Microstructure, wear and corrosion properties of NiB-TiC composite materials produced by powder metallurgy method

Akkaş, Mehmet; Islak, Serkan

doi:10.2298/sos1903327a

Cited by 15 publications

(6 citation statements)

References 20 publications

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“…As a result of studies conducted on the mechanical and tribological performance of the hybrid composites they produced, Devaganesh and colleagues noted that the wear rate in the material produced as Al7075 + 5 % SiC+5 % hBN was the lowest [21]. A SEM investigation was used to determine wear mechanism of experiment samples in especially most wear articles [22]. As a result of sintering and wear testing applications, the obtained SEM images of the wear surface of AA 7075 aluminum material are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Investigation of the microstructure-hardness and wear performances of hybrid/composite materials Al2O3/SiC particle reinforced in AA 7075 matrix

2022

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As a result of advances in science and technology, the importance of metal matrix composite materials is increasing gradually today. However, in many studies, composite production is carried out with monotype ceramic particle reinforcement. In this study, the production, microstructure-hardness, and wear performance of composite-hybrid materials that had AA 7075 aluminum powder metal matrix and were reinforced by SiC and Al2O3 ceramic particles at different ratios were examined. The prepared Matrix and reinforcement powder mixtures were mixed for half an hour in the three-axis Turbula T2F type mixer and then, pressed unidirectionally and cylindrically under the pressure of 700 MPa. The pressed samples were sintered for 1 h at a temperature of 600oC in the argon atmosphere. Microstructure examinations were carried out using SEM (Scanning Electron Microscope) and optical microscope devices, while hardness measurements were obtained as a result of Brinell measurement. Wear performance of the test samples were tested in the Pin-on-disk type device at 10 N load and 500 rpm rotation speed by depending on the wear distances at 1000, 1500 and 2000 m. It was observed that hardness increased as the amount of ceramic particle in composite-hybrid samples increased. As a result of wear tests, in hybrid composites, compared to single-phase ceramic particle reinforced composites, weight losses increased depending on the increase in the reinforcement amount.

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Section: Resultsmentioning

confidence: 99%

Investigation of the microstructure-hardness and wear performances of hybrid/composite materials Al2O3/SiC particle reinforced in AA 7075 matrix

2022

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“…Among the measured corrosion current values, the smallest value belongs to copper‐nickel+boron carbide sample (106 μA cm −2 ). In corrosion science, the general approach to corrosion is that low corrosion current and high corrosion potential means low corrosion rate or high corrosion resistance [14–16]. According to this approach, it is the copper‐nickel+10 % silicon carbide sample which is the most resistant to corrosion among the composites.…”

Section: Resultsmentioning

confidence: 99%

Production and characterization of boron carbide and silicon carbide reinforced copper‐nickel composites by powder metallurgy method

Akkaş

2021

Materialwissenschaft Werkst

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In this study, composite samples were produced by reinforcing boron carbide and silicon carbide particles in different rates by weight into copper‐nickel powder mixture using powder metallurgy method. The prepared powder mixtures were cold pressed under 600 MPa pressure and pelletized. The pelletized samples were then sintered in an atmosphere‐controlled furnace. Scanning electron microscopy to determine the microstructure of the produced samples and x‐ray diffraction method analysis to determine the phases forming in the structure of the produced samples were used and microhardness was taken to determine the effect of boron carbide and silicon carbide on hardness. In addition to that, the mechanical properties the transverse rupture strength were investigated using three‐point bending tests. The corrosion tests were performed potentiodynamic polarization curves of the samples in 3.5 % sodium chloride solution. The highest hardness value was measured as 162 HV 0.05 in the sample reinforced with 10 % boron carbide. As the amount of silicon carbide increased, the corrosion resistance of the composite increased. Moreover, as the amount of boron carbide increased, the corrosion resistance of the composite decreased. Load‐contact depth values were examined, copper‐nickel+10 % silicon carbide has the highest peak depth of 48.12.

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“…The parts produced by this method have a less rough surface than the parts produced by other methods and often do not require secondary processing. Homogeneous distribution of the quality, completely controllable ingredient and content, and low unit cost make powder metallurgy as a unique production method in the production industry [8][9][10][11][12][13]. Thus, it was found that approximately 97 % of the material was used in mass production with PM.…”

Section: Introductionmentioning

confidence: 99%

The investigation of the effect of cu addition on the Nb-V microalloyed steel produced by powder metallurgy

et al. 2022

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In this work, the effect of Cu content on the microstructures, mechanical properties and electrical conductivity of Nb-V added microalloyed powder metallurgy (PM) steels were investigated. Microalloyed steel samples were pressed at 750 MPa and sintered at 1400oC in argon atmosphere for 1 h. The grain size and phase distribution of the microalloy steels were determined by optical microscope. The precipitates and fracture surface of samples were analyzed with the help of SEM and EDS analyses. Tensile test, hardness test and electrical conductivity measurement were carried out for the Nb-V added microalloyed steel with different Cu content. Results indicated that 10 wt.% Cu added PM microalloyed steel showed the highest values in yield strength (YS) and ultimate tensile strength (UTS). However, when the amount of Cu content increased from 10 to 15 wt.%, YS and UTS decreased. Elongation also tends to decrease with increasing Cu content. Although the electrical conductivity in general increased with the addition of Cu, a decrease in some conductivity was observed in the addition of 15 wt.% Cu.

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Microstructure, wear and corrosion properties of NiB-TiC composite materials produced by powder metallurgy method

Cited by 15 publications

References 20 publications

Investigation of the microstructure-hardness and wear performances of hybrid/composite materials Al2O3/SiC particle reinforced in AA 7075 matrix

Investigation of the microstructure-hardness and wear performances of hybrid/composite materials Al2O3/SiC particle reinforced in AA 7075 matrix

Production and characterization of boron carbide and silicon carbide reinforced copper‐nickel composites by powder metallurgy method

The investigation of the effect of cu addition on the Nb-V microalloyed steel produced by powder metallurgy

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