Adman, Amirul Akil (2019) The Effects Of Material Properties On The Rolling Contact Surface Deformation. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Mekanik. (Submitted)
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Abstract
Material properties are crucial during surface interaction in rolling contact as it may affect friction and wear. The contact condition can be controlled by selection of material of the mating surfaces based on the produced contact stress and the hardness. A good selection of materials may increase the performance and the lifetime of any mechanical components. Wear and plastic deformation are two critical mechanisms that may lead to surface failure during rolling contact. In this work, the experiment is carried out using online method where the surface scanning is carried out directly under the Infinite Focus Microscopy (IFM). Four different materials are used to fabricate the roller specimen, there are aluminium, brass, mild steel and stainless steel to produce different contact condition. Surface asperities profile at initial and final condition is plotted to evaluate the surface asperities deformation. The average roughness Ra from 0 cycle until 100 cycle is plotted and found can be used to indicate wear rate. The BAC parameter is sufficient to present the ratio of asperities peak where high Rpk is obtained when the surface asperites profile has high peaks. Based on surface roughness parameter and asperities profile, aluminium which has the lowest hardness value has the highest surface deformation followed by brass, mild steel and stainless steel that having lower hardness respectively. The finding shows that material hardness has a significant effect on the deformation rate compared to modulus of elasticity and contact pressure. The material with higher hardness shows less deformation compared to the lower hardness material.
| Item Type: | Monograph (Project Report) |
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| Subjects: | T Technology T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Kampus Kejuruteraan (Engineering Campus) > Pusat Pengajian Kejuruteraan Mekanikal (School of Mechanical Engineering) > Monograph |
| Depositing User: | Mr Mohamed Yunus Mat Yusof |
| Date Deposited: | 16 May 2023 02:23 |
| Last Modified: | 16 May 2023 02:23 |
| URI: | http://eprints.usm.my/id/eprint/58522 |
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