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.

Mechanical properties of coconut shell ash reinforced aluminium metal matrix composites

2019 ◽  
Author(s):  
Poornesh Mangalore ◽  
Akash ◽  
Akash Ulvekar ◽  
Abhiram ◽  
Joy Sanjay ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Coconut Shell ◽  
Matrix Composites ◽  
Coconut Shell Ash ◽  
Aluminium Metal

Development of Ti-MMCs by the Use of Different Reinforcements via Conventional Hot-Pressing

2016 ◽  
Vol 704 ◽  
pp. 400-405 ◽  
Author(s):  
Cristina Arévalo ◽  
Michael Kitzmantel ◽  
Erich Neubauer ◽  
Isabel Montealegre-Meléndez
Keyword(s):  
Mechanical Properties ◽  
Hot Pressing ◽  
Metal Matrix ◽  
High Strength ◽  
Strengthening Effect ◽  
Light Weight ◽  
Matrix Composites ◽  
Amorphous Boron ◽  
Hardness Tests ◽  
History Of

Titanium and its alloys have evolved faster than any structural material in the history of metallurgy. The increasing employment of titanium in many different applications is mainly due to its light weight, high strength and structural efficiency. The titanium metal matrix composites (Ti-MMCs) have helped to achieve these objectives. The aim of this work is the development and study of Ti-MMCs manufactured via hot pressing at 900 °C reinforced by sub-micron and micron boron carbide (B4C), amorphous boron and sub-micron and micron titanium diboride (TiB2) particles in order to improve its mechanical properties. Full dense composites were obtained with this consolidation technique. The influence of the different reinforcements has been analyzed. Moreover, the strengthening effect of sub-micron reinforcements is compared to the effect of the material with the same chemical composition in a micro-scaled phase. Comparison has been established studying the microstructure (grain size and density) and mechanical properties through tensile and hardness tests.

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.

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