Fim atom-probe investigation of the interphase boundary of a nickel-base superalloy
Résumé
The matrix-precipitate interface of a nickel-base superalloy has been studied using a time-of-flight atom-probe. A layer-by-layer analysis of (200) planes was performed normally to the interphase boundary. The composition profile obtained shows that the phase change occurs within one atomic layer. In addition, the results indicate that the interface is located on a mixed plane of the ordered precipitate (L12 type structure). ?? 1986.