Fabrication of B4C particulate reinforced magnesium matrix composite by powder metallurgy

Jiang, Qi–Chuan; Wang, H.Y.; Ma, Bing; Wang, Y.; Zhao, Feng

doi:10.1016/j.jallcom.2004.06.015

Cited by 188 publications

(78 citation statements)

References 22 publications

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“…Recently, MMCs have been extensively investigated and implemented due to their promising advanced properties. Reinforcing particles, which are compatible with the matrix, are preferred in these composites [2][3][4][5][6][7][8]. Once again, nanoparticle-reinforced metal matrix composites are promising materials, and they are suitable for many applications [9].…”

Section: Introductionmentioning

confidence: 99%

Optimization by Using Taguchi Method of the Production of Magnesium-Matrix Carbide Reinforced Composites by Powder Metallurgy Method

Küçük

Elfarah

Islak

et al. 2017

Metals

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Abstract:The aim of this study was to determine the optimum production parameters in the production of magnesium matrix carbide-reinforced composites by using the powder metallurgy method. The parameter levels maximizing density (%), hardness (HB10), and bending strength (MPa) values were found by using the Taguchi method. The type of reinforcement, the amount of reinforcement, the sintering time, the sintering temperature, additive type, and additive rate were selected as the production parameters. Since the production of Mg and its alloys by using casting methods is problematic, the hot pressing method, a powder metallurgy method, was preferred in this study. Ceramic-based carbide particles were used as reinforcing materials in Mg matrix composite materials. B 4 C, SiC, Mo 2 C, and TiC carbides were preferred as the carbide. Microstructure and phase composition of the produced materials was examined with scanning electron microscope (SEM), X-ray diffractogram (XRD) and X-ray energy dispersive spectrometry (EDS). The hardness of the materials was measured by using a Universal Hardness device. The relative densities of the materials were determined according to Archimedes' principle. The bending strength properties of the materials were determined by using the three-point bending test. The optimum conditions were a sintering temperature of 500 • C, sintering duration of 5 min, additive type of B 4 C and additive rate of 2.5%, and the results obtained at these conditions were found to be as follows; relative density of 98.74 (%), hardness of 87.16 HB10 and bending strength of 193.65 MPa. SEM images taken from the fracture surfaces showed that the carbides added to the matrix had a relatively homogeneous distribution. XRD analyses revealed that the matrix was oxidized very little, and no phase formation occurred between the matrix and the carbides. Carbide addition caused a distinct hardness increase by showing the effect of distribution strengthening in the matrix.

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Section: Introductionmentioning

confidence: 99%

Optimization by Using Taguchi Method of the Production of Magnesium-Matrix Carbide Reinforced Composites by Powder Metallurgy Method

Küçük

Elfarah

Islak

et al. 2017

Metals

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“…Boron carbide (B 4 C) ceramics have excellent physical and mechanical properties, such as a high melting point and hardness, good abrasion resistance, high impact resistance, excellent resistance to chemical agents and high neutron absorption capabilities [1][2][3][4][5][6]. As a good ceramic material, boron carbide (B 4 C) has attracted attention in a wide variety of applications, including light-weight armour plating, blasting nozzles, mechanical seal faces, grinding tools, cutting tools and neutron absorption materials.…”

Section: Introductionmentioning

confidence: 99%

“…However, B 4 C ceramics are hardly sinterable and relatively brittle and thus face serious obstacles for any structural material because of their low flexural strength (200-300 MPa) and fracture toughness (2-3 MPa·m 1/2 ) [3,[7][8][9]. Recently, Al/B 4 C composites have received attention because they feature the mechanical properties of B 4 C enhanced by Al infiltration to the ceramic material [10,11]. However, a large amount of reaction products are formed during the infiltration process at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Ti Addition on the Residual Aluminium Content and Mechanical Properties of the B4C-Al Composites Produced by Vacuum Infiltration / Wpływ Dodatku Tytanu Na Resztkową Zawartość Aluminium I Właściwości Mechaniczne Kompozytów B4C-Al Wytworzonych Przez Infiltrację Próżniową

Cao

Wang

Xue

et al. 2015

Archives of Metallurgy and Materials

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The effect of Ti addition on the residual Al content and mechanical properties of B4C-Al composites fabricated by vacuum infiltration was investigated in the present study. The B4C-Al composite materials were fabricated using [Ti+B4C] preforms preheated at 1700ºC for 1 h and Al alloys infiltrated in vacuum atmosphere at 1100ºC for 2 h. The phase composition indicated that TiB2 has high wettability to Al as a result of the preheating. SEM and EDX results revealed a number of Al dimples are on the fracture surface due to the existence of TiB2. When the content of added Ti increases to 30%, the [Ti+B4C] preform is characterized by a minimal porosity (33.11%) and a maximal density, a corresponding amount of residual Al of 33.11% and a minimal fracture toughness (5.03 MPa·m1/2) with a hardness of up to 63 HRC. The residual Al and the mechanical properties of the composite material preform were determined by the Ti content of the preform.

