Heat Treatment of Aluminium
Abstract Precipitation hardening, or age hardening, provides one of the most widely used mechanisms for the strengthening of metal alloys. It influences some properties of the alloys such as strength, hardness and ductility. The purpose of this experiment was to test the effect of temperature and aging time on strength and hardness of 6060 aluminium alloy samples that have roughly similar compositions by subjecting them to different temperatures for different periods of time. The experiment showed that the strength and hardness of the samples increased when they were allowed to age for longer time under a given temperature and the rate of increase in hardness was directly proportional with the ageing temperature.
Contents Abstract ....................................................................................2 Contents....................................................................................3 Lists...........................................................................................4 Introduction .............................................................................5 Theory ......................................................................................6 Materials & Procedure..............................................................7 Results and Discussion..............................................................8 Conclusion ...............................................................................12 References................................................................................13 Appendix A ..............................................................................14 Appendix B...............................................................................15
Lists Tables Table 1 | Results of hardness measured using Rockwell-H hardness test |
Figures Figure 1 | Phase diagram of Al
Contents Abstract ....................................................................................2 Contents....................................................................................3 Lists...........................................................................................4 Introduction .............................................................................5 Theory ......................................................................................6 Materials & Procedure..............................................................7 Results and Discussion..............................................................8 Conclusion ...............................................................................12 References................................................................................13 Appendix A ..............................................................................14 Appendix B...............................................................................15
Lists Tables Table 1 | Results of hardness measured using Rockwell-H hardness test |
Figures Figure 1 | Phase diagram of Al
References: _ Chemmat 221 lab manual (Semester1, 2013). _Reardon C.(2011), Metallurgy for the non-metallurgist, p:67. _ Kaufman, John (2000). Introduction to aluminum alloys and tempers 10 | 37.9 , 42.841.6 , 46.2 | 42.2 | 44.9 , 46.448.4 | 46.6 | 47.6 , 44.3 43.8 | 45.1 | 55.6 , 57.658.0 | 57.1 | 20 | 40.7 , 40.643.8 | 41.7 | 47.2 , 46.947.4 | 47.2 | 60.8 , 59.357.5 | 59.1 | 58 , 5553.7 | 55.6 |