نتایج جستجو برای: nickel based superalloy

تعداد نتایج: 2964286  

Journal: :IOP conference series 2021

Abstract In industrial gas turbine (IGT) engine manufacturing, nickel-based superalloys are used mainly to meet the needs of components hot pathway. Although these alloys have high-temperature capabilities, parts prone damage during service. The high working temperatures engines lead component degradation due creep, fatigue, and oxidation reactions; therefore, cost newly produced superalloy com...

Journal: :Welding in The World 2022

Abstract The influence of keyhole TIG (K-TIG) welding parameters on the weld geometry and defects a new nickel-based superalloy VDM Alloy 780 alloy were investigated using statistical design experiment, microstructures heat-affected zone (HAZ) fusion (FZ) K-TIG-welded characterized. No cracks are found in FZ HAZ. Travel speed significantly influences minimum width (Wm), face root excess metal, ...

2014
Kang Yuan Ru Peng Xin-Hai Li Sten Johansson Yandong Wang Ru Lin Peng Yan-Dong Wang

In turbine engines, high temperature components made of superalloys may crack in a creep process during service. With the inward flux of the gases, e.g. oxygen and nitrogen, along those cracks, the microstructure of the superalloy substrate nearby the cracks may degrade by internal oxidation and nitridation. The aim of this study is to investigate and simulate the oxidation-nitridation-induced ...

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