scholarly journals THE EFFECT OF ANNEALING AND COLD FORGING ON MICROSTRUCTURE AND HARDNESS PROPERTIES OF Al-SiC COMPOSITE : A PRELIMINARY STUDY

2021 ◽  
Vol 27 (2) ◽  
pp. 67
Author(s):  
Yudhistira Adityawardhana ◽  
Anne Zulfia ◽  
Bintang Adjiantoro ◽  
Muhammad Yunan Hasbi
Keyword(s):  
Composite Materials ◽  
High Strength ◽  
Fabrication Process ◽  
Cold Forging ◽  
Matrix Composites ◽  
Dislocation Mechanism ◽  
Al Composite ◽  
Microstructure Morphology ◽  
Preliminary Study ◽  
Aluminium Metal

THE EFFECT OF ANNEALING AND COLD FORGING ON MICROSTRUCTURE AND HARDNESS PROPERTIES OF AL-SIC COMPOSITE: A PRELIMINARY STUDY. Aluminium Metal Matrix Composites (AMMCs) are one of the exciting materials that have an extensive function in various applications. By utilizing reinforcement in the fabrication process, Al composites can produce superior properties such as high strength, good fracture resistance, and of course, lightweight. Therefore, many studies are interested in revealing the characteristics of Al composite materials through various methods and variations of reinforcement. This research is a preliminary study with a scope of work, including observing the effects of annealing and cold forging processes on the microstructure morphology and hardness properties of SiC nano-ceramic reinforced Al composites. The aluminium used in this study is a 7xxx series aluminium alloy. The fabrication process was carried out by stir-squeeze casting method. Microstructure analysis was conducted by optical microscopy and Scanning Electron Microscopy (SEM) equipped with Emission Dispersion Spectroscopy (EDS). The hardness properties of the Al-SiC composite were examined by micro Vickers hardness testing. This research reported that the annealing process influences the grain refinement and hardness properties of the Al-SiC composite. The sample experienced to cold forging has to improve the hardness value. Increasing hardness by forging after anneal may introduce due to the grain compression effect of the dislocation mechanism. Comprehensive research is required to find out other potentials of Al-SiC composite materials. Keywords: Al-SiC composite, annealing temperature, cold forging, hardness, microstructure.

Automotive Light-Weighting Using Aluminium Metal Matrix Composites

2015 ◽  
Vol 828-829 ◽  
pp. 485-491 ◽  
Author(s):  
Francis Nturanabo ◽  
Leonard M. Masu ◽  
Gonasagren Govender
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Manufacturing Industry ◽  
High Strength ◽  
The Other ◽  
Current Status ◽  
Matrix Composites ◽  
Automotive Manufacturing ◽  
Light Weighting ◽  
Aluminium Metal

The automotive manufacturing industry, worldwide, has been engaged in a race to produce lightweight vehicles. Consequently, the industry continues to deploy significant resources in developing and utilising advanced lightweight materials and cutting-edge technologies in the manufacture of new vehicle models that are energy efficient, more reliable, safer, more user-friendly and less polluting; without compromising the other important vehicle attributes such as, size, cargo space and payload, structural integrity, power and acceleration. Mass reduction is one consistent and cost-effective strategy that can be combined with other efficiency improvement strategies and technologies to meet the requirements of fuel economy and emission reduction. The materials used in automotive light-weighting must fulfil several criteria imposed by regulation and legislation with the environment in addition to satisfying customer requirements. The choice for light, high strength automotive materials is between advanced high-strength steel (AHSS) on one hand, and composites of aluminium (aluminium metal matrix composites (AlMMCs)), magnesium and polymers, on the other. In this paper, the potential of AlMMCs as a replacement for most steels and aluminium alloys in the manufacture of automotive parts and components is discussed as well as their current status and future trends of utilisation in automotive light-weighting.

scholarly journals A brief review on mechanical properties of Al-MMCs fabricated by stir casting route & applications

2021 ◽  
Vol 309 ◽  
pp. 01227
Author(s):  
Abhishek Thakur ◽  
Ravinder Singh Joshi ◽  
Arshpreet Singh
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Fly Ash ◽  
Chemical Composition ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Stir Casting ◽  
Second Phase ◽  
Matrix Composites ◽  
Aluminium Metal

Aluminium metal matrix composites are pretty much important in the different demanding sectors such as in the field of medicine and engineering like automobiles, aerospace, defence, dental and consumer goods. The need arises due to its huge calibre in industrial need of good materials with lighter weight, excellent properties and economical in cost demanded the researchers or scientists research on composite materials. The AMMCs or Al-MMCs consists of an apex variety of mechanical properties which is directly proportional to the chemical composition of the Aluminium matrix. To enhance strength the reinforcement plays a key role in AMMCs could be in the form of continuous/ discontinuous fibres, whiskers & particulate as the second phase depending on their applications and property requirements. In addition to it, various strength enhancers are reinforcements such as fly ash, TiC, SiC, Al2O3, TiO2, B4C etc. This paper attempts to review the different combinations in the processing of aluminium metal matrix composites along with their properties and their applications.

