چکیده مقاله
Wire based laser metal deposition WBLMD is one of the most promisingmethods for the build up and repair of the damaged nickel based superalloys componentsused in the hot section of gas turbine engines, in order to extend their lifetime and improvethe reliability In the current study, welding repair of a directionally solidified nickel basedsuperalloy with a solid solution nickel based superalloy filler metal, IN625, was investigated After parameters optimization, microstructural evaluations were carried out by optical andscanning electron microscope Based on the microstructural evaluation, the built upmicrostructure contains of the cellular and dendritic regions, while the interface of base metaland weld metal governs an epitaxial growth regime The obtained results showed thatporosity and microcracks have not been observed, after parameter optimizations
کلیدواژهها
نویسندگان
Hassan Ghorbani
Uniersity of Tehran, PhD student
Mohsen Delfan
Middle east Turbo compressor Co
Mohammad Alizadeh
Middle east Turbo compressor Co
Alireza Soltanpour
Middle east Turbo compressor Co
Hirbood Baghermanesh
Engineering department of Pulse laser Co
شیوه ارجاع
Ghorbani, Hassan and Delfan, Mohsen and Alizadeh, Mohammad and Soltanpour, Alireza and Baghermanesh, Hirbood,1401,Microstructural characterization of laser welding repair ofdirectionally solidified GTD-111 nickel-based superalloy,5th International Conference on Welding and Non Destructive Testing & 23rd National Conference on Welding & Inspection & 12th National Conference on NDT,Isfahan
ارائهشده در
مجموعه مقالات پنجمین کنفرانس بین المللی جوشکاری و آزمایش های غیرمخرب،بیست و سومین کنفرانس ملی جوش و بازرسی و دوازدهمین کنفرانس ملی آزمایش های غیرمخرب و اولین کنفرانس ملی ساخت افزایشی10 اسفند 1401 · اصفهان