Depth distribution of lithium in oxidized binary Al-Li alloys determined by secondary ion mass spectrometry and neutron depth profiling

Journal Article · Fri Jan 01 00:00:00 EST 1993 · Corrosion (Houston); (United States)

DOI:https://doi.org/10.5006/1.3316032· OSTI ID:6403548

Soni, K K ^[1]; Williams, D B ^[2]; Newbury, D E; Chi, P; Downing, R G; Lamaza, G ^[3]

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1. Univ. of Chicago, IL (United States)
2. Lehigh Univ., Bethlehem, PA (United States)
3. National Inst. of Standards and Technology, Gaithersburg, MD (United States)

Oxidation of binary Al-Li alloys during short exposures at 530 C and long exposures at 200 C was studied with regard to the Li distribution. Secondary ion mass spectrometry (SIMS) and neutron depth profiling (NDP) were used to obtain quantitative Li depth profiles across the surface oxide layer and the underlying alloy. The underlying alloy was depleted in Li as a result of oxidation at 530 and 200 C. The SIMS and NDP results showed good mutual agreement and were used to evaluate the oxide thickness, the Li concentration at the oxide-ally interface, and the mass balance between oxide and alloy. The Li depletion profiles in the alloy were also calculated using the interdiffusion coefficients reported in the literature and compared with the measured profiles; the two profiles differed at 530 C but showed good agreement at 200 C.

• OSTI ID: 6403548
• Journal Information: Corrosion (Houston); (United States), Vol. 49:1; ISSN 0010-9312
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ALUMINIUM BASE ALLOYS
ION MICROPROBE ANALYSIS
OXIDATION
LITHIUM ALLOYS
PROTECTIVE COATINGS
CHEMICAL ANALYSIS
DEPTH
DISTRIBUTION
INTERFACES
LITHIUM
LITHIUM OXIDES
MASS SPECTROSCOPY
THICKNESS
ALKALI METAL COMPOUNDS
ALKALI METALS
ALLOYS
ALUMINIUM ALLOYS
CHALCOGENIDES
CHEMICAL REACTIONS
COATINGS
DIMENSIONS
ELEMENTS
LITHIUM COMPOUNDS
METALS
MICROANALYSIS
NONDESTRUCTIVE ANALYSIS
OXIDES
OXYGEN COMPOUNDS
SPECTROSCOPY
360105* - Metals & Alloys- Corrosion & Erosion
400102 - Chemical & Spectral Procedures