A Study of Mechanical Properties and Fractography of ZA-27/Titanium-Dioxide Metal Matrix Composites

Ranganath, G.; Sharma, S.C.; Krishna, M.; Muruli, M. S.

doi:10.1361/105994902770343935

Cited by 48 publications

(26 citation statements)

References 12 publications

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“…The increase in hardness is universally attributed to the hard TiO 2 particles acting as barriers to the movement of dislocations within the matrix. 6 A similar enhancement of Al-Si alloy with alumina short fiber reinforcement and Al-4.4%-Cu alloy with boron fiber reinforcement was reported by Ranganath et al 2 …”

Section: Physical and Mechanical Propertiessupporting

confidence: 79%

“…It has also been reported by few of the researchers that zinc-aluminum (ZA-27) alloy composites are a class of material with an ability to blend with the properties of ceramics (high strength and high modulus) and with those of metals or alloys (ductility and toughness) to produce significant improvements in the mechanical performance of the composites. [2][3][4][5] Sharma et al 3 investigated the mechanical properties and the fracture mechanism of composites consisting of ZA-27 alloy reinforced with Zircon particles. They reported an improvement in ultimate tensile strength, yield strength, hardness and Young's modulus of the composites, but the impact strength decreased with the addition of zircon content in the alloy.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of thermo-mechanical behavior and stress intensity factor of titania-filled zinc–aluminium alloy composites

Patnaik

Mamatha²,

Biswas

et al. 2012

Proceedings of the Institution of Mechanical Engineers, Part L:

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Experimental investigation and finite element analysis model has been developed to study the physical, mechanical, thermal and thermo-mechanical behavior of titania (TiO 2 ) (0, 4, 8 and 12 wt%) filled zinc-aluminium (ZA-27) alloy composite materials fabricated by stir casting techniques. The experimental thermal conductivity are measured and compared with both theoretical and finite element analysis model results. The error between experimental-Hasselman & Johnson model and experimental-finite element simulation for 4 wt% of TiO 2 -filled composite is 2.43% and 0.81% while for 8 wt% of TiO 2 -filled composite is 2.60% and 1.73% and for 12 wt% of TiO 2 -filled composite is 11% and 1.9% respectively in longitudinal direction. Similarly, in transverse direction the error lies between experimental-Hamilton & Crosser model and experimental-finite elemet simulation for 4 wt% of TiO 2 -filled composite is 2.62%, 3.19%, while for 8 wt% of TiO 2 -filled composite is 1.42%, 1.45% and for 12 wt% of TiO 2 -filled composite is 5.76% and 3.64%, respectively. The thermo-mechanical characteristics of the particulate-filled alloy composites are investigated in the temperature range of 80-400 C with the single cantilever technique using dynamic mechanical analyzer. The composites with 12 wt% of TiO 2 filled has been observed to exhibit superior thermo-mechanical response with highest energy dissipation/ damping ability accompanied with a constant storage modulus without any substantial decay till 125 C. Finally, the stress intensity factor for all the particulate-filled composites is studied experimentally and compared with finite element method results. The results obtained from this analysis facilitate to understand the fracture propagation in the composites.

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Section: Physical and Mechanical Propertiessupporting

confidence: 79%

Section: Introductionmentioning

confidence: 99%

Evaluation of thermo-mechanical behavior and stress intensity factor of titania-filled zinc–aluminium alloy composites

Patnaik

Mamatha²,

Biswas

et al. 2012

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Hence, the difference in elastic behaviour between the matrix and reinforcement particles increases. The developing stress field in the matrix and reinforcement particles hinders the passage of dislocations [49]. It is well known that the percentage of elongation reduces as UTS and YS rise.…”

Section: Ductilitymentioning

confidence: 99%

Characterization of Al-4.5%Cu alloy with the addition of silicon carbide and bamboo leaf ash

Kumar¹,

Birru²

2018

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The stir-casting method was employed to study the effect of adding silicon carbide and the bamboo leaf ash into the Al-4.5wt.%Cu alloy. The standard procedure was followed in analysing the mechanical behaviour of the fabricated composites on parameters such as density, tensile strength, and hardness. Optical microscope, scanning electron microscope with energy dispersive analysis of X-rays, and X-ray diffraction analysis helped in studying the microstructure of the composites. The study reveals that the reinforcement particles in the matrix alloy were distributed nearly homogeneously, and with a clear interface. The X-ray diffraction patterns indicate the presence of silicon carbide and bamboo leaf ash without an intermetallic reaction. The density of the hybrid composites reduces with the addition of bamboo leaf ash, but porosity increases. The fabricated composites gain in tensile strength and hardness as the reinforcement particles are added, but elongation was decreased.

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“…: +20 2 25010643; fax: +20 25010639. in comparison to conventional alloys [5]. For example, Ranganath et al [6] and Seah et al [7] have found that the mechanical properties of cast ZA27 reinforced with SiC, glass fiber or TiO 2 composites are significantly altered by varying the weight percentages of reinforcements. These authors have also reported that with increasing the reinforcement content from 2 to 6 wt.%, mechanical properties such as ultimate tensile strength, yield strength and hardness significantly increase, but at the cost of ductility and toughness.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, thermal behavior and mechanical properties of squeeze cast SiC, ZrO2 or C reinforced ZA27 composites

El-Khair

Lotfy

Daoud

et al. 2011

Materials Science and Engineering: A

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A Study of Mechanical Properties and Fractography of ZA-27/Titanium-Dioxide Metal Matrix Composites

Cited by 48 publications

References 12 publications

Evaluation of thermo-mechanical behavior and stress intensity factor of titania-filled zinc–aluminium alloy composites

Evaluation of thermo-mechanical behavior and stress intensity factor of titania-filled zinc–aluminium alloy composites

Characterization of Al-4.5%Cu alloy with the addition of silicon carbide and bamboo leaf ash

Microstructure, thermal behavior and mechanical properties of squeeze cast SiC, ZrO2 or C reinforced ZA27 composites

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