Thermophysical properties of ceramic materials of molds and cores for casting the heat-resistant alloy-based blades of gas-turbine engines

2014 ◽  
Vol 5 (4) ◽  
pp. 407-412 ◽  
Author(s):  
Yu. V. Loshchinin ◽  
Yu. I. Folomeikin ◽  
T. P. Rykova ◽  
P. S. Marakhovsky ◽  
S. I. Pakhomkin
Keyword(s):  
Gas Turbine ◽  
Thermophysical Properties ◽  
Ceramic Materials ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Heat Resistant Alloy ◽  
Resistant Alloy ◽  
Heat Resistant

scholarly journals SELECTION OF TOOL HARD ALLOY FOR PROCESSING PARTS OF GAS TURBINE ENGINES

2018 ◽  
pp. 89-93
Author(s):  
E. V. Artamonov ◽  
A. M. Tveryakov ◽  
A. S. Shtin
Keyword(s):  
Hard Alloy ◽  
Gas Turbine ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Heat Resistant ◽  
Materials Used ◽  
Selection Of

The article reports a brief overview of the choice of tool hard alloy for processing heat-resistant materials used for the manufacturing of parts of gas turbine engines DR-59, J-59, and DG-90.

scholarly journals Ceramic Components for Automotive and Heavy Duty Turbine Engines: CATE and AGT 100

1982 ◽  
Author(s):  
H. E. Helms ◽  
J. A. Byrd
Keyword(s):  
Gas Turbine ◽  
Operating Time ◽  
Ceramic Materials ◽  
Turbine Engines ◽  
Aluminum Silicate ◽  
Lithium Aluminum ◽  
Gas Turbine Engines ◽  
Design Component ◽  
Controllable Factors ◽  
Ceramic Components

Detroit Diesel Allison is actively applying advanced ceramic materials to components in gas turbine engines. Silicon carbide, silicon nitride, aluminum silicate, lithium aluminum silicate, and mullite are materials being used in various components in both the DDA GT 404-4 and AGT 100 engines. Approximately 9400 hr of ceramic component operating time in the GT 404 engine has been accumulated, and design, component processing, proof testing, and engine testing experience have begun to show the applicability of ceramic materials in production engines. Material variability, processing procedures, strength characterization, and nondestructive evaluations are emerging as critical but controllable factors. Ceramic components offer the potential of significant fuel consumption improvements in gas turbine engines for vehicles and other applications.

scholarly journals Investigation of the Influence of Direct Metal Deposition Modes on Microstructure and Formation of Defects in Samples of Heat Resistant Alloy

2022 ◽  
Author(s):  
A.V. Balyakin
Keyword(s):  
Gas Turbine ◽  
Metal Deposition ◽  
Direct Metal Deposition ◽  
Combustion Chambers ◽  
Heat Resistant Alloy ◽  
Resistant Alloy ◽  
Heat Resistant ◽  
Nickel Based Alloy

Abstract. The article discusses the influence of technological modes of the DMD method on the macro- and microstructure of a heat-resistant nickel-based alloy to use this technology for heat-resistant materials in the manufacture of parts for combustion chambers in gas turbine plants.

Mechanical Attachment of Ceramics to Metals in Gas Turbine Engines

1993 ◽  
Author(s):  
J. Mark Battison
Keyword(s):  
Gas Turbine ◽  
Material Properties ◽  
Ceramic Materials ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Ceramic Component ◽  
Turbine Engine ◽  
Dynamic Components ◽  
Mechanical Attachment ◽  
Attachment Strategies

Williams International has been actively investigating the use of ceramic materials in gas turbine engines for over 10 years. Ceramic component applications include both static and dynamic components such as combustors and turbine rotors. Component stresses, material properties, and cost, dictate attachment strategies. Non-metallic turbines with metal-to-non-metallic attachment schemes have been successfully demonstrated. This paper reviews a progression of attachment strategies that eventually led to a successful test of a non-metallic turbine in a gas turbine engine.

Development and Investigation of Ceramic Parts for Gas-Turbine Engines

1997 ◽  
Author(s):  
Youry A. Nozhnitsky ◽  
Youlia A. Fedina ◽  
Anatoly D. Rekin ◽  
Nickolai I. Petrov
Keyword(s):  
Gas Turbine ◽  
Ceramic Materials ◽  
Mechanical Tests ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Metallic Materials ◽  
Turbine Engine ◽  
Protective Medium ◽  
Gas Generators ◽  
Engine Components

For years of time there have been conducted the investigations of gas-turbine engine parts made of carbon-carbon and ceramic materials. This paper presents mainly the results of works done to create engine components of ceramic materials. There are given the investigation results on development of equipment and methods intended for use in determining the characteristics of heat-resistant non-metallic materials under ultra high temperature conditions. The unique tooling is developed to be used for conducting mechanical tests in different conditions (vacuum, protective medium, air) at temperatures up to 2200°C. There are considered three possible fields of application of ceramic materials, that are, turbine (1), combustion chamber and other stator components operating at high temperatures (2), bearings (3). Different ceramic elements are designed and manufactured, their structural strength is investigated in the laboratory faculties and also as part of engine gas generators.

Calculation of temperature fields in the zone of the transverse edge of the drill

2021 ◽  
pp. 79-84
Author(s):  
Keyword(s):  
Gas Turbine ◽  
Temperature Fields ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Heat Resistant ◽  
Edge Temperature ◽  
Hole Machining

The wear of the transverse edge of the drill, the features of the drill web and the calculation determination of the temperature fields in the zone of its operation are investigated. Dependences are obtained for determining the total contact temperatures on the front and rear surfaces of the half-web. The results were used to create CAD for blade hole machining modes with application to the processing of heat-resistant materials of gas turbine engines. Keywords: hole, blade processing, drilling, transverse edge, temperature fields. [email protected]

scholarly journals Microwave Blade Tip Clearance Measurement System

1996 ◽  
Author(s):  
Richard Grzybowski ◽  
George Foyt ◽  
Hartwig Knoell ◽  
William Atkinson ◽  
Josef Wenger
Keyword(s):  
Gas Turbine ◽  
Measurement System ◽  
Ceramic Materials ◽  
Tip Clearance ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Phase Measurements ◽  
Blade Tip ◽  
Clearance Control ◽  
Blade Tip Clearance

This paper describes the development of a Microwave Tip Clearance Measurement System for use in the gas turbine environment Applications for this sensor include basic tip clearance measurements, seal wear measurement and active blade tip clearance control in gas turbine engines. The system being developed was designed for useful operation to temperatures exceeding 1093°F, since only ceramic materials are directly exposed in the gas path. Other advantages of this microwave approach to blade tip clearance sensing include the existence of an inherent self-calibration in the sensor that permits accurate operation despite temperature variations and possible abrasion by the rotating blades. Earlier experiments designed to simulate this abrasion of the sensor head indicated that rubs as deep as 1 mm (40 mils) were easily tolerated. In addition, unlike methods based upon phase measurements, this method is very insensitive to cable vibration and length variations. Finally, this microwave technique is expected to be insensitive to fuel and other engine contamination, since it is based on the measurement of resonant frequencies, which are only slightly affected by moderate values of loss due to contamination.

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