Effect of foreign object damage on high-cycle fatigue strength of titanium alloy for aero-engine blade

Zhao, Zhenhua; Wang, Lingfeng; Lu, Kainan; Li, Yongjian; Chen, Wei; Liu, Lulu

doi:10.1016/j.engfailanal.2020.104842

Cited by 30 publications

(8 citation statements)

References 25 publications

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“…FOD (Figure 13), a major accelerator of fatigue failure, occurs when small, hard objects (such as sand, stone, or metal fragments) are sucked into the engine at high speed and strike the fan blades or compressors during aircraft takeoff or landing. [111][112][113] The leading edges of aerofoils are particularly susceptible to such damage.…”

Section: Effect Of Lsp On the Resistance Of Aircraft Engines To Fatig...mentioning

confidence: 99%

A Critical Review of Laser Shock Peening of Aircraft Engine Components

Huang

Zou³

et al. 2023

Adv Eng Mater

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Many aviation accidents are caused by the failure of aircraft engine components, and engine blades are especially vulnerable to high‐cycle fatigue fracture in severe working environments as well as to impact damage caused by foreign objects. To address this problem, the United States took the lead and has been successful in implementing laser shock peening (LSP) as a surface treatment for aircraft engine components to enhance their fatigue performance. This review provides an overview of the development of LSP for use in treating aircraft engine components over the past three decades, with a brief introduction to the development of high‐energy pulsed lasers for LSP. A particular focus of this review is on the limitations and challenges associated with the application of LSP for treating critical aircraft engine components. It is hoped that this review serves as a reference for future research and development that can lead to better performance of these components.

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Section: Effect Of Lsp On the Resistance Of Aircraft Engines To Fatig...mentioning

confidence: 99%

A Critical Review of Laser Shock Peening of Aircraft Engine Components

Huang

Zou³

et al. 2023

Adv Eng Mater

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“…According to statistics, the fatigue failure of aero-engine blades accounts for more than 80% of engine failures. It is necessary to increase the service life of an aero-engine in a harsh service environment, so the fatigue resistance of mechanical parts such as aero-engine blades has become an important evaluation index of aero-engine safety performance (Jiang et al, 2020;Ludwig et al, 2020;Zhao et al, 2020). 1Cr17Ni2 stainless steel is a strong combination of low-carbon chromium nickel steel, which has a series of excellent features such as high strength, high hardness, and good corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Fatigue failure mechanism analysis of 1Cr17Ni2 stainless steel blades ground by an abrasive belt

Zhang¹,

Li²,

Wang

et al. 2023

Front. Mater.

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Fatigue failure, as the main failure form of aero-engine blades, has a direct impact on the reliability and service life of aviation equipment. In order to improve the service performance of machined blades, it is necessary to understand the failure process and failure mechanism of blades and then optimize the grinding process. This paper takes abrasive belt grinding of an 1Cr17Ni2 stainless steel blade as the research object and analyzes the fatigue failure mechanism by characterizing the surface morphology, cross-sectional microstructure, and cross-sectional characteristics of the fatigue failure blade. The results show that cracks are prone to propagate in carbon-rich areas with poor mechanical properties inside the material, and the accumulation of large-size carbon-rich areas leads to continuous cracks easily and accelerates crack growth. The grinding process promotes the migration and consumption of surface carbon elements and forms a carbon consumption layer on the surface of the material, which can inhibit the initiation of fatigue cracks. The point-like pits on the ground surface have an adverse effect on the fatigue life and play a role in the initiation of fatigue crack enhancement. The direction of material research and development to homogenize the structure of the material and the direction of anti-fatigue grinding to increase the thickness of the carbon consumption layer on the ground surface and avoid the damage of micro-pits are proposed. The research has important guiding significance for anti-fatigue machining of key components.

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“…The aero‐engine is considered to be the heart of the aircraft, and the blades at all levels are the core components of the engine, providing more than 80% of the thrust for the engine 1,2 . The blades serve in harsh working environments, and under the action of aerodynamic and centrifugal forces, they will produce three‐dimensional composite deformation under harsh working conditions, and even cause fatigue fracture accidents, which seriously threaten the normal operation of aero‐engines 3–5 . In 2018, the fan blade of flight WN1380 broke and broke through the casing, resulting in one death and eight injuries 6 .…”

Section: Introductionmentioning

confidence: 99%

“…1,2 The blades serve in harsh working environments, and under the action of aerodynamic and centrifugal forces, they will produce three-dimensional composite deformation under harsh working conditions, and even cause fatigue fracture accidents, which seriously threaten the normal operation of aero-engines. [3][4][5] In 2018, the fan blade of flight WN1380 broke and broke through the casing, resulting in one death and eight injuries. 6 Although the blade has been designed to consider the centrifugal force and other factors, but the blade by the centrifugal force in the actual working conditions is complex.…”

Section: Introductionmentioning

confidence: 99%

Three‐dimensional deformation measurement of aero‐engine high‐speed rotating blade surface based on stroboscopic structure digital image correlation method

Sun

et al. 2022

Structural Contr & Hlth

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Under the working conditions of aero-engine, the three-dimensional composite deformation of the blade is caused by the centrifugal force generated by high-speed rotation and the load generated by gas scouring. Aiming at the problem of three-dimensional composite deformation on the surface of aeroengine blades under high-speed rotation, a three-dimensional deformation measurement method based on stroboscopic structure digital image correlation

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Effect of foreign object damage on high-cycle fatigue strength of titanium alloy for aero-engine blade

Cited by 30 publications

References 25 publications

A Critical Review of Laser Shock Peening of Aircraft Engine Components

A Critical Review of Laser Shock Peening of Aircraft Engine Components

Fatigue failure mechanism analysis of 1Cr17Ni2 stainless steel blades ground by an abrasive belt

Three‐dimensional deformation measurement of aero‐engine high‐speed rotating blade surface based on stroboscopic structure digital image correlation method

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