Processing and mechanical properties of B4C reinforced Al matrix composites

Topçu, İsmail; Gülsoy, H. Özkan; Kadioglu, N.; Güllüoǧlu, Arif Nihat

doi:10.1016/j.jallcom.2009.04.065

Cited by 165 publications

(51 citation statements)

References 17 publications

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“…In addition, the plasma generated between particles contributes to the elimination of surface impurities, leading to enhanced sintering and consolidation [19]. Unlike the many studies which have been done of the mechanical properties and structural characterization of B4C reinforced AMCs [14][15][16][17][18][20][21][22][23][24][25][26][27], little research has been done to examine the wear properties of AlB2 particle reinforced AMCs [28][29][30][31]. Actually, AlB2 particles are effective nucleation sites for aluminum alloys and the chemical reactivity between particles and melt is minimized, leading to excellent interfacial bonding with the matrix [32].…”

Section: Introductionmentioning

confidence: 99%

“…Mazahery et al worked on processing of Al-Si matrix composites reinforced with TiB2 coated B4C particulates and studied the wear behavior of the sol-gel coated B4C particulate reinforced A356 matrix composites [14]. Topcu et al prepared Al matrix composites reinforced with different B4C ratios by powder metallurgy and investigated the mechanical properties of the composites [18]. Moreover, spark plasma sintering (SPS) method has been developed for sintering advanced ceramics and composite materials because SPS process allows preparation of bulk materials from mechanical alloyed powders using shorter sintering time at lower temperatures compared to hot…”

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confidence: 99%

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Mechanical properties and tribological behavior of aluminum matrix composites reinforced with in-situ AlB2 particles

Yuan

Han

Liu

et al. 2016

Tribology International

101

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. (2016). Mechanical properties and tribological behavior of aluminum matrix composites reinforced with in-situ AlB 2 particles. Tribology International, 98 41-47. Mechanical properties and tribological behavior of aluminum matrix composites reinforced with in-situ AlB2 particles AbstractAluminum matrix composites (AMCs) reinforced with in-situ AlB 2 particles have been fabricated using a combination of powder metallurgy, hot rolling and solution treatment. The effects of boron content (7 and 12 wt%), hot rolling and heat treatment parameters on the microstructures and mechanical properties of the composites were investigated by means of scanning electron microscopy (SEM), tensile test and microhardness measurements. The friction coefficient, wear behavior and scratch morphology of the AMCs and pure aluminum were also studied using scratch tests. The hardness and wear properties are higher in a case of composites when compared to unreinforced matrix material. Mechanical properties and tribological behavior of aluminum matrix composites reinforced with in-situ AlB2 particles Linlin Yuana, Jingtao Hana,*, Jing Liua，Zhengyi Jiangb aSchool of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, China bSchool of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, 2500, Australia Abstract: Aluminum matrix composites (AMCs) reinforced with in-situ AlB2 particles have been fabricated using a combination of powder metallurgy, hot rolling and solution treatment. The effects of boron content (7 and 12 wt.%), hot rolling and heat treatment parameters on the microstructures and mechanical properties of the composites were investigated by means of scanning electron microscopy (SEM), tensile test and micro-hardness measurements. The friction coefficient, wear behavior and scratch morphology of the AMCs and pure aluminum were also studied using scratch tests. The hardness and wear properties are higher in a case of composites when compared to unreinforced matrix material.Keywords: Aluminum matrix composites, AlB2 reinforcement, Powder metallurgy, Wear *Corresponding author. E-mail address: hanjt@ustb.edu.cn(Jingtao Han) 1. Introduction Aluminum matrix composites(AMCs) reinforced with ceramic particles have been extensively used in the aircraft, aerospace and automotive industries because of their high stiffness, strength to weight ratio, low coefficient of thermal expansion and good wear resistance [1][2][3]. The particulate reinforcements most often added to the pure aluminum or alloys include SiC, SiO2, B4C, TiB2 and Al2O3 [4][5][6][7][8][9]. In previous studies, Khorshid et al. prepared the AMCs reinforced by two sizes of alumina particles by wet attrition milling and hot forward extrusion processes [10]. Haghighi et al. consolidated Al-5 vol.% nano-Al2O3 by equal channel angular pressing and extrusion and compared the physical and mechanical properties [11]. Vajargah et al. fabricated Al/TiB2 nano composites via powder metallurgy route through a primarily...

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Mechanical properties and tribological behavior of aluminum matrix composites reinforced with in-situ AlB2 particles

Yuan

Han

Liu

et al. 2016

Tribology International

101

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“…Because of this reason a lot of studies were conducted combining advantages of Almatrix composites and MA process [4][5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…In addition they stated that creep behavior of the Al-Al 2 O 3 nanocomposites is related with a parameter called threshold stress and that threshold stress decreases with increasing extruding temperature. B 4 C is one of the most common reinforcing elements for AlMMCs produced by MA/MG [7][8][9][10][11]. Khakbiz ve Akhlaghi [7], used Al 6061 alloy as a matrix material and 0,7 µm sized B 4 C particles as reinforcement in order to produce nanocomposite powders by MM.…”

Section: Introductionmentioning

confidence: 99%

“…By analyzing the state of the interface they also reported that MA process supplies a good bonding between the matrix and the reinforcing element. In addition to these, Kubota [10] and Topcu et al [11], also studied on solid state reactions and mechanical properties of Al-B 4 C composite materials produced by MM, respectively. Additionally other researchers used MA/MM process to produce Al-MMCs by adding different type of ceramic reinforcing elements like SiC [12,13], and AlN [14,15].…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Al Matrix SiC Reinforced Sub-Micron Composites Produced by Mechanical Alloying

Dagasan¹,

Gerçekcioğlu²,

Unalan³

2017

J Powder Metall Min

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Dependence of Creep Properties on Aging Treatment in Al–Cu–Mg Alloy

Zhang

et al. 2022

Adv Eng Mater

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The mechanical properties are strongly associated with the heat treatment applied in the Al–Cu–Mg alloys. The peak aging treatment is normally employed following solution treatment to achieve a peak aging hardening effect. However, herein, it is shown that the creep resistance is improved at under‐aged (UA) conditions, where the material is transiently weaker than that at peak condition. Under the creep condition of 185 °C and 150 MPa, the creep fracture time of the UA (4 h) alloy is the longest at 146.5 h, followed by 128 h of the peak‐aged alloy and 72 h of the over‐aged alloy. The stress exponents are about 4, which indicates that the creep deformation mechanism of the alloy is mainly due to fracture caused by dislocation slip and grain boundary (GB) migration. Combined with the first‐principles calculation, the reason for the longer creep fracture time of the UA alloy is that the solutes Cu and Mg retained in the UA alloy interact with GBs and dislocations during creep.

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Processing and mechanical properties of B4C reinforced Al matrix composites

Cited by 165 publications

References 17 publications

Mechanical properties and tribological behavior of aluminum matrix composites reinforced with in-situ AlB2 particles

Mechanical properties and tribological behavior of aluminum matrix composites reinforced with in-situ AlB2 particles

Characterization of Al Matrix SiC Reinforced Sub-Micron Composites Produced by Mechanical Alloying

Dependence of Creep Properties on Aging Treatment in Al–Cu–Mg Alloy

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