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IN792 DS superalloy: Optimization of EB welding and post-welding heat treatments

TitleIN792 DS superalloy: Optimization of EB welding and post-welding heat treatments
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2017
AuthorsBarbieri, Giuseppe, Soltani P., Kaciulis S., Montanari R., and Varone A.
JournalMaterials Science Forum
KeywordsAcceleration voltages, Beam currents, Directionally solidified, Electron beams, Heat treatment, Microstructure, Post-welding heat treatments, Post-welding treatments, Process condition, Process parameters, Superalloys, Thick plate, Welding

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 postwelding heat treatments at 700 and 750 °C for increasing time up to 2 hours has been investigated. © 2017 Trans Tech Publications, Switzerland.


cited By 0; Conference of 9th International Conference on Processing and Manufacturing of Advanced Materials, THERMEC 2016 ; Conference Date: 29 May 2016 Through 3 June 2016; Conference Code:186759

Citation KeyBarbieri2017175