CHARACTERIZATION OF HIGH-PRESSURE TURBINE (HPT) FIRST-STAGE TURBINE BLADE IN AIRPLANE JET ENGINES
Airplanes are one of the most frequently used mode of transportation and have jet engines to power them in the air. Jet engines often experience failures that occur in turbine blades. The critical pressure and temperature conditions subjected to high-pressure turbine (HPT) could potentially cause...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/78197 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | Airplanes are one of the most frequently used mode of transportation
and have jet engines to power them in the air. Jet engines often experience
failures that occur in turbine blades. The critical pressure and temperature
conditions subjected to high-pressure turbine (HPT) could potentially cause
failure.
This study aims to identify the coating, cooling system, and materials
used in the HPT first-stage turbine blades of the CFM56-7B and CFM56-5C
engines. The methods used are visual observation, metallography using a light
optical microscope, and Energy Dispersive Spectroscopy (EDS)
characterization.
The results of this characterization are that the coating used on the HPT
first-stage CFM56-7B turbine blade has a thermal barrier coating made of
yttria-stabilized zirconia and Pt-aluminide bond coat, has a cooling system with
film impingement cooling, and uses single crystal superalloy material with a
chemical composition similar to Rene N5. Meanwhile, the HPT first-stage
CFM56-5C turbine blade has a Pt-aluminide coating, has a cooling system with
film impingement cooling, and uses a polycrystalline superalloy material with a
chemical composition similar to Rene 80. |
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