THE ROLE OF NIOBIUM IN NICKEL-BASED SUPERALLOYS AND CHARACTERIZATION OF PM ALLOY EP741NP

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Acta Metallurgica Sinica (English Letters) ›› 2005, Vol. 18 ›› Issue (4): 468-478 .

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THE ROLE OF NIOBIUM IN NICKEL-BASED SUPERALLOYS AND CHARACTERIZATION OF PM ALLOY EP741NP

T. Carneiro, J. Radavich , D. Furrer

Reference Metals Co., Bridgeville, PA 15017, USA

Received:1900-01-01 Revised:1900-01-01 Online:2005-08-25 Published:2009-10-10
Contact: T. Carneiro

Abstract

Abstract: The role of niobium in nickel-based superalloys is reviewed. The importance of niobium as a strengthener is discussed. New developments in nickel-based superalloys are also briefly mentioned, including some results that show improved resistance to sulfidation by niobium. Research results from a current program on the role of niobium in the Russian powder metallurgy alloy EP741NP are presented. Future research plans on the role of niobium in superalloys are also discussed.

Key words: niobium, superalloy, alloy EP741NP

T. Carneiro, J. Radavich, D. Furrer. THE ROLE OF NIOBIUM IN NICKEL-BASED SUPERALLOYS AND CHARACTERIZATION OF PM ALLOY EP741NP[J]. Acta Metallurgica Sinica (English Letters), 2005, 18(4): 468-478 .

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THE ROLE OF NIOBIUM IN NICKEL-BASED SUPERALLOYS AND CHARACTERIZATION OF PM ALLOY EP741NP

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