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The effect of chemical and phase composition on collective and selective corrosion of Ti-(0-3)% Ni alloys

Journal Article · · Protection of Metals
OSTI ID:166756
; ;  [1]
  1. Inst. of Physical Chemistry, Moscow (Russian Federation)
Nickel additions to hot acidified salt solutions increase the passivability and pitting-corrosion resistance of titanium. This effect is attributed to the cathodic efficiency of back-deposited nickel or intermetallic Ti{sub 2}Ni. The Ti{sub 2}Ni phase in the alloy increases the corrosion resistance of titanium considerably more than does nickel in the solid solution. In aggressive corrosion environments where the alloy is active, a slight addition of nickel increases the titanium-corrosion rate. The mechanism whereby nickel affects the active corrosion and passivation of titanium has been insufficiently studied.
OSTI ID:
166756
Journal Information:
Protection of Metals, Journal Name: Protection of Metals Journal Issue: 2 Vol. 30; ISSN 0033-1732; ISSN PTNMAR
Country of Publication:
United States
Language:
English