Development of high strength aluminum matrix composite backing plates for ballistic armor

Download

index.pdf

Date

2017

Author

Durmaz, Tayfun

Metadata

Show full item record

Item Usage Stats

413
views

155
downloads

Recently, aluminum and aluminum alloys have gained great importance in engineering applications by the help of technological developments. Today, it is possible to see aluminum alloys in very different sectors of industry because of their superior properties. Some of these important properties are high specific strength, lightness and ductility. In addition, it has low density, high corrosion resistance and high mechanical properties that make aluminum crucial in transportation, construction, packaging, household items, electrical devices, automobiles, aerospace, sports industries. Moreover, aluminum alloys and aluminum matrix composites are mostly preferred in defense industry and ballistic applications. This study aims to develop aluminum matrix composite backing plates for ballistic armor by using some high strength aluminum alloys such as 7075 and 7085. In order to comprehend the importance of the aluminum matrix composites in the production of ballistic armor backing plate, these two alloys were produced by high pressure casting methods. Then some heat treatments, rolling and forcing processes were applied to obtain the desired mechanical and physical properties of these 7000 series aluminum alloys. By vi this way, 7075 and 7085 aluminum alloys were investigated for ballistic applications. After that, alumina and boron carbide ceramic preforms and carbon fiber were melt infiltrated with these alloys by squeeze casting. At the end, the composite samples were characterized by microstructural investigations, hardness measurements, mechanical tests and phase analyses for better understanding of the importance of aluminum matrix composites in ballistic applications.

Subject Keywords

Ballistics., Aluminum., Metal castings., Aluminum alloys., Boron compounds.

URI

http://etd.lib.metu.edu.tr/upload/12620783/index.pdf
https://hdl.handle.net/11511/26276

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Optimization of mechanical and microstructural properties of weld joints between aluminium - magnesium and aluminium - magnesium - silicon alloys with different thicknesses Ekşi, Murat; Ögel, Bilgehan; Batıgün, Caner; Department of Metallurgical and Materials Engineering (2012) For the last decades usage of aluminium alloys have been increasing tremendously. They have been used in aerospace industry widely and now aluminium alloys are becoming more and more popular in automotive and defense industries. Consequently; successful welding of aluminium alloys gains importance. In this study a research is carried out on eldability of plates having different thicknesses of composition 5754 aluminium and 6063 aluminium in T-fillet geometry using Gas-metal Arc Welding technique. It was aim...
Waste Generation in Primary and Secondary Aluminum Sector in Turkey Küçük, Elif; Danacı, Dilara; Yetiş, Ülkü (null; 2017-06-21) Aluminum is the most produced and used metal following steel in the world because of its combination of physical properties. Aluminum is produced in two ways; primary aluminum production and secondary aluminum production. The main objectives of this study are to find out waste generation in aluminum industry, to determine waste generation factors(WGFs)and to suggest best available techniquesfor the management of wastes from this activity. Fordetermination of waste g...
Development of cast and heat treated 7075 alloy rifle receiver Güngör, Ahmet Umur; Kalkanlı, Ali; Department of Metallurgical and Materials Engineering (2015) Developing technology in the world makes products lighter and have higher strength values. That’s why, aluminum and titanium alloys start to be used instead of steel. It can be seen that 7075 aluminum alloy is one of the highest strength amongst the aluminum alloys. This alloy has a close tensile strength value to some steels, with help of the heat treatment applications and developing production technologies. Generally, industrial usage of 7075 alloy is machining of 7075 alloy extrusion slab into desired s...
Analysis of magnesium addition, hydrogen porosity and T6 heat treatment effects on mechanical and microstructural properties of pressure die cast 7075 aluminum alloy Alat, Ece; Kalkanlı, Ali; Department of Metallurgical and Materials Engineering (2012) Aluminum alloys are having more attention due to their high specific stiffness and processing advantages. 7075 aluminum alloy is a wrought composition aluminum alloy in the Al-Zn-Mg-Cu series. Due to the significant addition of these alloying elements, 7075 has higher strength compared to all other aluminum alloys and effective precipitation hardenability characteristic. On the other hand, aluminum alloys have some drawbacks, which hinder the widespread application of them. One of the most commonly encounte...
Investigation of SiCp reinforced aluminium matrix composites by shear and longitudinal ultrasonic waves Gür, Cemil Hakan (2001-11-01) SiC particulate reinforced aluminium matrix composites are attractive materials for automotive and aerospace applications because of their outstanding stiffness and strength as compared to the aluminium alloys, in addition to the low cost of particulate reinforcement. The aim of this study is to establish correlations between ultrasonic wave velocities and SiC content, microstructure and mechanical properties of SiC reinforced Al composites, Specimens were fabricated for various volume fraction and size com...

Citation Formats

T. Durmaz, “Development of high strength aluminum matrix composite backing plates for ballistic armor,” M.S. - Master of Science, Middle East Technical University, 2017.