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

TitoloIN792 DS superalloy: Optimization of EB welding and post-welding heat treatments
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2017
AutoriBarbieri, Giuseppe, Soltani P., Kaciulis S., Montanari R., and Varone A.
RivistaMaterials Science Forum
Parole chiaveAcceleration 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