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Effect of Ni-additions on the Microstructure and Mechanical Properties of Fe-based Chill-Cast Al-Si Alloys for Production of Pistons for Automobile Engine Applications
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nwankwo, N. E. Nwoke, Victor Ugochukwu Nnuka, E. E. |
| Copyright Year | 2015 |
| Abstract | Effects of Ni addition on the microstructure and mechanical properties of Fe-based chill Al-Si cast alloys have been studied. In this study, both UTS and Hv were the properties used to assess the microstructural changes. The as-cast eutectic alloys were analysed for Fe content using Atomic Absorption Spectrometer and microstructure analysis by Metallurgical Microscope type PMG 3. The results obtained from the study showed that the ratio of Fe to Ni of 1:2 gave a decrease of Fe from 1.7% to 0.12%. The results further indicated that UTS of the as-cast eutectic Al-11%Si0.85%Ni alloy significantly increased with the removal of Fe from 124.05 N/mm2 to 165 N/mm2, whereas Hv decreased from 236.0 to186 respectively for the Ni content of 0.85%. The results are explained in terms of the quantity of Fe removed and confirmed by the high %Fe removal fraction recorded and microstructure analysis results. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.ijsret.com/IJSRET_V1I1-26.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
