|
iRepository at Perpustakaan UniMAP >
FINAL YEAR PROJECTS >
School of Materials Engineering (FYP) >
Please use this identifier to cite or link to this item:
http://hdl.handle.net/123456789/4976
|
| Title: | Characterization of casting alloy Al 319 (Al-12Si-4Cu-0.1Mg), PROTON cylinder head |
| Authors: | Khairul Khusairi Kamaludin |
| Advisors: | Nur Maizatul Shima Adzali (Advisor) |
| Keywords: | Alloys
Aluminum alloys
Metal castings
Steel castings
Steel castings -- Analysis |
| Issue Date: | Apr-2008 |
| Publisher: | Universiti Malaysia Perlis |
| Department: | School of Materials Engineering |
| Abstract: | The present study was undertaken to investigate the effect of metallurgical
parameters on the hardness, microstructural characterization and porosity of heat-treated
319 alloys, with the aim of adjusting these parameters to produce castings of suitable
hardness and porosity relating to the machinability of this alloy. The 319 alloys were examined in the heat-treated conditions, using different quenching media. The alloy being solution treated at 510°C for 8 h appeared to be the best solution heat treatment recommended for 319 alloys, and then quenched with different quenching media; water, oil, hot water and ice. Aging treatments were carried out at 158°C for 3 h, followed by air cooling, to determine the hardness. Hardness measurements were carried out using a Rockwell hardness tester. Hardness peak can be observed for water quenching sample after the ageing treatment. The microstructure of the alloy not much varies from a non heattreated alloy. After quenching the only sample that get a vary microstructure is the one that has been quenched using hot water. For this sample the intermetallic precipitations look finer than others. When ageing process ended the microstructure of all sample looked the same. The effect of porosity of 319 aluminum alloys was studied, where the porosity characteristics were examined using a simple experiment. Porosity is decrease after the
alloy go through a heat treatment process. |
| URI: | http://hdl.handle.net/123456789/4976 |
| Appears in Collections: | School of Materials Engineering (FYP)
|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
|
