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Improving the Surface Properties of a Pelton Turbine Bucket via Centrifugal Casting Technique

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dc.contributor.author Ebhota, W S
dc.contributor.author Karun, A S
dc.contributor.author Inambao, F L
dc.date.accessioned 2018-07-23T05:35:25Z
dc.date.available 2018-07-23T05:35:25Z
dc.date.issued 2017-10-05
dc.identifier.citation Advances in Mechanical Engineering, 9(10):1-14 en_US
dc.identifier.uri http://10.10.100.66:8080/xmlui/handle/123456789/3188
dc.description.abstract This study examines the possibility of fabricating a complex, non-cylindrical, Pelton turbine bucket by centrifugal casting technique. Oil hardening non-shrinking die steel material was selected for the permanent mould production, machined with computer numerical control and heat treated to a hardness of 432BHN. Aluminium alloys, A390 and A390-5%Mg, were considered as the Pelton turbine bucket materials, cast and characterised. The effects of centrifugal casting technique and thermal treatment on the mechanical properties and corrosion resistance of A390 and A390-5%Mg alloys were studied. A hardness of 150BHN (maximum) was recorded near the inner surface of the bucket and 157BHN (maximum) was recorded at the outer periphery of the cylindrical cast. It was observed that A390-5%Mg by gravity casting shows higher corrosion resistance than the A390 alloy. Furthermore, the specimen from the outer zone of the circular cast shows a higher corrosion resistance than the specimen from the inner periphery. en_US
dc.language.iso en en_US
dc.publisher Sage Publications en_US
dc.subject A390-5%Mg alloy en_US
dc.subject centrifugal casting technique en_US
dc.subject electrochemical corrosion test en_US
dc.subject T6-heat treatment en_US
dc.subject Pelton turbine bucket en_US
dc.title Improving the Surface Properties of a Pelton Turbine Bucket via Centrifugal Casting Technique en_US
dc.type Article en_US


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