The use of aluminum has increased over the years and has resulted in an increase of recycling also. These recycled aluminum alloys are called secondary alloys and do not display as good mechanical properties as primary aluminum alloys.
The purpose of this research is to investigate the influence of Manganese (Mn) on cast aluminum alloys where a substantial amount of Iron (Fe) is included…
Contents
1 Introduction
1.1 PURPOSE AND GOALS
1.2 LIMITATIONS
2 Literature Survey
2.1 BACKGROUND
2.2 CAST ALUMINUM ALLOYS
2.3 ALUMINUM SILICON ALLOYS
2.4 PHASES OF AL-SI ALLOYS CONTAINING IRON AND MANGANESE
2.5 MANGANESE IN CAST ALUMINUM ALLOYS
2.6 MANGANESE AND PRE-HEAT TREATMENT
2.7 IRON IN CAST ALUMINUM ALLOYS
2.8 PORES IN ALUMINUM ALLOYS
2.9 STRONTIUM IN CAST ALUMINUM ALLOYS
2.10 HEAT TREATMENT
3 Experimental Technique
3.1 ALLOY CHART
3.1.1 Casting
3.1.2 Composition
3.2 GRADIENT SOLIDIFICATION
3.3 HEAT TREATMENT
3.4 MECHANICAL PROPERTY TESTS
3.4.1 Room temperature tensile testing
3.5 MICROSCOPIC EXAMINATION
3.5.1 Observations
4 Results
4.1 THE INFLUENCE OF MN AND COOLING RATE ON THE MICROSTRUCTURE
4.1.1 SDAS
4.1.2 Intermetallics
4.2 THE INFLUENCE OF MN AND COOLING RATE ON THE MECHANICAL PROPERTIES
4.2.1 The effect of Mn on Elongation
4.2.2 The effect of Mn on the Strength Coefficient (K)
4.2.3 The effect of Mn on UTS
4.2.4 The effect of Mn on Yield Strength
4.2.5 The effect of Mn on the strain hardening exponent
5 Analysis
5.1 COOLING RATE
5.2 INTERMETALLIC PHASES
5.3 HEAT TREATMENT
5.3.1 The influence of Heat Treatment on mechanical properties
5.4 PORE FRACTION0
6 Conclusion
7 References
8 Index
9 Figure Index
10 Appendices
Author: Lindrud, Lennart,Lindgren, Göran
Source: Jönköping University
Download URL 2: Visit Now