Determination of heat treatment parameters for heavily - loaded aircraft engine components

• Autorzy: Rokicki P. , Dychtoń K. , Nowotnik A. , Drajewicz M. , Sieniawski J. , Kurkowski D. , Wierzbińska M , Jakubowicz G. , Budzik G.
• Języki publikacji: EN

Abstrakty

EN

Gears, due to their complex shape, carried load and required accuracy are ones of most complex aircraft engine parts. Single tooth damage usually breaks the power transmission and causes failure of the entire gear system. Adequate sustainability and guarantees of transmission is therefore a condition for secure operation of whole device. Particularly high requirements for reliability are put to transmissions used in the aerospace industry. Due to the loads which are transmitted through the gears, the materials used by the manufacturer must have not only high strength but also show the abrasion resistance of the surface layer and the ductility of the core. Proper parameters matching allows to create an element that can operate at higher stresses and loads. In addition, factor strength and abrasion resistance of the surface layer has a significant impact on the life of the gear. Thermo-chemical treatment of industrial gears is a fundamental process, which gives them adequate mechanical properties regarding loads they carry and the surface conditions of work. Among many methods of thermo-chemical treatment used in the industry, the most distinctive are innovative technologies designed to reduce process costs and being more environmentally friendly. The most promising methods in the discussed field are vacuum carburizing and high-pressure hardening, which by their specification of work significantly reduce the emission of CO2 and the duration of the process, without reducing the quality of the final product. The main aim of the paper is to present criteria for selection of heat treatment parameters as a part of thermo-chemical treatment process performed using vacuum methods. Proper heat treatment parameters are crucial in programming of some of final material characteristics as grain size and retained austenite morphology.

Słowa kluczowe

EN

aircraft engine components; vacuum carburizing; heat treatment; quenching; alloy steel microstructure

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2013
• Tom: Vol. 20, No. 2
• Strony: 349--354
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Rokicki P.

• Rzeszow University of Technology Department of Material Science Powstancow Warszawy Av. 12, 35-959 Rzeszow, Poland tel.: [phone], fax: [phone]

autor

Dychtoń K.

• Rzeszow University of Technology Department of Material Science Powstancow Warszawy Av. 12, 35-959 Rzeszow, Poland tel.: [phone], fax: [phone]

autor

Nowotnik A.

• Rzeszow University of Technology Department of Material Science Powstancow Warszawy Av. 12, 35-959 Rzeszow, Poland tel.: [phone], fax: [phone]

autor

Drajewicz M.

• Rzeszow University of Technology Department of Material Science Powstancow Warszawy Av. 12, 35-959 Rzeszow, Poland tel.: [phone], fax: [phone]

autor

Sieniawski J.

• Rzeszow University of Technology Department of Material Science Powstancow Warszawy Av. 12, 35-959 Rzeszow, Poland tel.: [phone], fax: [phone]

autor

Kurkowski D.

• Rzeszow University of Technology Department of Material Science Powstancow Warszawy Av. 12, 35-959 Rzeszow, Poland tel.: [phone], fax: [phone]

autor

Wierzbińska M

• Rzeszow University of Technology Department of Material Science Powstancow Warszawy Av. 12, 35-959 Rzeszow, Poland tel.: [phone], fax: [phone]

autor

Jakubowicz G.

• Rzeszow University of Technology Department of Material Science Powstancow Warszawy Av. 12, 35-959 Rzeszow, Poland tel.: [phone], fax: [phone]

autor

Budzik G.

• Rzeszow University of Technology Department of Mechanical Engineering Powstancow Warszawy Av. 12, 35-959 Rzeszow, Poland tel.: [phone], fax: [phone]

Bibliografia

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• [3] Ryzhov, N. M., Fakhurtdinov, R. S., Smirnov, A. E., Fomina, L. P., Analysis of Methods of Carburizing of Gears from Heat-Resistant Steels, Material Science and Heat Treatment, Vol. 52, No. 5-6, 2010.
• [4] Ryzhov, N. M., Smirnov, A. E., Fakhurtdinov, R. S., Control of Carbon Saturation of the Diffusion Layer in Vacuum Carburizing of Heat-Resistant Steels, Material Science and Heat Treatment, Vol. 46, No. 7-8, 2004.
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• [10] Williams, M. E., A Practical Approach to Carburizing Process Determination, Journal of Heat Treating, Vol. 2, No. 1, 1981.