Thermoplastic hardening of gas turbine engines blades

Krutsilo, V. G.; Krotinov, N.; Samboruk, A. R.

doi:10.1016/j.matpr.2019.08.036

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…Modern gas turbine engines operate at the temperatures of hot gases' expansion in a direction transverse to the rows of turbine blades. The blades of modern gas turbine engines are complex structures made of heat-resistant alloys with a complex system of internal cavities [1,2]. The efficiency and service life of blades of this design can be ensured by protecting them from high-temperature gas corrosion.…”

Section: Introductionmentioning

confidence: 99%

Ion-Plasma Spraying and Electron-Beam Treatment of Composite Cr-Al-Co-ZrO2-Y2O3 Coating on the Surface of Ni-Cr Alloy

et al. 2021

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The blades of modern gas turbine engines are complex structures made of heat-resistant nickel alloys with a complex system of internal cavities. The article describes a method of strengthening samples of a heat-resistant Ni-Cr alloy by applying a composite coating (Cr-Al-Co + ZrO2-Y2O3). The alloy prototypes were fabricated by vacuum melting. An ion-plasma technology of a two-layer coating with an inner metal and an outer ceramic layer on the prepared surface of the heat-resistant alloy matrix was developed. The morphology and structure of the alloy prototypes and the investigated composite coating were studied by scanning electron spectroscopy. The total thickness of the two-layer wear-resistant coating was 17–18 μm. The thickness of the inner layer (Cr/Al/Co) is 10–11 μm and the thickness of the outer ceramic coating (ZrO2-Y2O3) is 6–7 μm. To improve the operational characteristics of the material, an electron-beam surface treatment was proposed. The research results showed a sevenfold increase in surface resistance compared with the initial state.

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Section: Introductionmentioning

confidence: 99%

Ion-Plasma Spraying and Electron-Beam Treatment of Composite Cr-Al-Co-ZrO2-Y2O3 Coating on the Surface of Ni-Cr Alloy

et al. 2021

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“…SPD is widely used to increase the cyclic strength of machine parts. However, with increasing operating temperature, strain hardening relaxes and its positive influence decreases [1,11].…”

Section: Introductionmentioning

confidence: 99%

“…For critical parts operating under high temperatures and alternating loads, such as blades, discs, gas turbine engine deflectors and others, a thermoplastic hardening (TPH) method was proposed [1,[12][13][14][15]. To implement this method, a number of installations have been developed that make it possible to strengthen parts of various complex shapes, including internal surfaces [16][17][18].…”

Section: Introductionmentioning

confidence: 99%