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“…[14].Titanium with SiC composites are used in high-temperature structures applications. The nanosized hybrid particles of SiC and Al 2 O 3 are reinforced with magnesium material by using powder metallurgy route involving microwave sintering followed by hot extrusion and results obtained with minimal porosity and fairly well distribution and found that improvements in hardness, yield strength and Ultimate Tensile Strength [15].The reinforcement of varying B 4 C particles with Magnesium metal matrix composites are fabricated with minimal micro porosity by powder metallurgy technique and results revealed that improvements in hardness and wear resistance [16]. The magnesium metal matrix composites with TiB 2 are fabricated with powder metallurgy technique and increase in hardness from 41% to 181%.…”

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confidence: 99%

Synthesis and Investigation of Magnesium Matrix Composite with Titanium Oxide by Powder Metallurgy

A¹

2017

IJRASET

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The investigations of magnesium based matrix material reinforced with the TiO 2 particles with various weight ratios of 2.5, 5, 7.5 and 10% are presented in this research paper. The purpose of this work is to elaborate the manufacturing processes of pure magnesium with the addition of Titanium oxide through the powder metallurgy route. The powder blending was done with the energetic ball and jar mill. The compaction pressure of 650Mpa is given to improve cold compaction. The Sintering temperature of 550 o C and holding time of 30 min was used to sinter the compacts to get better results. The microstructural analysis by scanning electron microscopy (SEM) for the starting powders and fabricated samples are carried out for the investigation. The mechanical properties are evaluated and the results proved that improvement in 13.8% ,17.8% and 29% for the density, hardness values and universal tensile strength. Keywords: Magnesium, Titanium oxide, SEM analysis, Mechanical properties, Powder metallurgy. I.INTRODUCTION Composite materials could be in the form of natural or synthetic which combines two or more chemically distinct materials in order to achieve improved properties over the individual materials. Usually matrix is a ductile or tough material and reinforcing materials are strong with various properties and in the form of particles, platelets, whiskers, short fibers, and continuously aligned fibers are combined together to get desired properties, otherwise that was not available in any single conventional material. The incorporation of reinforcement increases stiffness, specific strength, design flexibility, corrosion resistance, fracture resistance, durability and reducing relative investment. The advanced composites are used in aerospace, sporting goods, military and commercial aircraft, etc. magnesium based composites used in space and satellite structures, Antenna structures, Helicopter transmission structures with the reinforcing particles of Graphite, boron, alumina respectively. The composites can be used in thermal management and support systems for electronic packages like integrated circuit materials. Magnesium is useful in manufacturing of electronic devices such as cameras, laptops and mobile phones [1][2][3]. It is well known that the elastic properties of metal matrix composites are strongly influenced by micro structural parameters of the reinforcement such as shape, size, orientation, distribution and volume fraction [4]. The mechanical properties of composites are controlled by the structure and properties of the reinforcements [5]. There are several metal matrix processing technologies available in modern world era. The powder metallurgy process followed by hot extrusion and casting methods is playing vital roles among them. The major advantage of powder metallurgy over other methods is that small elements with near net shape could be manufactured with dimensional stability, whereas manufacturing of locally reinforced elements from composite materials with excellent surface quality s...

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Fabrication of B4C particulate reinforced magnesium matrix composite by powder metallurgy

Cited by 188 publications

References 22 publications

Optimization by Using Taguchi Method of the Production of Magnesium-Matrix Carbide Reinforced Composites by Powder Metallurgy Method

Optimization by Using Taguchi Method of the Production of Magnesium-Matrix Carbide Reinforced Composites by Powder Metallurgy Method

Effect of Ti Addition on the Residual Aluminium Content and Mechanical Properties of the B4C-Al Composites Produced by Vacuum Infiltration / Wpływ Dodatku Tytanu Na Resztkową Zawartość Aluminium I Właściwości Mechaniczne Kompozytów B4C-Al Wytworzonych Przez Infiltrację Próżniową

Synthesis and Investigation of Magnesium Matrix Composite with Titanium Oxide by Powder Metallurgy

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