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자료유형
학술저널
저자정보
Saif, Mohd (Department of Mechanical Engineering, Sam Higginbottom University of Agriculture Technology & Sciences) Mullick, Parth (Department of Mechanical Engineering, Sam Higginbottom University of Agriculture Technology & Sciences) Imam, Ashhad (Department of Civil Engineering, Sam Higginbottom University of Agriculture Technology & Sciences)
저널정보
테크노프레스 Advances in materials research : AMR Advances in materials research : AMR 제8권 제1호
발행연도
2019.1
수록면
11 - 24 (14page)

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This paper presents a review study for energy-efficient gas turbines (GTs) with cycles which contributes significantly towards sustainable usage. Nonetheless, these progressive engines, operative at turbine inlet temperatures as high as $1600^{\circ}C$, require the employment of highly creep resistant materials for use in hotter section components of gas turbines like combustion chamber and blades. However, the gas turbine obtain its driving power by utilizing the energy of treated gases and air which is at piercing temperature and pushing by expanding through the several rings of steady and vibratory blades. Since the turbine blades works at very high temperature and pressure, high stress concentration are observed on the blades. With the increasing demand of service, to provide adequate efficiency and power within the optimized level, turbine blades are to be made of those materials which can withstand high thermal and working load condition for longer cycle time. This paper depicts the recent developments in the field of implementing the best suited materials for the GTs, selection of proper Thermal Barrier Coating (TBC), fracture analysis and experiments on failed or used turbine blades and several other designing and operating factors which are effecting the blade life and efficiency. It is revealed that Nickel based Superalloys were promising, Cast Iron with Zirconium and Pt-Al coatings are used as best TBC material, material defects are the foremost and prominent reason for blade failure.

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