Author： Haugsrud R.
Publisher： Springer Publishing Company
ISSN： 0030-770X
Source： Oxidation of Metals, Vol.55, Iss.5-6, 2001-06, pp. : 571-583
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Ni–20 wt.% Cu was oxidized in different oxygen pressures from 1×10^−5 to 1 atm at 700–1100°C. The oxidation consisted of an initial transient period in which a composite scale of NiO and Cu oxides formed, and a subsequent quasi steady-state regime during which parabolic growth of NiO determined the overall oxidation rate. Based on the oxide composition and the oxygen- pressure dependence of the parabolic rate constant, it is concluded that outward transport of Ni via vacancies determines the growth rate of the oxide during the steady-state period, either in the grain boundaries or in the lattice. The influence of Cu dissolved in NiO on the oxidation rate and the oxygen-pressure dependence of the parabolic rate constants is discussed.
Related content
On the High-Temperature Oxidation of Cu-Rich Cu-Ni Alloys
Oxidation of Metals, Vol. 50, Iss. 3-4, 1998-10 ,pp. :
Access to resources
Recommend
Oxidation of Two Ternary Cu–Ni–20 wt.% Cr Alloys at 700–800°C in 1 atm O2
By Cao Z.Q. Niu Y. Gesmundo F.
Oxidation of Metals, Vol. 56, Iss. 3-4, 2001-10 ,pp. :
By Yin Lan Balaji Sukumar Sridhar Seetharaman
Metallurgical and Materials Transactions B, Vol. 41, Iss. 3, 2010-06 ,pp. :