Experimental investigation of aluminum matrix functionally graded material: Microstructural and hardness analyses, fretting, fatigue, and mechanical properties

Ulukoy, Arzum; Topçu, Muzaffer; Taşgetiren, Süleyman

doi:10.1177/1350650115594405

Cited by 8 publications

(3 citation statements)

References 53 publications

(53 reference statements)

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“…FGM1's wall thickness was higher than FGM2's. This result is compatible with the previous studies on the subject [74][75][76][77][78][79][80][81][82][83]. Taking into account the wear, fatigue, and fretting behaviors of FGM from previous studies, an aging process was performed (solutionizing at 500 °C, followed by water quenching and reheating for aging at 145 °C for 10 h, followed by water cooling) [75,82,83].…”

Section: Experimental Results and Analysissupporting

confidence: 88%

An Experimental Crack Propagation Analysis of Aluminum Matrix Functionally Graded Material

Ulukoy¹,

Topçu²,

Taşgetiren³

2016

Advances in Functionally Graded Materials and Structures

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In this study, a functionally graded cylindrical specimen was obtained via centrifugal casting and its fatigue crack behavior was investigated. Aluminum alloy and SiC were used as matrix material and ceramic particle, respectively. The distribution of SiC and the mechanical properties of material through cylinder wall thickness were varied because of the centrifugal force during centrifugal casting. Variations in microstructure and hardness were examined. A cylindrical specimen was cut through its thickness in four sections through vertical slicing. Tensile strength was tested on each section to determine the mechanical properties that can be varied such as Young's modulus, tensile strength, and yielding stress. To investigate the effect of variation in the mechanical properties and distribution of SiC particles on fatigue crack behavior, fatigue crack growth tests were applied under tensile cyclic load with stress ratio R = . . The samples were prepared in three separate groups central notched, single-edge notched on SiC-rich side, and single-edge notched on aluminum-rich side. It was found that SiC distribution affected fatigue crack initiation and propagation. The fatigue life increased up to % because of increasing SiC ratio for central notched specimens. Cracks were started out later on the single-edge notched SiC-rich side compared to aluminum-rich side whose fatigue life increased up to %. In addition, it was found that unreinforced aluminum material's fatigue life was lower than that of reinforced material.

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Section: Experimental Results and Analysissupporting

confidence: 88%

An Experimental Crack Propagation Analysis of Aluminum Matrix Functionally Graded Material

Ulukoy¹,

Topçu²,

Taşgetiren³

2016

Advances in Functionally Graded Materials and Structures

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“…However, those functions must reflect the actual distribution of inclusions along the wall thickness, and in many cases simple functions are not able to represent well the measured data. The parametric study was based Latin American Journal of Solids and Structures, 2019, 16(4), e187 11/15 upon the volume fraction profiles obtained from Ulukoy et al (2016) and shown in Figure 5. The material properties are given in Table 1.…”

Section: Parametric Studymentioning

confidence: 99%

Influence of the Micromechanics Models and Volume Fraction Distribution on the Overall Behavior of SiC/Al Functionally Graded Pressurized Cylinders

Medeiros

Parente

Melo

2019

Lat. Am. j. solids struct.

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The assessment of the differences in results obtained from various micromechanics homogenization schemes, as well as the implications of assuming different volume fraction profiles was carried out in the present work. The functionally graded composite chosen for the analysis was Al-SiC and comparisons were made in terms of stress and strain distributions along the wall of an internally pressurized hollow cylinder. Different micromechanics homogenization schemes were implemented into Abaqus as user-defined subroutines (UMAT). The numerical simulations were compared to a set of analytical solutions available on the literature. The obtained results varied substantially according to the homogenization scheme employed. It was also found that the type of function chosen to describe the volume fraction distribution plays a major role on the development of the hoop stresses. Additionally, the finite element analysis showed significant stress variation when the actual volume fraction distribution was used. These gradients did not appear when the same profile was approximated by smooth exponential functions. This paper points out some important issues related to common practices associated with the analysis of FGM composites and serves as an overture to a more in-depth discussion of such problems.

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“…Therefore, more effective casting methods were used, such as the centrifugal casting of such alloys as AA356, AA413 and AA390 to achieve the effect of grading the content of Si from hypoeutectic to hypereutectic [5]. Moreover, AA2014-SiC centrifugal cast and aged FGMs were obtained that allowed an improvement in their hardness and resistance to fatigue as compared to their standard cast states [6]. The wear resistance and strength characteristics of AA6061 and AA6061/SiC FGMs were also improved by centrifugal casting [7].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Corrosion Resistance of AA4047/AA7075 Transition Zone Formed Using Electron Beam Wire-Feed Additive Manufacturing

et al. 2021

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A gradient transition zone was obtained using electron beam deposition from AA4047 wire on AA7075 substrate and characterized for microstructures, tensile strength and corrosion resistance. The microstructure of the transition zone was composed of aluminum alloy grains, Al/Si eutectics and Fe-rich and Si-rich particles. Such a microstructure provided strength comparable to that of AA7075-T42 substrate but more intense corrosion due to the higher amount of anodic Mg2Si particles. The as-deposited AA4047 zone formed above the transition zone was composed of aluminum alloy dendrites and interdendritic Al/Si eutectics with low mechanical strength and high corrosion potential.

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Experimental investigation of aluminum matrix functionally graded material: Microstructural and hardness analyses, fretting, fatigue, and mechanical properties

Cited by 8 publications

References 53 publications

An Experimental Crack Propagation Analysis of Aluminum Matrix Functionally Graded Material

An Experimental Crack Propagation Analysis of Aluminum Matrix Functionally Graded Material

Influence of the Micromechanics Models and Volume Fraction Distribution on the Overall Behavior of SiC/Al Functionally Graded Pressurized Cylinders

Microstructure and Corrosion Resistance of AA4047/AA7075 Transition Zone Formed Using Electron Beam Wire-Feed Additive Manufacturing

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