High temperature tensile properties of centrifugally cast in-situ Al-Mg2Si functionally graded composites for automotive cylinder block liners

Ram, Shri; Chattopadhyay, Kausik; Chakrabarty, I.

doi:10.1016/j.jallcom.2017.06.306

Cited by 69 publications

(21 citation statements)

References 37 publications

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“…[22,151,152]. According to area of application, FGMs can be classified into biomaterial [125,[153][154][155], aerospace [156][157][158], automotive [159,160], defense [161,162], cutting tools [163], nuclear reactor [164], smart structure [165], turbine blades [166] and sports equipment [167]. Figure 10 represent an overview of the classification according to the major fields of applications.…”

Section: According To the Field Of Applicationmentioning

confidence: 99%

Functionally graded materials classifications and development trends from industrial point of view

2019

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Over the last few years, many classifications have been proposed for functionally graded materials (FGMs). In this Paper, critical review of different available classifications for FGM based on their physical, structural and manufacturing characteristics are presented. Advantages and limitations of each fabrication method for use in a given application is correspondingly considered. In addition, new classifications based on gradation control and accuracy, residual stresses, specific energy consumption, environmental impact evaluated throughout the complete life cycle and manufacturing costs are proposed. These classifications mainly reflect the needs of both FGM designers and industrial manufacturers. Based upon the presented classifications and the recent advances in analysis and production techniques, new major directions for FGMs research are proposed.

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Section: According To the Field Of Applicationmentioning

confidence: 99%

Functionally graded materials classifications and development trends from industrial point of view

2019

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“…Nowadays as an alternative to cast iron, Al-Si alloys are increasingly used to manufacture engine parts. In addition to having a high strength to weight ratio, Al-Si alloys also have excellent thermal conductivity property which is necessary to remove the heat released by combustion [1]. The applications of Al-Si alloys in the automotive industry include engine parts, in particular, cylinder liners, and engine blocks.…”

Section: Introductionmentioning

confidence: 99%

Comparison of functionally graded and ungraded cylinder liners with finite element analysis

Ertek¹,

Civelek²

2020

Cumhuriyet Science Journal

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In this study, functionally graded and ungraded Al-Si cylinder liners have been compared by the finite element analysis. At the beginning of the study, the most sold gasolinepowered automobiles in recent years have been investigated and the dimensions of the Al-Si cylinder liner have been determined. Al-Si alloy based cylinder liners with a wall-thickness of 6 mm and inner diameter of 74 mm, an outer diameter of 86 mm and a length of 165 mm have been designed. The functionally graded cylinder liner has a twenty-layered structure, and the silicon content of each layer is distinct. Si contents on the inner and the outer surfaces of the functionally graded liner are 32 vol.% and 8.5 vol.%., respectively. The ungraded cylinder liner, on the other hand, has a homogeneous structure and the silicon content of 21 vol.%. The maximum Von Mises stresses reached as a result of thermal loads in the functionally graded and ungraded cylinder liners are determined to be 47.526 MPa and 95.951 MPa, respectively. It has been observed that maximum Von Mises stress decreases by approximately 50% thanks to the functional grading.

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“…Recently, aluminum matrix composites (AMCs), especially Mg 2 Si-particle-reinforced aluminum matrix alloys, have attracted considerable attention due to their high specific strength, excellent wear, and anticorrosion resistance in structural components in the aerospace and automotive fields [ 1 , 2 , 3 ]. As an advanced intermetallic compound, Mg 2 Si possesses excellent properties, including high hardness (4.5 × 10 9 N m −2 ), low density (1.99 × 10 3 kg m −3 ), low thermal expansion coefficient (7.5 × 10 −6 K −1 ), and a suitable elastic modulus (120 GPa), meaning it has been regarded as an intriguing candidate for use in structural applications [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure Evolution and Performance Improvement of Hypereutectic Al–Mg2Si Metallic Composite with Ca or Sb

et al. 2020

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In this article, the modification effects on Al–Mg2Si before and after heat treatment were investigated with Ca, Sb, and (Ca + Sb). In comparison with single Ca or Sb, the samples with composition modifiers (Ca + Sb) had the optimal microstructure. The sample with a molar ratio for Ca-to-Sb of 1:1 obtained relatively higher properties, for which the Brinell hardness values before and after heat treatment were remarkably increased by 31.74% and 28.93% in comparison with bare alloy. According to differential scanning calorimetry analysis (DSC), it was found that the nucleation behavior of the primary Mg2Si phase could be significantly improved by using chemical modifiers. Some white particles were found to be embedded in the center of Mg2Si phases, which were deduced to be Ca5Sb3 through X-ray diffraction (XRD) and field-emission scanning electron microscope (FESEM) analyses. Furthermore, Ca5Sb3 articles possess a rather low mismatch degree with Mg2Si particles based on Phase Transformation Crystallography Lab software (PTCLab) calculation, meaning that the efficient nucleation capability of Ca5Sb3 for Mg2Si particles could be estimated.

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High temperature tensile properties of centrifugally cast in-situ Al-Mg2Si functionally graded composites for automotive cylinder block liners

Cited by 69 publications

References 37 publications

Functionally graded materials classifications and development trends from industrial point of view

Functionally graded materials classifications and development trends from industrial point of view

Comparison of functionally graded and ungraded cylinder liners with finite element analysis

Microstructure Evolution and Performance Improvement of Hypereutectic Al–Mg2Si Metallic Composite with Ca or Sb

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