IN792 DS Superalloy: Optimization of EB Welding and Post-Welding Heat Treatments

Giuseppe Barbieri; Peiman Soltani; Saulius Kaciulis; Roberto Montanari; Alessandra Varone

doi:10.4028/www.scientific.net/MSF.879.175

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IN792 DS Superalloy: Optimization of EB Welding and Post-Welding Heat Treatments
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HomeMaterials Science ForumMaterials Science Forum Vol. 879IN792 DS Superalloy: Optimization of EB Welding...

IN792 DS Superalloy: Optimization of EB Welding and Post-Welding Heat Treatments

Abstract:

Electron beam (EB) welding has been used to realize the seams on 2 mm thick plates of directionally solidified (DS) IN792 superalloy. A grid of the samples has been prepared by varying the pass speed v from 1 to 2.5 m/min, while the other process parameters (power P = 1 kW, acceleration voltage T = 50 kV, beam current I = 20 mA) were kept constant. Experiments were carried out both at room temperature and with pre-heating at 200 °C or 300 °C.Once found the best process conditions (pre-heating at 300 °C; v = 2.5 m/min) the effect of post-welding heat treatments at 700 and 750 °C for increasing time up to 2 hours has been investigated.

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Periodical:

Materials Science Forum (Volume 879)

Pages:

175-180

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.879.175

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Online since:

November 2016

Authors:

Giuseppe Barbieri*, Peiman Soltani, Saulius Kaciulis, Roberto Montanari, Alessandra Varone

Keywords:

Electron Beam, Microstructure, Post-Welding Treatments, Superalloy, Welding

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