Early stages of carbon segregation and precipitation in a sigma = 5 (310)[001] molybdenum tilt boundary.
A [Sigma] = 5 (310)[001] tilt grain boundary in molybdenum has been annealed at high temperature in the presence of carbon and observed in high-resolution electron microscopy. The carbon is located at the grain boundary in a 1-nm slab. Two different morphologies coexist. The first one is a grain boundary precipitation while the second one can be considered as a segregation.
Pénisson
Jean-Michel
JM
Département de Recherches Fondamentales sur la Matière Condensée, CEA-Grenoble, 17 Avenue des Martyrs, 38054 Grenoble Cedex 9, France.
Bacia
Maria
M
D000497:Alloys / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D011232:Chemical Precipitation; D003460:Crystallization; D006358:Hot Temperature; D008854:Microscopy, Electron / Q000379:methods; D015394:Molecular Structure; D008982:Molybdenum / Q000737:chemistry*
D000497:Alloys; D002244:Carbon; D008982:Molybdenum