Hydrothermal carbon effect on iron matrix composites produced by powder metallurgy

Şimşir, Hamza; Akgül, Yasin; Erden, Mehmet Akif

doi:10.1016/j.matchemphys.2019.122557

Cited by 19 publications

(22 citation statements)

References 38 publications

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“…In the powder metallurgy technique, porosities are formed in the structure during the sintering process. 20 Thus, all samples have slightly lower densities than their theoretical densities. However, the percent porosity increased in proportion to the HTC amount.…”

Section: Characterization Of Microstructurementioning

confidence: 88%

“…Propagation of the cracks is why the corrosion happens rapidly. 20 Therefore, corrosion resistance increased with the addition of HTCs into Al7075.…”

Section: Characterization Of Corrosion Propertiesmentioning

confidence: 99%

“…Furthermore, the HTCs' surface possesses strongly oxidized functional groups. 20 In our previous study, HTCs were used as a reinforcement for metal matrix composites for the first time, and an improvement in the mechanical and corrosion properties of iron was observed. 20 Moreover, studies show that usage of biomass derived materials in various applications such as metal matrix composites, thermoelectric materials, advance ceramic materials, etc.…”

Section: Introductionmentioning

confidence: 97%

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Investigation of the properties of Al7075-HTC composites produced by powder metallurgy

Arsun

Akgül

Şimşir

2021

Journal of Composite Materials

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Even though aluminium matrix composites have been used in many different application areas, the improvement of its mechanical, tribological, and corrosion properties is crucial for enlargement of its application areas. To achieve this, many ceramic-based and carbon-based additives have been used. However, eco-friendly and low production cost hydrothermal carbons (HTCs) have not been used, yet. In this study, three different amounts of HTCs (0.25, 0.50, and 1.00 wt.%) produced from cellulose were used as a reinforcement material in Al 7075 by powder metallurgy for the first time. According to the mechanical, tribological, and corrosion test results, all of the mentioned properties of Al 7075 alloy were improved by reinforcing with HTCs. As a consequence of this study, HTCs can be used as appropriate reinforcement materials for the aluminium matrix composites.

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Section: Characterization Of Microstructurementioning

confidence: 88%

“…Propagation of the cracks is why the corrosion happens rapidly. 20 Therefore, corrosion resistance increased with the addition of HTCs into Al7075.…”

Section: Characterization Of Corrosion Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

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Investigation of the properties of Al7075-HTC composites produced by powder metallurgy

Arsun

Akgül

Şimşir

2021

Journal of Composite Materials

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“…Numunelerin korozyon potansiyelleri (Ecorr), korozyon akım yoğunlukları ve korozyon oranları Tablo 2'de gösterilmiştir. Numunelere ait korozyon oranları ise ASTM-G012-89 standardına göre hesaplanmıştır (Eşitlik 1) [24], [25].…”

Section: Malzemelerin üRetimiunclassified

Yüzeyi ZnO Nanopartikülleri ile Kaplanmış Demir Matrisli Malzemelerin Karakterizasyonu ve Mekanik Özelliklerinin İncelenmesi

Şimşir

2020

Academic Platform Journal of Engineering and Science

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Bu çalışmanın amacı toz metalürjisi ile demir ve demir-karbon alaşım malzemelerinin üretilmesi ve bu malzemelerin çinko oksit (ZnO) ile kaplanmasıyla mekanik özelliklerdeki artışı ortaya çıkarmaktır. Bu amaçla, demir ve demir-karbon alaşımı malzemeler toz metalürjisi ile üretilmiştir. Karbon malzeme olarak, aktif karbon, grafit, grafen, karbon nanotüp, vb. gibi yaygın kullanılan karbon malzemelere alternatif olabilecek, glukozdan sentezlenen hidrotermal karbonlar kullanılmıştır. Karbonlu ve karbonsuz demir malzemelerin yüzeyi SILAR metoduyla yaklaşık 200±17 nm uzunluğundaki çinko oksit partikülleri tarafından kaplanmıştır. Bu kompozitlerin yapısı SEM, SEM-EDX ve XRD analizleri ile karakterize edilmiştir. Malzemelerin mekanik özelliklerine ZnO kaplamanın etkisi ise sertlik ve korozyon testleri ile incelenmiştir. Bu sonuçlara göre, ZnO kaplanmış kompozitlerin hem sertlik değerlerinde (%44 ve %73) hem de korozyon dayanımlarında (%118 ve %60) kaplamasız malzemelere kıyasla önemli derece artış meydana gelmiştir.

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“…PM is the process of breaking metal and alloy powders into pieces without melting them under certain pressure and temperature. The prepared powders are bonded to each other by diffusion through sintering heat treatment, increasing the strength of the material [12,13]. Despite the fact that the present steels are created as flat and tubular items, the making of forged steels has also accelerated in recent years.…”

Section: Introductionmentioning

confidence: 99%

Investigation of microstructure, mechanical and machinability properties of Mo-added steel produced by powder metallurgy method

Erden

Yaşar

Korkmaz

et al. 2021

Int J Adv Manuf Technol

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This study presents the impact of molybdenum (Mo) inclusion on microstructure, mechanical, and machinability behavior of steels manufactured with powder metallurgy (PM) approach. PM steel samples with different molybdenum ratios were pressed at 750-MPa pressing pressure and sintered in the atmosphere-controlled tube furnace at 1400°C for 1 h. While particle size and distribution of phases of PM steels with different molybdenum ratios were determined by optical microscope, mechanical properties were determined by applying tensile test. The results were observed that 3% Mo weight-added steel displayed the maximum yield and tensile strength. In addition, the machinability properties of 3% Mo-added steel, which has the highest yield and tensile strength, were investigated. In this work, we researched the thrust force and surface roughness as machinability output, and drilling parameters on the output were determined by utilizing analysis of variance. Finally, SEM images were taken from the inner surfaces of the machined holes and the fractured surfaces from tensile test, and information about the machinability of this alloy produced with PM was presented. As a result, an increase in yield and tensile strength and a reduction in strain were identified with the increase in Mo content. Moreover, the coated cutting tools are better on the machining output than the uncoated cutting tools in terms of green environment. The most important factors on the Fz and Ra are the coating condition and the feed rate with 56.53% and 43.62% PCR, respectively.

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Hydrothermal carbon effect on iron matrix composites produced by powder metallurgy

Cited by 19 publications

References 38 publications

Investigation of the properties of Al7075-HTC composites produced by powder metallurgy

Investigation of the properties of Al7075-HTC composites produced by powder metallurgy

Yüzeyi ZnO Nanopartikülleri ile Kaplanmış Demir Matrisli Malzemelerin Karakterizasyonu ve Mekanik Özelliklerinin İncelenmesi

Investigation of microstructure, mechanical and machinability properties of Mo-added steel produced by powder metallurgy method

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