scholarly journals Aerospace Industry and Aluminum Metal Matrix Composites

2021 ◽  
Vol vm02 (is02) ◽  
pp. 73-81
Author(s):  
Sevim Yolcular Karaoglu ◽  
Serdar Karaoglu ◽  
Imgesu Unal
Keyword(s):  
Composite Materials ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Aerospace Industry ◽  
High Strength ◽  
Mechanical And Thermal Properties ◽  
Matrix Composites ◽  
Aluminum Metal ◽  
Strength And Stiffness ◽  
Aluminum Metal Matrix Composites

Researchers have turned to search for new materials that will meet all the aerospace industry requirements. When it is almost impossible to achieve this with a single material, composite materials have been studied, and there have been great developments in this field. Many elements are used in aircraft construction, but aluminum is the most preferred due to its low density, good castability, high strength, corrosion resistance, and good fatigue strength. However, its strength and stiffness limit its usability. To solve this problem, aluminum is combined with various elements. Aluminum metal matrix composites are an example of this. Aluminum metal matrix composites are preferred in aircraft applications due to their high specific modulus and good mechanical and thermal properties. This review provides information on the use of aluminum metal matrix composite materials in the aerospace industry.

Types and Course of Development of Advanced Composite Materials

2013 ◽  
Vol 438-439 ◽  
pp. 253-256
Author(s):  
Xuan Liu ◽  
Hai Xie
Keyword(s):  
Composite Materials ◽  
Polymer Matrix Composites ◽  
Large Fraction ◽  
Chemical Properties ◽  
High Strength ◽  
Matrix Composites ◽  
Advanced Composite ◽  
High Stiffness ◽  
Advanced Composites ◽  
Advanced Composite Materials

Advanced composite materials (ACMs) are also known as advanced polymer matrix composites. These are generally characterized or determined by unusually high strength fibers with unusually high stiffness, or modulus of elasticity characteristics, compared to other materials, while bound together by weaker matrices. These are termed advanced composite materials (ACMs) in comparison to the composite materials commonly in use such as reinforced concrete, or even concrete itself. The high strength fibers are also low density while occupying a large fraction of the volume. Advanced composites exhibit desirable physical and chemical properties that include light weight coupled with high stiffness (elasticity), and strength along the direction of the reinforcing fiber, dimensional stability, temperature and chemical resistance, flex performance and relatively easy processing. Advanced composites are replacing metal components in many uses, particularly in the aerospace industry.

Research Progress of SiO2 Matrix Composite Materials for Radomes

2012 ◽  
Vol 430-432 ◽  
pp. 1119-1122
Author(s):  
Xian Xin Li ◽  
Ying Sun ◽  
Jia Lu Li ◽  
Ming Ma
Keyword(s):  
Composite Materials ◽  
Matrix Composite ◽  
Three Dimensional ◽  
High Strength ◽  
Research Progress ◽  
Matrix Composites ◽  
Continuous Fiber ◽  
Sio2 Matrix ◽  
Development Direction ◽  
The Ideal

Silica（SiO2）matrix composite materials toughened by continuous fiber and fabric are the ideal materials for radomes, possessing many outstanding properties, for instance, high strength, excellent toughness and low density and so on. A comprehensive introduction is provided to the research and application of continuous fiber toughened SiO2 matrix composites, and some three dimensional configurations suitable for SiO2 matrix composites are mainly introduced. Combining with the future of the radome materials for missile, it is pointed out that SiO2 matrix composite materials toughed by continuous fiber or its three-dimensional fabric are the focus and development direction.

Al/Al2O3+Gr Hybrid Composite Compacting Behavior

2015 ◽  
Vol 1114 ◽  
pp. 86-91 ◽  
Author(s):  
Mihaița Adrian Matara ◽  
Ioana Csáki ◽  
Mariana Lucaci ◽  
Magdalena Lungu ◽  
Gabriela Popescu ◽  
...  
Keyword(s):  
Composite Materials ◽  
Powder Metallurgy ◽  
Hybrid Composite ◽  
Metal Matrix ◽  
High Strength ◽  
Matrix Composites ◽  
Powder Density ◽  
Reinforcing Material ◽  
Powder Metallurgy Route ◽  
Lubricating Properties

The researches have been focused on composite materials area, especially hybrid metal matrix composites. A hybrid composite has two or more reinforcing elements and improved properties according to the reinforcing elements used.This paper aims to discuss the Al/Al2O3+Grp behavior at different pressing forces. The composite was processed by a powder metallurgy route. Alumina used as reinforcing material provides a high strength and hardness and graphite provides lubricating properties. The results show that the compressed un-granulated powder has a higher tendency to fracture than the granulated powder. The compressed powder density was almost constant after a pressing force of 600 MPa.

