Relation between impurities and oxide-scale growth mechanisms on Ni-34Cr and Ni-20Cr alloys. I. Influence of C, Mn, and Si
Journal Article
·
· Oxidation of Metals; (USA)
- Universite Paris, Orsay (France)
The oxidation behavior of Ni-Cr alloys (34 and 20 wt.% Cr) was investigated between 850 and 1,200{degree}C in oxygen for a maximum duration of about 70 hr. The oxide-growth mechanism is a diffusion process controlled by either outward diffusion of chromium in Cr{sub 2}O{sub 3} (Ni-34Cr alloy) or by an increase in grain size (Ni-20Cr alloy). In the case of the Ni-34Cr alloy, low values of chromium diffusion were found for the growth of Cr{sub 2}O{sub 3} by taking into account the general equation of Wagner. The influence of impurities (Si, C, Mn, Ni) diffusing from the underlying alloy is analyzed because of their doping effect in the outer oxide scales.
- OSTI ID:
- 6554161
- Journal Information:
- Oxidation of Metals; (USA), Journal Name: Oxidation of Metals; (USA) Vol. 33:3-4; ISSN 0030-770X; ISSN OXMEA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Relation between impurities and oxide-scale growth mechanisms on Ni-34Cr and Ni-20Cr alloys. II. Influence of sulfur
The influence of (LaSr)CoO{sub 3} coatings on the electrical resistance of Ni-20Cr alloys in high temperature oxidizing atmosphere
Na$sub 2$SO$sub 4$ induced attack of Ni--20Cr--2ThO$sub 2$
Journal Article
·
Sat Mar 31 23:00:00 EST 1990
· Oxidation of Metals; (USA)
·
OSTI ID:6794477
The influence of (LaSr)CoO{sub 3} coatings on the electrical resistance of Ni-20Cr alloys in high temperature oxidizing atmosphere
Conference
·
Sat Dec 30 23:00:00 EST 1995
·
OSTI ID:242540
Na$sub 2$SO$sub 4$ induced attack of Ni--20Cr--2ThO$sub 2$
Conference
·
Mon Dec 31 23:00:00 EST 1973
·
OSTI ID:4086101
Related Subjects
36 MATERIALS SCIENCE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOY SYSTEMS
ALLOYS
BINARY ALLOY SYSTEMS
CARBON
CHEMICAL REACTIONS
CHROMIUM
CONTROL
DATA
DATA ANALYSIS
ELEMENTS
EXPERIMENTAL DATA
IMPURITIES
INFORMATION
MANGANESE
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
NICKEL
NICKEL ALLOYS
NICKEL BASE ALLOYS
NONMETALS
NUMERICAL DATA
OXIDATION
SCALE CONTROL
SEMIMETALS
SILICON
TRANSITION ELEMENTS
VERY HIGH TEMPERATURE
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOY SYSTEMS
ALLOYS
BINARY ALLOY SYSTEMS
CARBON
CHEMICAL REACTIONS
CHROMIUM
CONTROL
DATA
DATA ANALYSIS
ELEMENTS
EXPERIMENTAL DATA
IMPURITIES
INFORMATION
MANGANESE
MEASURING INSTRUMENTS
MEASURING METHODS
METALS
NICKEL
NICKEL ALLOYS
NICKEL BASE ALLOYS
NONMETALS
NUMERICAL DATA
OXIDATION
SCALE CONTROL
SEMIMETALS
SILICON
TRANSITION ELEMENTS
VERY HIGH TEMPERATURE