Powder

The Effect of the Parameters on Al 7075 Coated with MAO Method by Adding Nano Ti-Powder

Microstructural evaluation and wear behavior of B₄C particle reinforced TiO₂-SiO₂-ZnO compound by hot-pressing method

Effects of Microstructure Modification by Friction Surfacing on Wear Behavior of Al Alloys with Different Si Contents

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Influence of B4C powder reinforcement on coating structure, microhardness and wear in friction surfacing

Cited by 12 publications

References 29 publications

The Effect of the Parameters on Al 7075 Coated with MAO Method by Adding Nano Ti-Powder

The Effect of the Parameters on Al 7075 Coated with MAO Method by Adding Nano Ti-Powder

Microstructural evaluation and wear behavior of B4C particle reinforced TiO2-SiO2-ZnO compound by hot-pressing method

Effects of Microstructure Modification by Friction Surfacing on Wear Behavior of Al Alloys with Different Si Contents

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Microstructural evaluation and wear behavior of B₄C particle reinforced TiO₂-SiO₂-ZnO compound by hot-pressing method