Magnesium strengthened by SiC nanoparticles

Ferkel, H.; Mordike, B. L.

doi:10.1016/s0921-5093(00)01283-1

Cited by 369 publications

(170 citation statements)

References 17 publications

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“…The observation is similar with other researchers that synthesized metallic composites reinforced with nanoparticles using powder metallurgy technique [28,29]. …”

Section: Microstructuresupporting

confidence: 92%

Using Microwave Energy to Synthesize Light Weight/Energy Saving Magnesium Based Materials: A Review

Wong

Gupta

2015

Technologies

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Microwave energy can be used for the processing of a wide variety of materials. It is used most commonly for the heating of food and has been increasingly applied for processing of polymers; ceramics; metals; minerals and composites. The use of microwave energy allows rapid and volumetric heating where heat is generated from within the material instead of via radiative heat transfer from external heating elements. This paper aims to provide a review on the use of energy efficient and environment friendly microwave energy route to synthesize magnesium based materials reinforced with various types of metallic and ceramic reinforcements. Magnesium composites are extremely attractive for weight critical applications in automotive; aerospace; electronics and transportation sectors. The magnesium composites were prepared using blend-compact-microwave sintering-extrusion methodology. Microwave sintering allowed a significant reduction of 80% in both processing time and energy consumption over conventional sintering without any detrimental effect on the properties of the synthesized magnesium composites. Physical; microstructure and mechanical properties of microwave sintered magnesium composites will also be discussed and compared with magnesium composites processed by conventional liquid and solid processing techniques. OPEN ACCESSTechnologies 2015, 3 2

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“…The observation is similar with other researchers that synthesized metallic composites reinforced with nanoparticles using powder metallurgy technique [28,29]. …”

Section: Microstructuresupporting

confidence: 92%

Using Microwave Energy to Synthesize Light Weight/Energy Saving Magnesium Based Materials: A Review

Wong

Gupta

2015

Technologies

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“…6(a). Some paper [1][2][3] about the mechanical properties of ceramics particle strengthened pure Mg matrix composites fabricated using powder metallurgical processes has listed the Vikers hardness values of 65 HV-179 HV.…”

Section: −3mentioning

confidence: 99%

“…However, Mg alloys generally have inferior mechanical properties such as hardness, 0.2% proof stress, the tensile strength and bending strength compared to Al alloys. To improve these mechanical properties, composites of pure Mg reinforced by ceramic particles have been fabricated using powder metallurgical processes, and their mechanical properties have been investigated [1][2][3][4] . In a previous study 5- 7) , we prepared Al 2 O 3 particles uniformly dispersed in pure Mg (Al 2 O 3 /Mg) powders by mechanical milling (MM) powder mixtures of pure Mg powder and 0-30 vol% Al 2 O 3 particles, and then investigated the mechanical properties of compacts obtained from these Al 2 O 3 / Mg powders by spark plasma sintering (SPS).…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Laminated Spark Plasma Sintered Compacts Composed of Alumina-Particle-Dispersed Magnesium and Magnesium

Kawamori

Fujiwara

Nagai³

et al. 2017

Mater. Trans.

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To reduce the weight of 20 vol% Al 2 O 3 -particle-dispersed Mg (Al 2 O 3 /Mg) compacts produced by spark plasma sintering (SPS), which are much harder than practical high strength AZ91 Mg alloys, 20/0/20 vol% laminated SPS compacts sandwiching a lightweight 0 vol% Al 2 O 3 /Mg (0 vol%) layer between two 20 vol% Al 2 O 3 /Mg (20 vol%) layers were fabricated by a mechanical milling/SPS process, and their microstructures and mechanical properties were investigated. The density of the 20/0/20 vol% laminated SPS compacts was 1.88 Mg·m , and they could be lightened to approximately 80% of the weight of equivalent 20 vol% SPS compacts. The 20/0/20 vol% laminated SPS compacts had a slightly higher hardness than the 20 vol% SPS compacts and a much higher hardness than AZ91 alloys. The bending strength of the 20/0/20 vol% laminated SPS compacts was almost the same as that of the 20 vol% SPS compacts, and was higher than the value calculated from those of the 20 and 0 vol% SPS compacts using the rule of mixtures. A new phase appeared at the at interface between the 20 and 0 vol% layers with excellent adhesion to the adjoining layers, so this phase probably had a strong effect on the bending strength of the 20/0/20 vol% laminated SPS compacts. The new phase generated a monotonically decreasing hardness gradient from the 20 vol% layer to the 0 vol% layer and was formed by diffusion of Al and O from the 20 vol% layer and diffusion of Mg from the 0 vol% layer. The new phase most likely consisted of αMg, MgO, and Mg 17 Al 12 , and the concentrations of Al in the αMg, MgO, and Mg 17 Al 12 components of this phase were considered to decrease from the 20 vol% layer to the 0 vol% layer.

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“…Metal matrix composites (MMCs) are generally reinforced with micro-sized ceramic/oxide reinforcements in the shape of fibers or particles [3]. The sizes of reinforcing particulates in MMCs range from a few to several hundred micrometers [4]. The research on discontinuous particulate/fiber-reinforced MMCs has been a focus because of their low manufacturing cost, ease of production, and macroscopically isotropic mechanical properties [5,6].…”

Section: Introductionmentioning

confidence: 99%

Milling of Nanoparticles Reinforced Al-Based Metal Matrix Composites

et al. 2018

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This study investigated the face milling of nanoparticles reinforced Al-based metal matrix composites (nano-MMCs) using a single insert milling tool. The effects of feed and speed on machined surfaces in terms of surface roughness, surface profile, surface appearance, chip surface, chip ratio, machining forces, and force signals were analyzed. It was found that surface roughness of machined surfaces increased with the increase of feed up to the speed of 60 mm/min. However, at the higher speed (100-140 mm/min), the variation of surface roughness was minor with the increase of feed. The machined surfaces contained the marks of cutting tools, lobes of material flow in layers, pits and craters. The chip ratio increased with the increase of feed at all speeds. The top chip surfaces were full of wrinkles in all cases, though the bottom surfaces carried the evidence of friction, adhesion, and deformed material layers. The effect of feed on machining forces was evident at all speeds. The machining speed was found not to affect machining forces noticeably at a lower feed, but those decreased with the increase of speed for the high feed scenario.

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Magnesium strengthened by SiC nanoparticles

Cited by 369 publications

References 17 publications

Using Microwave Energy to Synthesize Light Weight/Energy Saving Magnesium Based Materials: A Review

Using Microwave Energy to Synthesize Light Weight/Energy Saving Magnesium Based Materials: A Review

Fabrication of Laminated Spark Plasma Sintered Compacts Composed of Alumina-Particle-Dispersed Magnesium and Magnesium

Milling of Nanoparticles Reinforced Al-Based Metal Matrix Composites

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