Aluminium-12wt% silicon coating prepared by thermal spraying technique: Part 2 microstructure and properties
At present, thermal spray technology has been widely used as an alternative method for wear protect-ion in materials by applying coated layer on an original worn surface. This research studied the thermal sprayed Al-12wt%Si coating prepared by flame spray technique. This material has been known as a...
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| Main Authors: | , , , |
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| Format: | Journal |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=33646371008&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/61974 |
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| Institution: | Chiang Mai University |
| Summary: | At present, thermal spray technology has been widely used as an alternative method for wear protect-ion in materials by applying coated layer on an original worn surface. This research studied the thermal sprayed Al-12wt%Si coating prepared by flame spray technique. This material has been known as a candidate for wear resistance in particularly an automobile industry. In this research, the most suitable spraying condition had been achieved by a design of experiment which was 38 ft3/hr (1.026 m3/hr) of oxygen flow rate, 27 ft3/hr (0.729 m3/hr) of acetylene flow rate and 58 mm of spray distance. The as-sprayed coating had a hardness of 87.0±8.3 HV, thickness of 236.7±20.5 μm, percentage volume fraction of porosity of 14.99±1.63 and wear rate of 1.108×10-3± 0.001 mm3/m. Microstructure of the coating was also investigated. |
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