J. Phys. Colloques
Volume 48, Numéro C3, Septembre 19874th International Aluminium Lithium Conference
|Page(s)||C3-505 - C3-511|
J. Phys. Colloques 48 (1987) C3-505-C3-511
QUANTITATIVE ANALYSIS OF INTERMETALLIC PHASES IN Al-Li ALLOYS BY ELECTRON, ION AND NUCLEAR MICROPROBESF. DEGRÈVE1, B. DUBOST1, A. DUBUS1, N.A. THORNE1, F. BODART2 et G. DEMORTIER2
1 Cégédur-Péchiney, Centre de Recherche et Développement, B.P. 27, F-38340 Voreppe, France
2 LARN, Facultés Universitaires Notre-Dame-de-la-Paix, 22, Rue Muzet B-5000 Namur, Belgium
Conventional rnicroanalytical techniques (Optical Microscopy OM, Scanning Electron Microscopy SEM, Electron Probe Micro Analysis EPMA) were used in combination with new techniques (Secondary Ion Mass Spectrometry SIMS and Nuclear Microprobe NM) to visualise and identify unknown phases in ternary and quaternary Al-Li alloys. The limitations of each technique are compensated by the unique advantages of the others : spatial resolution, qualitative and quantitative analysis of light elements such as Li. Finally, the Nuclear Microprobe may be considered as a reference method by providing standard samples on which correction procedures for the quantitative analysis of light elements by conventional techniques (SEM and EPMA) can be tested and implemented.