Enhancing the Mechanical Properties of Si Particle Reinforced ZA22 Composite by Ti–B Modification

Yousefi, D.; Taghiabadi, R.; Shaeri, M.H.; Abedinzadeh, P.

doi:10.1007/s40962-020-00447-w

Cited by 11 publications

(2 citation statements)

References 33 publications

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“…As explained before, due to their brittle nature and low bonding strength, the coarse Al 2 Cu and Si particles are potential microcrack initiators in the microstructure. However, decreasing the size and uniform distribution of the brittle compounds in FSPed samples substantially lowers their microcracking tendency, as reported by Soustani et al [42] and Yousefi et al [43]. FSP also increases the bonding strength of particles, thus decreasing their interfacial microcracking susceptibility and improving the load transfer capability of matrix to the second-phase particles [27].…”

Section: Methodsmentioning

confidence: 75%

Optimizing the mechanical properties of Al-4.5Cu-xSi alloys through multi-pass friction stir processing and post-process aging

Mostafavi

Taghiabadi

Jafarzadegan

2021

Archiv.Civ.Mech.Eng

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The effect of post-process aging on the microstructure and mechanical properties of multi-pass friction stir processed (FSPed) Al-4.5Cu alloy containing Si (1, 3, and 5 wt.%) was studied. According to the results, adding Si improved the fluidity and decreased the porosity content of the alloy. The addition of Si up to 3 wt.% also enhanced the mechanical properties. However, further addition of Si up to 5 wt.% impaired the tensile properties. Applying the first pass of FSP improved the tensile strength and fracture strain of the alloy containing 3 wt.% Si by 25 and 125%, respectively. However, the second and fourth pass of FSP substantially improved the fracture strain, but deteriorated the hardness and tensile strength of the alloy containing 3 wt.% Si. Post-FSP aging at 180 °C for 8 h significantly improved the mechanical properties. For instance, compared to the as-cast condition, the hardness, tensile strength, fracture strain, and toughness of post-aged four-pass FSPed Al-4.5Cu-3Si alloy increased by 107, 108, 175, and 310%, respectively. According to the fractography results, the fracture surface morphology of Al-4.5Cu-3Si alloy changed from a quasi-cleavage mode in as-cast condition to a ductile-dimple fracture mode after post-FSP aging.

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Section: Methodsmentioning

confidence: 75%

Optimizing the mechanical properties of Al-4.5Cu-xSi alloys through multi-pass friction stir processing and post-process aging

Mostafavi

Taghiabadi

Jafarzadegan

2021

Archiv.Civ.Mech.Eng

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“…2,4,15 To overcome these disadvantages, many attempts have been made to stronger Zn-Al alloys by the addition of alloying metals, such as Cu, Mg, Ni, Si, Ti and Zr. [16][17][18][19][20] Copper is often used to strengthen these mechanical properties of Zn-Al alloys [21][22][23][24] (all compositions are given in wt% unless otherwise noted). The effect of growth velocity (V) on the microhardness (HV) of Zn-Al eutectic and Zn-Cu hypoperitectic alloys had been investigated by some researchers.…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature Gradient and Growth Velocity on Microstructure and Mechanical Properties on Zn–7Al–3Cu Ternary Eutectic Alloy

Yılmazer

Çadırlı

2020

Inter Metalcast

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In the present work, microstructure and mechanical properties of Zn-7Al-3Cu (wt%) ternary alloy are investigated depending on the temperature gradient and growth velocity. The alloy was prepared in the designated composition in a vacuum melting and casting furnace and then filled into the graphite sample moulds. The samples were directional solidified with various temperature gradients (6.7-10.7 K/mm) at a constant growth velocity (16.4 lm/s) and with various growth velocities (8.3-166.0 lm/s) at a constant temperature gradient (10.7 K/mm) in a Bridgmantype furnace. Microstructural images of solidified samples were taken with light microscope and scanning electron microscope. Eutectic spacings were measured from these images. Microhardness, ultimate tensile strength, yield strength and modulus elasticity values of each sample produced at various solidification parameters were also measured. The effect of temperature gradient and growth velocity on the eutectic spacing, microhardness, ultimate tensile strength, yield strength and modulus elasticity was determined using linear regression analysis. While the microhardness, ultimate tensile strength, yield strength and modulus elasticity values increased with increasing temperature gradient and growth velocity values or decreasing eutectic spacing, the elongation values decreased. Fractographic results show that the type of fracture is brittle.

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Production, Microstructure and Tribological Properties of Zn-Al/Ti Metal-Metal Composites Reinforced with Alumina Nanoparticles

et al. 2021

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Enhancing the Mechanical Properties of Si Particle Reinforced ZA22 Composite by Ti–B Modification

Cited by 11 publications

References 33 publications

Optimizing the mechanical properties of Al-4.5Cu-xSi alloys through multi-pass friction stir processing and post-process aging

Optimizing the mechanical properties of Al-4.5Cu-xSi alloys through multi-pass friction stir processing and post-process aging

Effect of Temperature Gradient and Growth Velocity on Microstructure and Mechanical Properties on Zn–7Al–3Cu Ternary Eutectic Alloy

Production, Microstructure and Tribological Properties of Zn-Al/Ti Metal-Metal Composites Reinforced with Alumina Nanoparticles

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