Development and Properties of Centrifugally Cast Silicon Nitride Reinforced Functionally Graded Copper Matrix Composite

Radhika, N.; Thirumalini, S.; Jojith, R.

doi:10.1007/s12633-018-0030-y

Cited by 10 publications

(14 citation statements)

References 34 publications

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“…Centrifugal casting was employed in these references to fabricate the FGCMs, and the Si 3 N 4 content was also the same (10%) in these papers. Figure 55 shows that while the hardness distribution in [86,119] is similar, a much higher range is observed in [115]. While Cu-11Ni-4Si alloy was used as the matrix in [86,119], Cu-10Sn-5Ni was used as the matrix in [115].…”

Section: Hardnessmentioning

confidence: 90%

“…Copper-based composites are attractive because of the high conductivity, good mechanical properties, and machinability of copper. Several copper-based FGCMs have been developed in the last few years using different ceramic reinforcements [86,94,[112][113][114][115][116][117][118][119][120]. As the density of copper is much higher than aluminium, most of the ceramic reinforcement particles reinforce the inner surface of copperbased FGCMs.…”

Section: Centrifugal Castingmentioning

confidence: 99%

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Review on developments of bulk functionally graded composite materials

Charan

Naik

Kota

et al. 2022

International Materials Reviews

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Monolithic components are often insufficient when a combination of conflicting properties, or a variation in properties at different regions within a material is required. Functionally graded composite materials (FGCM) are a relatively new class of materials with a systematic variation of the composition, microstructure, and properties along one direction. The graded structure offers tailorable property combinations not achievable with monolithic composites and significant recent research has been carried out on their development. An effort has been made in this article to review the latest developments on bulk FGCMs since 2015. The different processing techniques used for their fabrication have been discussed, highlighting their advantages, limitations, and recent advancements pertaining to FGCM fabrication. Various physical, mechanical, and thermal properties of FGCMs have been treated separately, and wherever possible, summary plots combining data from various research articles have been developed. Finally, potential areas for directing future FGCM research have been identified.

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Section: Hardnessmentioning

confidence: 90%

Section: Centrifugal Castingmentioning

confidence: 99%

Review on developments of bulk functionally graded composite materials

Charan

Naik

Kota

et al. 2022

International Materials Reviews

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“…the minimum fabricated shaft diameter was 25 and 20 mm for vertical and horizontal machines, respectively. The machine shaft bearings lives were calculated by using the following equation [1]: 6 10 10 60…”

Section: Design Of the Vertical And Horizontal Centrifugal Casting Mamentioning

confidence: 99%

“…It is used mainly for making pipes, tubes, bushings, cylinder sleeves (liners), gun barrels, sleeves, rods, rings, etc. [6][7][8][9][10]. Vertical centrifugal casting machine is essentially a pressure casting technique, where the mold is rotated in a vertical axis.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Centrifugal Casting Parameters of AlSi Alloy by using the Response Surface Methodology

Ali

2019

IJE

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Centrifugal casting is one of the advanced casting branches widely used in the metallurgical industry in which the centrifugal force helps strengthen the workpiece material. The present work attempt to study the effect of the horizontal and vertical centrifugal casting parameters included the centrifugal mold rotation speeds and G-factors values on the quality of the product. The work has been completed with design and fabricated of a low cost horizontal and vertical centrifugal casting machine with the main accessories for producing a hypoeutectic aluminum silicone (AlSi) alloy (content 10 % Si) specimens. The experimental results were analyzed and improved by using the statistical computer program "Design Expert 11" and response surface methodology (RSM). The results showed that for vertical and horizontal casting processes, the finest surfaces quality was achieved when working at mold rotation speed from 520 to 690 and 950 to 1230 RPM, i.e., with an average value of the G-factor = 69 and 50, respectively. The proof stress values were increased with increasing the mold rotation speed up to (690 RPM) and (1230 RPM) or used the G-factor value of 87.99 and 60.96 gave an increase in proof stress by 6.7 and (20.62% for vertical and horizontal casting experiments compared with gravitational casting, respectively. The obtained tensile strengths values were improved by 38.6 and 45.41 %, compared with the gravitational casting, respectively; while the percentage elongations were reduced to 0.281and 0.291 %; which means decreased by 33.45 and 31.69 % for the vertical and horizontal centrifugal casting compared with the values obtained by gravitational casting experiments, respectively.All metals, alloys, nonmetals and virtually any material that can be liquidized and pourable can be cast by centrifugal casting processes for producing an isotropic and a dense product, including carbon and alloy steels, gray and ductile iron, stainless steels, copper, aluminum and magnesium alloys, nickel, cobalt and titanium based alloys and also nonmetals, including plastics, ceramics, glasses [1], by using a stainless steel, cast iron and graphite mold materials [2]. The process has become widely used for producing special castings tubes, pipes, rolls, cylinder liners and other axisymmetric parts [3][4][5]. The final quality of the products is depending upon the rate of solidification, the rotational speeds of the mold and the molten metal flow pattern [5].Centrifugal casting machines are categorized into three designs based on the operating of the mold Surface Methodology

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“…Good interfacial bonding between the Y 2 O 3 particles and the A356 alloy prompts effective load transfer from the Y 2 O 3 particles to A356 alloy. This in turn reduces the crack propagation leading to major improvement in the tensile properties of the composites with reduction in ductility[20][21][22][23][24][25][26].ConclusionsAddition of Y 2 O 3 particles and presence of UT was found to signi cantly re ne the α-Al crystals from dendrite structure to ne equiaxed structure. Uniformly distributed Y 2 O 3 particles preferred to be present inside α-Al crystals which lead to re nement of α-Al crystals.…”

mentioning

confidence: 99%

Microstructure and mechanical properties of ultrasonically processed Al-7Si alloy / Y2O3 nanocomposite.

Kumar

Nampoothiri

Shalini

2022

Silicon

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The aim of the present study is to investigate the microstructure and mechanical properties of the A356 aluminum metal matrix composite reinforced with Y 2 O 3 particles. The composite is synthesized by adding 1 and 2 vol.% of reinforcement via stir casting assisted by ultrasonic treatment (UT). Microstructural contemplates shows improvement in the dispersion of nano Y 2 O 3 particles and decrease in the porosity level due to the ultrasound aided synthesis. The UT re nes the size of the Y 2 O 3 particles as well as helps to improve its dispersion. The secondary dendrite arm spacing of 2 vol.% Y 2 O 3 reinforced samples with 5 min UT is found to be signi cantly reduced to 12 µm as compared to that of the as-cast A356 alloy. Addition of 2 vol.% of nano Y 2 O 3 has signi cantly improved the hardness of the A356 alloy from 60 HV to 108 HV. A considerable increment in the YS and TS of the A356 alloy is observed with the of Y 2 O 3 and found to further improve with UT. However, small reduction in ductility is observed with the addition of Y 2 O 3 as well as ultrasonic treatment.

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Development and Properties of Centrifugally Cast Silicon Nitride Reinforced Functionally Graded Copper Matrix Composite

Cited by 10 publications

References 34 publications

Review on developments of bulk functionally graded composite materials

Review on developments of bulk functionally graded composite materials

Optimization of Centrifugal Casting Parameters of AlSi Alloy by using the Response Surface Methodology

Microstructure and mechanical properties of ultrasonically processed Al-7Si alloy / Y2O3 nanocomposite.

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