Mechanical and microstructural characteristics of Cu–Sn–Zn/ Gr metal matrix composites processed by powder metallurgy for bearing materials

Susilowati, Sri Endah; Fudholi, Ahmad; Sumardiyanto, Didit

doi:10.1016/j.rineng.2022.100377

Cited by 17 publications

(5 citation statements)

References 19 publications

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“…kecepatan produksi tinggi karena dapat memproduksi produk secara massal, dapat memproduksi produk dengan bentuk yang rumit dengan ukuran kecil, serta mudah dalam mengontrol parameter proses produk serta mampu memproduksi produk dengan dimensi yang lebih akurat [1]. Proses utama pada teknologi metalurgi serbuk ada tiga tahapan yaitu tahapan proses pencampuran serbuk matrik dengan serbuk penguat, tahapan proses penekanan atau kompaksi dan tahapan proses sintering [5].…”

Section: Pendahuluanunclassified

Pengaruh Pemadatan Dua-arah Penekanan Terhadap Densitas dan Kekerasan AMC diperkuat Serbuk Silikon Dioksida

Irwansyah,

Rodika,

Wanto

et al. 2023

infotekmesin

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The compaction method of powder metallurgy technology is an important process in influencing the density and hardness of the resulting product. This study aims to determine the effect of a one-way compaction method compared to a two-way compaction method on the density and hardness of the resulting composite product. The experimental method for making aluminum matrix composites with silica sand reinforcement applies a compaction pressure of 4500 Psi. Mixing utilizing mechanical alloying used a horizontal ball mill machine. The density test refers to the Archimedes principle with the ASTM B962-17 standard, while the Rockwell Brinel hardness test uses the ASTM E110-14 standard. The results of the sample density test of the two-way compaction method of compaction showed a higher value compared to the sample density of the one-way compaction results, respectively; values of 2.132 g/cm3 and 2.119 g/cm3. The hardness value of the sample resulting from two-way compression compaction also has a higher value than the sample hardness resulting from one-way compression compaction, respectively; worth 43.67 HRB and 36.78 HRB. Furthermore, based on the results of microstructural analysis, the interlocking bonding occurs in composite samples with two-way compaction. It is also better than the interlocking mechanical bonding in composite samples resulting from one-way compaction.

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Section: Pendahuluanunclassified

Pengaruh Pemadatan Dua-arah Penekanan Terhadap Densitas dan Kekerasan AMC diperkuat Serbuk Silikon Dioksida

Irwansyah,

Rodika,

Wanto

et al. 2023

infotekmesin

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“…The SS304 base metal and VZ2250 BFM contribute to the presence of these phases. Besides, the Cu20Sn6 phase is formed when Sn diffuses into Cu, and it tends to increase the tensile strength of the material [23]. Additionally, Fe0.5Mn0.2Ni0.3 peak then arose at 2θ of 43.61°, 50.78°, and 74.42°, and the brittle phase MnNi3 [24] arose at 2θ of 43.61°, 5078°, and 74.72°.…”

Section: Microstructural Analysis Of Brazed Cu/porous Ni/ss304mentioning

confidence: 99%

Investigation on Microstructure and Compressive Strength of Brazing Porous Nickel to Copper and Stainless Steel

Rozaimay,

Tuan Zahari,

Buys

et al. 2023

Acta Metall Slovaca

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This paper investigates the effects of brazing temperatures on the microstructure and compressive strength for brazing porous nickel to copper and stainless steel using VZ2250 as the brazing filler metal. A high vacuum furnace is used to braze the samples. Three different brazing process parameters were set with a heating and cooling rate of 10°C/min, respectively. The characteristics of the joint interface have been investigated to evaluate the performance of the brazed samples by use of scanning electron microscope, energy-dispersive X-Ray spectroscope, X-Ray diffractometer, and Instron Universal Testing machine. The data obtained has been quantitively analyzed to confirm the diffusion of the BFM during the brazing process. It has been found that the diffusion process resulted in an increase in the rigidity of the porous Ni. The compressive strength tests for the brazed joint showed that the maximum compressive strength can be achieved for brazing at 680°C. The highest compressive strength value has been justified by quantitative analysis of the microstructural data. It has been proved that the VZ2250 BFM effectively diffused into the porous Ni at the brazing temperature of 680°C; Cu3P and Cu6Sn5 were detected at the brazed Interface 1, whereas MnNi3 phase at the brazed Interface 2.

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“…Susilowati et al [10] and Cui et al [11] investigate the properties of self-lubricating, sintered sliding materials by varying the mass ratios of the alloying elements and determine an ideal value with regard to the mechanical and tribological properties. Neacşu et al [12] experimentally validate a simulation to determine the Stribeck curve of sintered journal bearings and achieve a high rate of correlation between experimental results and simulation.…”

Section: State Of Artmentioning

confidence: 99%

Application Limits of small dimensioned Sintered Journal Bearings in Grease-lubricated Planetary Gears

Huber,

Monz

2023

Proceedings of the 9th World Congress on Mechanical, Chemical, and Material Engineering

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The design of machine elements as sintered components offers further potential in addition to economic advantages in production and technical innovations, such as the use of self-lubricating components. As a result, sintered planetary gears are now being used in planetary gear units, with a journal bearing bushing integrated in the bore. In this context, it is necessary both to consider the material requirements in the joint material selection and to optimally resolve controversial design variables of both, the gear and the journal bearing, such as the gear width and the journal bearing width. On the occasion of this trend in development, the present research work deals with the application limits of sintered planetary journal bearings under grease lubrication. In the field of drive technology, it can be observed that these cannot be designed reliably according to the usual design guidelines, such as DIN 31652 1-4, VDI 2204 1-4 or ISO 7902 1-3 for conventional journal bearings. The result is failure of the bearing due to seizure and wear. Therefore, the decisive parameters need to be determined and further analysed. Due to the mutual influence on the operating performance of journal bearing and gearing and the resulting large number of parameters sets, it is not promising to systematically optimize the journal bearing system in gearbox tests. Therefore, the influence of the planetary gear is first abstracted. On a test bench specially developed for this application, the operating behaviour of a journal bearing bushing rotating around a stationary shaft is mapped and tested analogously to the operating conditions in a planetary gear. In the project, characteristic diagrams are thus generated for the characterization of sintered journal bearings. The results obtained by varying the parameter sets are presented and discussed.

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Mechanical and microstructural characteristics of Cu–Sn–Zn/ Gr metal matrix composites processed by powder metallurgy for bearing materials

Cited by 17 publications

References 19 publications

Pengaruh Pemadatan Dua-arah Penekanan Terhadap Densitas dan Kekerasan AMC diperkuat Serbuk Silikon Dioksida

Pengaruh Pemadatan Dua-arah Penekanan Terhadap Densitas dan Kekerasan AMC diperkuat Serbuk Silikon Dioksida

Investigation on Microstructure and Compressive Strength of Brazing Porous Nickel to Copper and Stainless Steel

Application Limits of small dimensioned Sintered Journal Bearings in Grease-lubricated Planetary Gears

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