Novel nanoprocessing route for bulk graphene nanoplatelets reinforced metal matrix nanocomposites

Chen, Lianyi; Konishi, Hiromi; Fehrenbacher, Axel; Ma, Chao; Xu, Jiaquan; Choi, Hongseok; Xu, Hui; Pfefferkorn, Frank E.; Li, Xiaochun

doi:10.1016/j.scriptamat.2012.03.013

Cited by 311 publications

(149 citation statements)

References 23 publications

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“…Many previous studies have focused on designing and fabricating new graphene reinforced metal matrix composites, including aluminum [7][8][9], copper [10,11], magnesium [12], and nickel matrix composites [13,14]. In most cases, it was observed that the mechanical properties were significantly enhanced, even with the addition of a very small amount of graphene.…”

Section: Introductionmentioning

confidence: 99%

Interaction of Edge Dislocations with Graphene Nanosheets in Graphene/Fe Composites

et al. 2018

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Abstract:Graphene is an ideal reinforcement material for metal-matrix composites owing to its exceptional mechanical properties. However, as a 2D layered material, graphene shows highly anisotropic behavior, which greatly affects the mechanical properties of graphene-based composites. In this study, the interaction between an edge dislocation (b = 1/2 (111)) and a pair of graphene nanosheets (GNSs) in GNS reinforced iron matrix composite (GNS/Fe) was investigated using molecular dynamic simulations under simple shearing conditions. We studied the cases wherein the GNS pair was parallel to the (110), (112), and (111) planes, respectively. The results showed that the GNS reinforcement can effectively hinder dislocation motion, which improves the yield strength. The interaction between the edge dislocation and the GNS pair parallel to the (112) plane showed the strongest effect of blocking dislocations among the three cases, resulting in increases in the shear modulus and yield stress of 107% and 1400%, respectively. This remarkable enhancement was attributed to the Orowan "by-passing" strengthening mechanism, whereas cross-slip of dislocation segments was observed during looping around GNSs. Our results might contribute to the development of high-strength iron matrix composites.

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Section: Introductionmentioning

confidence: 99%

Interaction of Edge Dislocations with Graphene Nanosheets in Graphene/Fe Composites

et al. 2018

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“…In addition, this process does not result in any reaction products between Mg and graphene. Hardness of magnesium composite increases by 78% with addition of 1.2 volume percent GNP [103].…”

Section: Gnp Reinforced Compositesmentioning

confidence: 99%

Graphene NanoPlatelets reinforced tantalum carbide consolidated by spark plasma sintering

Nieto

Lahiri

Agarwal

2013

Materials Science and Engineering: A

152

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“…The previous studies reveal that most of the researchers concentrated on fabricating aluminium matrix micro/nanocomposites via FSP using the ceramic particles such as Al 2 O 3 , SiC, B 4 C as reinforcement [16][17][18]. However, to the best of author's knowledge, limited information exists on their wear behaviour, no information exists on their corrosion behaviour, and there is no through work reporting the fabrication of AA6063/TiO 2 surface nanocomposites via FSP.…”

Section: Introductionmentioning

confidence: 99%

Effect of Nano-TiO$_2$ Particles on Wear and Corrosion Behaviour of AA6063 Surface Composite Fabricated by Friction Stir Processing

Muthukrishnan¹,

Balaji²,

Raghav³

2018

Metallofiz. Noveishie Tekhnol.

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In this investigation, the effect of nano-TiO 2 particles on wear and corrosion behaviour of AA6063 surface nanocomposites produced via friction stir processing (FSP) was studied. Microstructure analysis of fabricated surface nanocomposites was done with scanning electron microscope and found that TiO 2 nanoparticles are uniformly dispersed in the stir zone. The surface nanocomposites were characterized by hardness, wear and corrosion tests. The results revealed that the microhardness increases due to the presence of hard TiO 2 nanoparticles than as AA6063 alloy. The FSPed surface nanocomposites exhibited low frictional coefficient, excellent wear resistance and adequate corrosion resistance at 40 mm/min and as compared to that of the as cast alloy.Key words: AA6063 alloy, TiO 2 nanoparticles, friction stir processing, surface nanocomposites, microstructure, microhardness, wear behaviour, corrosion behaviour.Досліджено вплив наночастинок TiO 2 на характер зношування та корозії поверхневих нанокомпозитів стопу AA6063, одержаних за допомогою об-роблення тертям з перемішуванням. Проведено аналізу одержаних пове-рхневих нанокомпозитів методою сканувальної електронної мікроскопії та встановлено, що наночастинки TiO 2 рівномірно розподілені в зоні пе-ремішування. Для характеризації поверхневих нанокомпозитів було ви-користано випробування на твердість, зносостійкість і корозійну стій-кість. Показано, що мікротвердість підвищується у порівнянні зі стопом AA6063 завдяки наявності наночастинок TiO 2 . Оброблені методою тертя з Ключові слова: стоп AA6063, наночастинки TiO 2 , оброблення фрикцій-ним перемішуванням, поверхневі нанокомпозити, мікроструктура, мік-ротвердість, характеристики зношування, корозійні властивості.Исследовано влияние наночастиц TiO 2 на характер износа и коррозии по-верхностных нанокомпозитов сплава AA6063, полученных с помощью обработки трением с перемешиванием. Проведён анализ поверхностных нанокомпозитов методом сканирующей электронной микроскопии и по-казано, что наночастицы TiO 2 равномерно распределены в зоне переме-шивания. Для характеризации поверхностных нанокомпозитов были ис-пользованы испытания на твёрдость, износостойкость и коррозионную стойкость. Показано, что микротвёрдость повышается по сравнению со сплавом AA6063 благодаря наличию наночастиц TiO 2 . Обработанные ме-тодом трения с перемешиванием поверхностные нанокомпозиты облада-ют низким коэффициентом трения, отменной износостойкостью и адек-ватной коррозионной стойкостью при 40 мм/мин по сравнению со спла-вом в литом состоянии.Ключевые слова: сплав AA6063, наночастицы TiO 2 , обработка фрикци-онным перемешиванием, поверхностные нанокомпозиты, микрострукту-ра, микротвёрдость, характеристики износа, коррозионные свойства.

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Novel nanoprocessing route for bulk graphene nanoplatelets reinforced metal matrix nanocomposites

Cited by 311 publications

References 23 publications

Interaction of Edge Dislocations with Graphene Nanosheets in Graphene/Fe Composites

Interaction of Edge Dislocations with Graphene Nanosheets in Graphene/Fe Composites

Graphene NanoPlatelets reinforced tantalum carbide consolidated by spark plasma sintering

Effect of Nano-TiO$_2$ Particles on Wear and Corrosion Behaviour of AA6063 Surface Composite Fabricated by Friction Stir Processing

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