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Study of the Microstructure of the Gas Turbine Internal Blade

High Pressure Turbine (HPT) first stage blade is the most important rotational components of aero-engine. It operatesat high temperature and under conditions of extreme environmental attack such as oxidation and corrosion, isespecially subjected to degradation by oxidation, corrosion and wear. Du...

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Main Author: Ahmad, Nurul Najat
Format: Final Year Project
Language:English
Published: Universiti Teknologi Petronas 2011
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://utpedia.utp.edu.my/8605/1/2011%20-%20Study%20of%20the%20microstructure%20of%20the%20gas%20turbine%20internal%20blade.pdf
http://utpedia.utp.edu.my/8605/
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spelling my-utp-utpedia.86052017-01-25T09:41:31Z http://utpedia.utp.edu.my/8605/ Study of the Microstructure of the Gas Turbine Internal Blade Ahmad, Nurul Najat TJ Mechanical engineering and machinery High Pressure Turbine (HPT) first stage blade is the most important rotational components of aero-engine. It operatesat high temperature and under conditions of extreme environmental attack such as oxidation and corrosion, isespecially subjected to degradation by oxidation, corrosion and wear. Due to the elevated temperature been introduced on the turbine blades, they faced several failure such as thermal stress failure and creep. This failure is very common and always occurred on this life limiting component of gas turbine. Further study on the microstructure behavior with respect to the temperature along the blade is carried out to predict the cycle life of the blade. The objective of this project is basically to study on the microstructure of Nickel based Superalloy characterization. The study is mainly focusing on the evaluation of the morphology changeof the y ' particles, carbide precipitation and characterization of particle type and size.Then, a complete procedure and testing related with the study of gas turbine blades were performed using relevant equipment and tools. The procedure involves preparing metallographic sample, chemical analysis and analyzing the microstructure under FESEM and EDS. Though, the main objective of this project is to create a complete profile of microstructure along the turbine blade. This profile is believed to be very useful in the industry to predict the cycle life of turbine blade. Thorough analysis been done,the microstructure undergoes transformations which likely degrade the mechanical properties of the alloy, including y' coarsening, increased carbide precipitation in grain boundaries, andincreasinggrain size with respect to temperature. From the analysis, we can predict the temperature profile alongside the blade, which is increase from lower part to upper part. Therefore, the operating temperature of gas turbine need to be maintain so that the microstructure of blade is not affected and as well reduce the lifespan of turbine blade. Universiti Teknologi Petronas 2011-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/8605/1/2011%20-%20Study%20of%20the%20microstructure%20of%20the%20gas%20turbine%20internal%20blade.pdf Ahmad, Nurul Najat (2011) Study of the Microstructure of the Gas Turbine Internal Blade. Universiti Teknologi Petronas. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Ahmad, Nurul Najat
Study of the Microstructure of the Gas Turbine Internal Blade
description High Pressure Turbine (HPT) first stage blade is the most important rotational components of aero-engine. It operatesat high temperature and under conditions of extreme environmental attack such as oxidation and corrosion, isespecially subjected to degradation by oxidation, corrosion and wear. Due to the elevated temperature been introduced on the turbine blades, they faced several failure such as thermal stress failure and creep. This failure is very common and always occurred on this life limiting component of gas turbine. Further study on the microstructure behavior with respect to the temperature along the blade is carried out to predict the cycle life of the blade. The objective of this project is basically to study on the microstructure of Nickel based Superalloy characterization. The study is mainly focusing on the evaluation of the morphology changeof the y ' particles, carbide precipitation and characterization of particle type and size.Then, a complete procedure and testing related with the study of gas turbine blades were performed using relevant equipment and tools. The procedure involves preparing metallographic sample, chemical analysis and analyzing the microstructure under FESEM and EDS. Though, the main objective of this project is to create a complete profile of microstructure along the turbine blade. This profile is believed to be very useful in the industry to predict the cycle life of turbine blade. Thorough analysis been done,the microstructure undergoes transformations which likely degrade the mechanical properties of the alloy, including y' coarsening, increased carbide precipitation in grain boundaries, andincreasinggrain size with respect to temperature. From the analysis, we can predict the temperature profile alongside the blade, which is increase from lower part to upper part. Therefore, the operating temperature of gas turbine need to be maintain so that the microstructure of blade is not affected and as well reduce the lifespan of turbine blade.
format Final Year Project
author Ahmad, Nurul Najat
author_facet Ahmad, Nurul Najat
author_sort Ahmad, Nurul Najat
title Study of the Microstructure of the Gas Turbine Internal Blade
title_short Study of the Microstructure of the Gas Turbine Internal Blade
title_full Study of the Microstructure of the Gas Turbine Internal Blade
title_fullStr Study of the Microstructure of the Gas Turbine Internal Blade
title_full_unstemmed Study of the Microstructure of the Gas Turbine Internal Blade
title_sort study of the microstructure of the gas turbine internal blade
publisher Universiti Teknologi Petronas
publishDate 2011
url http://utpedia.utp.edu.my/8605/1/2011%20-%20Study%20of%20the%20microstructure%20of%20the%20gas%20turbine%20internal%20blade.pdf
http://utpedia.utp.edu.my/8605/
_version_ 1739831590984351744
score 13.211869

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