Aluminum Matrix Composites for Industrial Use: Advances and Trends

A heat treatable TiB2/Al-3.5Cu-1.5Mg-1Si composite was successfully fabricated by selective laser melting (SLM). The results show that the Q phase forms in the matrix of the as-fabricated TiB2/Al-3.5Cu-1.5Mg-1Si composite. After T6 heat treatment, the Q phase disappears and the AlxMny, Mg2Si and Al2Cu(Mg) phases are formed. The same results can be observed before and after heat treatment in the unreinforced Al-Cu-Mg-Si alloy. EBSD and TEM analyses indicate that the addition of the TiB2 particles results in a remarkable grain refinement, leading to enhanced strength of the TiB2/Al-Cu-Mg-Si composite in comparison to the unreinforced Al-Cu-Mg-Si alloy in both the as-fabricated and heat-treated conditions. Both grain refinement and Orowan strengthening contribute to the high strength of the heat treated TiB2/Al-Cu-Mg-Si composite.

A heat treatable TiB2/Al-3.5Cu-1.5Mg-1Si composite fabricated by selective laser melting: Microstructure, heat treatment and mechanical properties

The metal-matrix composites/nano-composites (MMCs/MMNCs) reinforced with hard ceramic particulates have received a tremendous attention due to their potential improvements in physical and mechanical performances. In the present work, we have comprehensively collected currently available experimental data sets of Al-based MMCs/MMNCs and have carried out thorough analyses to quantitatively address the impacts of the reinforcement volume fractions, reinforcement particle sizes, and metal-matrix grain sizes on their mechanical properties including the yield strength, ultimate strength, and strain to failure of composites. We also performed a quantitative analysis on the strengthening mechanisms of Al MMNCs to reveal that the grain refinement can play a major role in increasing the strength of composites. Al-based MMC or MMNC materials generally exhibited an indirect relationship between the strength increase and strain-to-failure increase. The results include a critical comparison for the mechanical performance of particulate-reinforced composites for both pure and alloyed Al matrices to elucidate the contemporary status of Al MMC and MMNC materials.

Mechanical performance of particulate-reinforced Al metal-matrix composites (MMCs) and Al metal-matrix nano-composites (MMNCs)

Synthesis and mechanical properties of Al matrix composites reinforced with few-layer graphene and graphene oxide

This paper presents vibration control of bridges under moving loads using tuned mass damper (TMD). TMD, a kind of passive type control device, has a variety of merits in that it has permanent service time, and needs easy management and maintenance efforts and no external power supplying sources. TMD is tuned to the 1st dominant vertical mode and installed in the middle of bridges. The dynamic response of bridges subjected to moving loads can be obtained using moving mass model that considers the effects of the vehicle mass, thus TGV highspeed trains are modeled as 2 DOF system consisting of wheel and body. To show the efficiency of TMD in the case of 3-span bridge the midpoint vertical displacements and their fast Fourier transform results are com-pared before and after the installation of TMD.

이동하중을 받는 교량의 진동제어 = Vibration control of bridges under moving loads

Advanced Aluminium Matrix Composites: The Critical Need of Automotive and Aerospace Engineering Fields

https://cyberleninka.org/article/n/223867.pdf

A Review on Properties, Behaviour and Processing Methods for Al- Nano Al2O3 Composites

https://cyberleninka.org/article/n/478000.pdf

Dinesh Kumar Koli

Papers

Advanced Aluminium Matrix Composites: The Critical Need of Automotive and Aerospace Engineering Fields

A Review on Properties, Behaviour and Processing Methods for Al- Nano Al2O3 Composites

Design and Finite Element Analysis of an Automotive Clutch Assembly

Wear Behavior and Micro-structural Study of Al/Al2O3Nano-composites Before and After Heat Treatment

Noise and Vibration Emissions of Railway Bridges