Effect of nitrogen on sintered duplex stainless steels

Effect of nitrogen on sintered duplex stainless steels

In this paper, the authors have studied the effects of the different sintering atmospheres (vacuum, nitrogen-hydrogen, and dissociate ammonia) on 50A-50F duplex stainless steels, fabricated by the powder metallurgy process. The DSS sintered in atmosphere of N 2 -H 2 exhibit a tensile strength of at...

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Veröffentlicht in:Powder metallurgy 2003-03, Vol.46 (1), p.39-42
Hauptverfasser: Corpas Iglesias, F. A., Ruiz Román, J. M., Ruiz Prieto, J. M., Garc´a Cambronero, L., Iglesias Godino, F. J.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Metals. Metallurgy
Powder metallurgy. Composite materials
Production techniques
Sintered metals and alloys. Pseudo alloys. Cermets
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Zusammenfassung:In this paper, the authors have studied the effects of the different sintering atmospheres (vacuum, nitrogen-hydrogen, and dissociate ammonia) on 50A-50F duplex stainless steels, fabricated by the powder metallurgy process. The DSS sintered in atmosphere of N 2 -H 2 exhibit a tensile strength of at least 500 MPa with an elongation to fracture smaller than 2%. The presence of nitrides was the main cause of the deterioration in the corrosion resistance.
ISSN:0032-5899
1743-2901
DOI:10.1179/003258903225010532