Journal ArticleDOI
Effect of weld metal chemistry and heat input on the structure and properties of duplex stainless steel welds
TLDR
In this article, a low heat input process viz., EBW and another commonly employed process, gas tungsten-arc welding have been employed for welding of duplex stainless steels with and without nickel enhancement.Abstract:
The excellent combination of strength and corrosion resistance in duplex stainless steels (DSS) is due to their strict composition control and microstructural balance. The ferrite–austenite ratio is often upset in DSS weld metals owing to the rapid cooling rates associated with welding. To achieve the desired ferrite–austenite balance and hence properties, either the weld metal composition and/or the heat input is controlled. In the current work, a low heat input process viz., EBW and another commonly employed process, gas tungsten-arc welding have been employed for welding of DSS with and without nickel enhancement. Results show that (i) chemical composition has got a greater influence on the ferrite–austenite ratio than the cooling rate, (ii) and even EBW which is considered an immature process in welding of DSS, can be employed provided means of filler addition could be devised.read more
Citations
More filters
Journal ArticleDOI
A review of high energy density beam processes for welding and additive manufacturing applications
TL;DR: In this article, a review of the literature serves to provide an overview of the evolution of the laser and electron beam processes including the fundamental nature of the beam itself and how such a high-energy density beam has been applied for welding.
Journal ArticleDOI
Influence of cavitation on the passive behaviour of duplex stainless steels in aqueous LiBr solutions
Journal ArticleDOI
Shielded metal arc welding of UNS S32750 steel: microstructure, mechanical properties and corrosion behaviour
TL;DR: In this paper, the authors used shielded metal arc welding (SMAW) to produce butt joints of 5.5 mm thick super duplex stainless steel (UNS S32750) sheets using optical microscope and scanning electron microscope.
Journal ArticleDOI
Friction Stir Welding of 2205 Duplex Stainless Steel: Feasibility of Butt Joint Groove Filling in Comparison to Gas Tungsten Arc Welding.
Mohamed M. Z. Ahmed,Khaled A. Abdelazem,Mohamed M. El-Sayed Seleman,Bandar Alzahrani,Kamel Touileb,Nabil Jouini,Ismail G. El-Batanony,Hussein M. Abd El-Aziz +7 more
TL;DR: In this article, the feasibility of using friction stir welding (FSW) process as a groove filling welding technique to weld duplex stainless steel (DSS) that is extensively used by petroleum service companies and marine industries was investigated.
Journal ArticleDOI
Evaluation of the metallurgical and mechanical properties of friction-welded joints of dissimilar metal combinations AISI2205/Cu
TL;DR: In this paper, the joining performances of AISI2205/Cu friction-welded joints were studied using different friction pressures (35, 50, and 65 MPa) and friction times (6, 9, and 12 s).
References
More filters
Book
Duplex stainless steels : microstructure, properties and applications
TL;DR: In this paper, the authors present a non-destructive testing of welds for service experience, based on the application of service experience in metallurgy and metallurgical applications.