Effect of microstructure on fatigue resistance of Inconel 740H and Haynes 282 nickel-based alloys at high temperature

Zhu, Jiayi; Lü, Yixin; Sun, Liling; Huang, Shu; Linbo, Mei; Zhu, Ming‐Liang; Xuan, Fu‐Zhen

doi:10.1016/j.matchar.2023.113095

Cited by 14 publications

(1 citation statement)

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“…Due to their exceptional fatigue, oxidation, and corrosion resistance, nickel-based high-temperature alloys are frequently utilized in the production of aero-engine and gas turbine blades in addition to aluminum alloys [88,89]. Nickel-based high-temperature alloys can also be used as fastener materials, but the existing literature does not contain specific fatigue gains and study mechanisms for this alloy in the SCE process.…”

Section: Development Of New Materialsmentioning

confidence: 99%

Factors Influencing Residual Stresses in Cold Expansion and Their Effects on Fatigue Life—A Review

Su,

Huang,

et al. 2023

Coatings

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Cold expansion technology has been widely used in aviation industries as an effective method of improving the fatigue performance of fastener holes. It can improve the fatigue life several times over without adding weight, meeting the growing demand for lightweight and durable aircraft structures. In recent years, it has been extensively studied through extensive experiments and finite element simulations to analyze the residual stresses around the fastener hole. Appropriate process parameters lead to the generation of beneficial residual stresses that influence the material microstructure, thereby improving the fatigue life of the component. This paper summarized factors influencing residual stresses in cold expansion and their effects on fatigue life, and the strengthening mechanism, parameter optimization, and effect of anti-fatigue are discussed from the point of view of the residual stress and microstructure. The development of new cold expansion technologies and the research directions that can realize anti-fatigue technology efficiently are proposed.

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Section: Development Of New Materialsmentioning

confidence: 99%