Red mud emerges as the major waste material during production of alumina from bauxite by the Bayer’s process. It comprises of oxides of iron, titanium, aluminum and silica along with some other minor constituents. Based on economics as well as environmental related issues, enormous efforts have been directed worldwide towards red mud management issues for example of utilization, storage and disposal. Different avenues of red mud utilization are more or less known but none of them have so far proved to be economically viable or commercially feasible. It is generally agreed that resistance to wear of MMCs is created by reinforcement and also the wear properties are improved remarkably by introducing hard intermetallic compound into the aluminium matrix.
The reinforcing materials are generally SiC, Al2O3, TiB2 etc and are costly. The present research work has been undertaken with an objective to explore the use of red mud as a reinforcing material as a low cost option. This is due to the fact that red mud alone contains all these reinforcement elements and is plentifully available. Composites are prepared by liquid melt metallurgy techniques using vortex method. Castings are cut, turned and shaped into the required size to prepare the specimens for evaluation of the mechanical properties like hardness, tensile and wear properties.
Inhaltsverzeichnis (Table of Contents)
- INTRODUCTION
- COMPOSITE MATERIALS
- METAL MATRIX COMPOSITES
- INTRODUCTION TO ALUMINIUM ALLOYS
- OBJECTIVES OF PROJECT
- LITERATURE SURVEY
- METHODOLOGY
- PROCESS FLOW CHART
- SIEVE OF REDMUD
- STIR CASTING
- TESTING
- CASSE
- MICROSTRUCTURE ANALYSIS
- BRINELL HARDNESS ESTIMATION
- TENSILE STRENGTH ESTIMATION
- WEAR
- TESTS CONDUCTED ON CASTED SAMPLE PIECES
- RESULTS AND DISCUSSIONS
- MICROSTRUCTURE
- HARDNESS TEST RESULTS
- TENSILE TEST REULTS
- WEAR TEST REULTS
- CONCLUSIONS AND SCOPE OF FUTURE WORK
- CONCLUSION
- SCOPE OF FUTURE WORK
Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)
This research project aims to evaluate the effectiveness of incorporating metallic oxide mixtures into aluminium-based metal matrix composites. The study investigates the potential of using red mud as a reinforcement material for improving the mechanical properties of these composites.
- Mechanical Properties of Metal Matrix Composites
- Reinforcement of Aluminium Alloys with Red Mud
- Stir Casting Technique for Composite Production
- Microstructure Analysis of Composite Materials
- Evaluation of Hardness, Tensile Strength, and Wear Resistance
Zusammenfassung der Kapitel (Chapter Summaries)
- INTRODUCTION: This chapter provides an overview of composite materials, specifically metal matrix composites, with a focus on the properties and applications of aluminium alloys. It also introduces the concept of using red mud as a reinforcement material for these alloys.
- OBJECTIVES OF PROJECT: This section outlines the primary goals of the research project, which include investigating the effects of red mud reinforcement on the mechanical properties of aluminium-based composites.
- LITERATURE SURVEY: This chapter presents a review of existing research on the use of red mud as a reinforcement material in metal matrix composites, highlighting previous findings and potential benefits.
- METHODOLOGY: This chapter details the experimental methods used in the research, including the stir casting process, sieving of red mud, and sample preparation techniques.
- TESTING: This chapter describes the various testing procedures employed to evaluate the mechanical properties of the composite materials, including microstructure analysis, hardness testing, tensile strength testing, and wear tests.
- RESULTS AND DISCUSSIONS: This chapter presents and analyzes the results obtained from the experimental testing, focusing on the influence of red mud reinforcement on the microstructure, hardness, tensile strength, and wear resistance of the composite materials.
Schlüsselwörter (Keywords)
This study explores the field of metal matrix composites, specifically focusing on the use of red mud as a reinforcement material for aluminium alloys. The research investigates the mechanical properties of these composites through experimental evaluation, including microstructure analysis, hardness testing, tensile strength testing, and wear tests.
- Citation du texte
- Lokesh K S (Auteur), 2018, A Characterisation of Al6061 RedMud Composite, Munich, GRIN Verlag, https://www.grin.com/document/452983
