Powder metallurgy fabrication, characterisation and wear assessment of SS316L-Al2O3 composites

Kuforiji, Catherine; Nganbe, Michel

doi:10.1016/j.triboint.2018.10.002

Cited by 15 publications

(10 citation statements)

References 52 publications

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“…As seen from this table, the major alloying element in duralumin is copper with 3.9% wt. This matrix exhibits a superior blend of strength and damage resistance at higher and cryogenic temperatures [8]. Duralumin is extensively used for aircraft components like fittings, couplings, transmission shafts and for gears.…”

Section: Powders Chosen For Compactionmentioning

confidence: 99%

“…The compacts are held at 580 0 C for 5 h in furnace and were let to cool down in the furnace for 18 h. The surface oxidation of compacts is prevented by loading them into furnace after the inside temperature was stabilized. The process of sintering of mainly brings about the bonding between powder particles at the contact areas and thus enhances overall strength of compact [8]. At the atomic level, sintering process provides increased bonding among atoms and diffusion of atoms and weldzonesare formed while compaction will enhance the bonding [10].…”

Section: Sintering Processmentioning

confidence: 99%

“…Density of DA and reinforced compacts was determined using a digital electronic weighing machine(0.0001 g) by adopting Archimedes' principle according to ASTM B311-08 [8,10,11]. The theoretical values of densitiesare arrived by employing rule of mixtures.…”

Section: Density and Hardness Of Compactsmentioning

confidence: 99%

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Studies on Mild Steel Particulates Reinforced Duralumin Composite Fabricated Through Powder Metallurgy Route

Shivaprakash

Gurumurthy

Siddhartha³

et al. 2019

IJMPERD

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In the present study Duralumin(DA) based Mild Steel particles (MSp -6% wt. and 12% wt.) reinforced composite are fabricated by cold compacting the milled powders. The mechanically mixed powders are compacted in a die cavity by applying a uniaxial steady load in the range 22-38 T. The hardness of green compacts produced are increased by sintering. The SEM images showed an even dispersion of MS p in the duralumin alloy and elemental composition is confirmed by the EDAX spectrum. The sintered specimens were further subjected to aging treatment. Compacts were soaked at 550 0 C for a span of 2 h and then are quenched in water at ambient temperature. The temperatures selected for aging treatment are 100, 150, and 200 0 C and hardness was checked for every 60 minutes of time. The peak hardness obtained because of aging heat treatment is found to be much better than the corresponding sintered compacts. Compacts peak aged at 100 0 C exhibited better tensile strength than the rest of the other specimens. Impact Factor (JCC): 7.6197 SCOPUS Indexed Journal NAAS Rating: 3.11quantity of reinforcement can be dispersed in the matrix and also a better control of microstructure phases is achievable [5]. Also in specific by aluminum PM it is possible to produce high performance, net or nearly net to shapes of components, hence bringing down or avoiding the investment and running costs attached with complex machining operations [6]. In the recent year's researchers have used ceramic particles for producing the composites. But the major drawback with ceramics reinforced MMC's are their relatively lower toughness and toughness. Also, the relatively higher costs would make them economically unsuitable for various applications. In contrast, steels are competitively low cost, which has made them attractive in a wide range of applications [7].In the light of above, the present investigation concentrates on to develop the composite by dispersing the mild steel particles in different proportions in duralumin matrix by employing the cold compacting approach. The composite developed is expected to provide superior mechanical properties suitable for high strength, heat and wear resistant applications.

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Section: Powders Chosen For Compactionmentioning

confidence: 99%

Section: Sintering Processmentioning

confidence: 99%

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Studies on Mild Steel Particulates Reinforced Duralumin Composite Fabricated Through Powder Metallurgy Route

Shivaprakash

Gurumurthy

Siddhartha³

et al. 2019

IJMPERD

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“…The development of new materials is a subject of ongoing interest for the scientific community [3][4][5]. This recent attraction is due to the potential of micro-and nanoreinforcements to enhance the mechanical performance of the alloy [6].…”

Section: Introductionmentioning

confidence: 99%

“…Aluminum-based composite materials show interesting properties used in highly demanding engineering applications; however, their performance under load and wear conditions is crucial [1,4,5]. Consequently, the selection of the reinforcing material is a critical parameter in producing efficient composite materials.…”

Section: Introductionmentioning

confidence: 99%

Wear Dry Behavior of the Al-6061-Al2O3 Composite Synthesized by Mechanical Alloying

Mercado-Lemus¹,

Gomez-Esparza

Díaz-Guillén³

et al. 2021

Metals

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The present research deals with the comparative wear behavior of a mechanically milled Al-6061 alloy and the same alloy reinforced with 5 wt.% of Al2O3 nanoparticles (Al-6061-Al2O3) under different dry sliding conditions. For this purpose, an aluminum-silicon-based material was synthesized by high-energy mechanical alloying, cold consolidated, and sintered under pressureless and vacuum conditions. The mechanical behavior was evaluated by sliding wear and microhardness tests. The structural characterization was carried out by X-ray diffraction and scanning electron microscopy. Results showed a clear wear resistance improvement in the aluminum matrix composite (Al-6061-Al2O3) in comparison with the Al-6061 alloy since nanoparticles act as a third hard body against wear. This behavior is attributed to the significant increment in hardness on the reinforced material, whose strengthening mechanisms mainly lie in a nanometric size and homogeneous dispersion of particles offering an effective load transfer from the matrix to the reinforcement. Discussion of the wear performance was in terms of a protective thin film oxide formation, where protective behavior decreases as a function of the sliding speed.

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Multipass Friction Stir Processing of Steel/SiC Nanocomposite: Assessment of Microstructure and Tribological Properties

Khales

Sajjadi

Kamyabi-Gol

2020

J. of Materi Eng and Perform

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Powder metallurgy fabrication, characterisation and wear assessment of SS316L-Al2O3 composites

Cited by 15 publications

References 52 publications

Studies on Mild Steel Particulates Reinforced Duralumin Composite Fabricated Through Powder Metallurgy Route

Studies on Mild Steel Particulates Reinforced Duralumin Composite Fabricated Through Powder Metallurgy Route

Wear Dry Behavior of the Al-6061-Al2O3 Composite Synthesized by Mechanical Alloying

Multipass Friction Stir Processing of Steel/SiC Nanocomposite: Assessment of Microstructure and Tribological Properties

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