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Corrosion resistance of the high‐strength filler metal NiCr20Fe14Mo11WN (alloy 50 PLUS)
Author(s) -
Brill U.
Publication year - 2004
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.200403799
Subject(s) - materials science , alloy , corrosion , metallurgy , crevice corrosion , 6111 aluminium alloy , nitride , niobium , austenite , pitting corrosion , composite material , microstructure , layer (electronics)
The Nb‐free NiCr20Fe14Mo11WN alloy has been developed as a new filler metal which combines high strength and excellent corrosion resistance in wet environments at ambient temperatures. The alloy is characterized by exceptional resistance to pitting and crevice corrosion, no sensitiveness to chloride induced stress corrosion cracking and shows high mechanical properties, e.g. 0.2 %‐yield strength. Because the alloy is practically free of stable nitride formers like niobium, titanium etc., no nitride formation during welding of super austenitic, duplex and super duplex steels is possible, which proves the alloy to be superior to alloy 625.