Abstract
Thermal spray coating is a process of surface engineering technique in which the coating material is heated to melt then pushed by high-pressure flow of air as individual particle or droplets to a surface. In this study, thermal spray coating was used as an alternative to improve the material surface characteristic of worn industrial equipment, such as gears and bearing. Its quick and simple process could shorten the restoration process and thus could also minimize the lost. This research used ST 60 carbon steel as substrat. Coating material using Metcoloy 2 with the alloying elements of FeCrNiCSi, and the second material chosen Tafa 97 MXC with alloying elements of FeSiCrMnNiBWCTiC. Both coating materials were chosen because some of their alloying elements were characterized by a high property of hardness. The mechanical properties testing was done using pull of bonding test, micro-hardness test and ogoshi wear test. After the observation was conducted, the mechanical properties testing indicated that thermal spray coating process can improve the mechanical properties of material surface as resulted from hardness testing and wear resistance testing which showed an average improvement percentage of 61.22%. Whereas the highest improvement of the material surface having coating material with alloying elements of Tafa 97 MXC with the hardness increase percentage of 78.04%. Meanwhile, the wear resistance improvement showed a percentage of 86.10%. The increase on high pressure from 3 Bar to 5 Bar caused the hardness level to increase in as much as 16.99%. Whilst, the wear resistance increased in as much as 21.98%. The increase in air pressure could also lead to the increase of material coating adhesive property toward the surface substrate in as much as 5.86%.
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Nurisna, Z., Anggoro, S., Wisnu, R.P. (2020). Thermal Spray Application for Improving the Mechanical Properties of ST 60 Carbon Steel Surfaces with Metcoloy 2 and Tafa 97 MXC Coatings. In: Sabino, U., Imaduddin, F., Prabowo, A. (eds) Proceedings of the 6th International Conference and Exhibition on Sustainable Energy and Advanced Materials. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-4481-1_60
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DOI: https://doi.org/10.1007/978-981-15-4481-1_60
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