Preparation and characterization of in-situ Al-AlXNiY composites via reactive infiltration

Rasouli, Mohsen; Akhlaghi, Farshad; Ojo, Olatunji Oladimeji; Paidar, Moslem

doi:10.1016/j.jallcom.2018.11.408

Cited by 3 publications

(3 citation statements)

References 11 publications

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“…Fragmented and distributed particles can be seen in Fig. 7 and have been reported in previous studies, too [36,38,39].…”

Section: Microstructural Characterizationsupporting

confidence: 84%

“…Referring to XRD results, by increasing the FSP passes, an accelerated reaction can be expected during high-temperature exposure because of the increased diffusion paths in the matrix. In-situ formation of Al-Ni intermetallic compounds during heat treatment of Al/Ni diffusion couples has been investigated by several researchers [33][34][35][36]. It has been confirmed that the exothermic reaction between Al and Ni can proceed at about 550 • C [34].…”

Section: Microstructural Characterizationmentioning

confidence: 96%

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Effect of post-processing heat treatment on microstructure evolution and mechanical properties of in-situ Al/(Al3Ni-TiC) hybrid composite fabricated by friction stir processing using mechanically activated powders

Fotoohi¹,

Lotfi²,

Sadeghian³

et al. 2020

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Al matrix composites reinforced with in-situ synthesized TiC/Al3Ni particles were fabricated by friction stir processing (FSP) using mechanically activated powders. The effects of post-processing heat treatment on the microstructure and mechanical properties were investigated. Ni-TiC powder mixtures were prepared by mechanical alloying (MA) and distributed in AA1050 alloy using FSP. The microstructure of composite layers was studied by optical and field emission scanning electron microscopy (FESEM), and structural evolutions during FSP and heat treatment were investigated by X-ray diffractometry (XRD). XRD analysis showed partial reaction between MAed powders and the matrix after 2 FSP passes and the formation of Al3Ni and TiC compounds. Unreacted powders remained after 6 FSP passes, transformed to Ni3Al and TiC after heat treatment at 550 • C. Mechanical properties of composite layers were investigated by tensile and microhardness tests. Heat-treated surface composite layer exhibited an increased tensile strength of 158 MPa with more uniform microhardness in comparison with the as-FSPed sample.

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“…Fragmented and distributed particles can be seen in Fig. 7 and have been reported in previous studies, too [36,38,39].…”

Section: Microstructural Characterizationsupporting

confidence: 84%

Section: Microstructural Characterizationmentioning

confidence: 96%

Effect of post-processing heat treatment on microstructure evolution and mechanical properties of in-situ Al/(Al3Ni-TiC) hybrid composite fabricated by friction stir processing using mechanically activated powders

Fotoohi¹,

Lotfi²,

Sadeghian³

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Another way to overcome these adverse effects is to use metal reinforcements [8][9][10]. Metal reinforcements, such as metallic glasses [11,12], quasi-crystalline [13], alloy [14,15], intermetallics [16] and pure metal [17] so on, are considered by researchers to negate the adverse effects associating with ceramics. Available scientific literatures have been revealed that plasticity metallic reinforcements could improve the strength and plasticity of composites [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Interface Structure and Mechanical Properties of 7075Al Hybrid Composite Reinforced with Micron Ti Metal Particles Using Pressure Infiltration

Liu

Zheng

Cao

et al. 2019

Metals

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Micron Ti metal particles were incorporated into SiCp/7075Al composites using pressure infiltration. The interface structure between the Ti metal particles and the matrix during the casting processes were investigated. Results show that the dispersed unreacted Ti particles form mutual diffusion layer at the interface without the formation of low-temperature intermetallic phases during the solidification processes. The interaction between the micron Ti and the molten aluminum alloy is subject to the mutual diffusion coefficient of Ti–Al rather than the reaction activation energy. The tensile strength and plasticity of the composite were improved simultaneously due to the high interfacial bonding strength and released thermal misfit stress cause by the incorporated Ti metal particles.

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Preparation of Al-Al2Cu Composites In-situ Processed Via Reactive Infiltration

Rasouli

Asgar

Akhlaghi

et al. 2022

Metallogr. Microstruct. Anal.

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Preparation and characterization of in-situ Al-AlXNiY composites via reactive infiltration

Cited by 3 publications

References 11 publications

Effect of post-processing heat treatment on microstructure evolution and mechanical properties of in-situ Al/(Al3Ni-TiC) hybrid composite fabricated by friction stir processing using mechanically activated powders

Effect of post-processing heat treatment on microstructure evolution and mechanical properties of in-situ Al/(Al3Ni-TiC) hybrid composite fabricated by friction stir processing using mechanically activated powders

Interface Structure and Mechanical Properties of 7075Al Hybrid Composite Reinforced with Micron Ti Metal Particles Using Pressure Infiltration

Preparation of Al-Al2Cu Composites In-situ Processed Via Reactive Infiltration

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