THE ROLE OF NIOBIUM IN NICKEL-BASED SUPERALLOYS AND CHARACTERIZATION OF PM ALLOY EP741NP
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.
作 者： T. Carneiro J. Radavich D. Furrer 作者单位： T. Carneiro(Reference Metals Co., Bridgeville, PA 15017, USA)J. Radavich(Micro-Met Laboratories, West Lafayette, IN 47906, USA)
D. Furrer(Ladish Go., Inc., Gudahy, WI 53110, USA)
刊 名： 金属学报（英文版） ISTIC EI 英文刊名： ACTA METALLURGICA SINICA 年，卷(期)： 2005 18(4) 分类号： O6 关键词： niobium superalloy alloy EP741NP powder metallurgy superalloy nickel-based superalloy disk material