Han Shun,Li Yong,Zhao Suwu,et al.Current Status and Prospects of Fatigue Performance for 300M Steel by Single Vacuum Process for Landing Gear of Commercial Aircraft[J].Special Steel,2023,44(05):53-59.
Han Shun,Li Yong,Zhao Suwu,et al.Current Status and Prospects of Fatigue Performance for 300M Steel by Single Vacuum Process for Landing Gear of Commercial Aircraft[J].Special Steel,2023,44(05):53-59. DOI: 10.20057/j.1003-8620.2023-00123.
Current Status and Prospects of Fatigue Performance for 300M Steel by Single Vacuum Process for Landing Gear of Commercial Aircraft
According to the research and production status of 300M steel for commercial aircraft landing gear in China, the production process and fatigue properties of 300M steel by single vacuum melting process in China are introduced. The relation of fatigue strength, tensile strength and fracture toughness, and fatigue crack source inclusion species of 300M steel for domestic commercial aircraft landing gear are analyzed, and the market potential, future green development direction of 300M steel for commercial aircraft landing gear in China is prospected. Through research and tackle key problems, China has formed 300M steel technology by single vacuum smelting for commercial aircraft landing gear. Fushun Special steel and Bao Wu Special Metallurgy have established process production system with mass production capacity on 300M steel by single vacuum smelting.With the development of production technology, it is necessary to focus on the performance stability, purity and fatigue performance of the material, strengthen control during production, continue to optimize the melting and forging process, reduce energy consumption and costs, accumulate data and improve the material standard system. At the same time, the single vacuum 300M steel of
ϕ
1 080 mm and more larger ingot type is developed, which is fully in line with international standards in quality, standards, costs and certification
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