Alloying aluminum with Fe using laser induced plasma technique |
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Authors: | Y A Alwafi N Bidin D Gustiono S W Harun |
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Institution: | 1. Physics Department, Faculty of Science, Universiti Teknologi Malaysia, Skudai, 81300, Johor, Malaysia 2. Department of Electrical Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia
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Abstract: | A new surface modification technique is demonstrated using laser induced plasma (LIP) to increase the hardness of the surface layer. This LIP treatment provides a very high heating and fast cooling mechanism that can be used to form alloyed layer on a material surface. The hardness of the alloyed material is measured and the results show that the alloyed surface is 3 times as hard as the un-treated surface and a single Fe alloyed aluminum surface is harder than the one formed by the mixture of Fe and Cu. The micro-hardness of the alloy increases with the number of pulses at a rate of around 4 HV/pulse. The maximum hardness of 93.0 HV is obtained with the use of single Fe after exposure to 7 pulses of the laser. |
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