MECHANICAL PROPERTIES AND MICRO-STRUCTURAL STUDY OF SINTERED ALUMINIUM METAL MATRIX COMPOSITES BY P/M TECHNIQUE

2019 ◽  
Vol 3 ◽  
pp. 89-97
Author(s):  
RAJESH KUMAR BEHERA ◽  
SARAT CHANDRA PANIGRAHI ◽  
BIRAJENDU PRASAD SAMAL ◽  
PRAMOD KUMAR PARIDA
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
High Strength ◽  
Maximum Efficiency ◽  
Manufacturing Cost ◽  
Light Weight ◽  
Matrix Composites ◽  
Aluminium Metal

Material world requires a strong research to produce a new class of materials having light weight, higher strength and better performances. This has been leads to investigate for high strength light weight alloy. The main objective in developing aluminium metal matrix composites is to provide enhanced characteristic performances and properties above the currently available materials.  Based upon the literature a new type of aluminium composite has been tries to develop which will offer attractive mechanical properties such as high strength, easy machinability, appreciable density, and low manufacturing cost etc. Aluminum powders of 99.55% purity and 325 mesh sizes are mixed with alloying metals like Copper, Magnesium, Silicon and Silicon Carbide powders in a precisely controlled quantity. During the process of powder metallurgy (P/M) product preparation, it was minutely observed to attain the maximum efficiency and accuracy. Aluminium (Al) is a light weight material but doesn’t possess a good strength. To achieve this, Copper (Cu), Silicon (Si), Magnesium (Mg) & Silicon Carbide (SiC) powders were blended with it at required proportions. The compaction was carried out with help of a C-45 steel die by power compaction press with a load of 150KN to 250KN. The obtained green products were sintered in a Muffle furnace to produce the final Aluminium Metal Matrix Composites (AMMCs) product.

Progress of the Current Interface Research on Carbon Nanotubes Reinforced Aluminum-Matrix Composites

2013 ◽  
Vol 842 ◽  
pp. 196-200
Author(s):  
Chun Wu ◽  
Wen Xin Ma ◽  
Ya Ping Chen ◽  
Ying Li ◽  
Yan Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Composite Materials ◽  
Aluminum Matrix ◽  
Aluminum Matrix Composites ◽  
Enhancement Effect ◽  
Matrix Composites ◽  
Key Factors ◽  
Material Interface ◽  
Preparation Methods ◽  
Al Composite

The carbon nanotubes with its stable structure, excellent mechanical properties, become the ideal enhancement phase of composite materials. The enhancement effect is affected by various factors, interface is one of the key factors determine its enhancement effect, also is the research focus of metal matrix composites. Briefly introduced carbon nanotubes reinforced aluminum matrix (CNTs/Al) composite material interface bonding mechanism and interface effect on the properties of composite materials, thermal expansion coefficient and preparation methods were reviewed, purity of carbon nanotubes and other factors impact on CNTs/Alcomposites interface, and puts forward the way to improve interface.

Development and Analysis of Automotive Component Using Aluminium Alloy Nano Silicon Carbide Composite

2015 ◽  
Vol 813-814 ◽  
pp. 257-262
Author(s):  
Govind Yadav ◽  
R.S. Rana ◽  
R.K. Dwivedi ◽  
Ankur Tiwari
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Metal Matrix ◽  
High Strength ◽  
Matrix Alloy ◽  
Matrix Composites ◽  
Reinforced Composites ◽  
High Modulus ◽  
Continuous Fiber ◽  
The Matrix

Composite materials are important engineering materials due to their outstanding mechanical properties. Composites are materials in which the desirable properties of separate materials are combined by mechanically binding them together. Each of the components retains its structure and characteristic, but the composite generally possesses better properties. Composite materials offer superior properties to conventional alloys for various applications as they have high stiffness, strength and wear resistance. The development of these materials started with the production of continuous-fiber-reinforced composites. The high cost and difficulty of processing these composites restricted their application and led to the development of discontinuously reinforced composites. The aim involved in designing metal matrix composite materials is to combine the desirable attributes of metals and ceramics. The addition of high strength, high modulus refractory particles to a ductile metal matrix produce a material whose mechanical properties are intermediate between the matrix alloy and the ceramic reinforcement. Metal Matrix Composites with Aluminum as metal matrix is the burning area for research now a days.

scholarly journals Sintering sensitivity of aluminium metal matrix composites developed through powder metallurgy proposed technique-a review

2021 ◽  
Vol 2070 (1) ◽  
pp. 012193
Author(s):  
Anup Choudhury ◽  
Jajneswar Nanda ◽  
Sankar Narayan Das
Keyword(s):  
Powder Metallurgy ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Sintering Temperature ◽  
Weight Ratio ◽  
High Strength ◽  
High Wear Resistance ◽  
Matrix Composites ◽  
Tribological Behaviour ◽  
Aluminium Metal

Abstract This paper interprets the effect of sintering parameters like sintering time and sintering temperature as well as various sintering methods on distinct properties of the material. The variation of Physical, mechanical, and Tribological behaviour depending on sintering temperature, time and method based on various aluminium metal matrix composites have been investigated. The advantages of aluminium metal matrix composites are high strength to weight ratio, high wear resistance, and erosion resistance, etc. Aluminium Metal matrix composites have vast applications in various fields like structural, automobile, and aviation industries. The optimum value of sintering parameters and choice of sintering methods has a major role in getting these required properties of aluminium metal matrix composites prepared by the powder metallurgy process.

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