Sulfur segregation to gain boundaries in Ni/sub 3/Al and Ni/sub 3/(Al,Ti) alloys

Journal Article · Sat Dec 31 23:00:00 EST 1977 · Metall. Trans., A; (United States)

DOI:https://doi.org/10.1007/BF02647165· OSTI ID:6645672

White, C L ^[1]; Stein, D F

---

1. Oak Ridge National Lab., TN

The segregation of S to grain boundaries in Ni/sub 3/Al and Ni/sub 3/(Al, Ti) has been studied using Auger electron spectroscopy. The S concentration at the grain boundaries decreases more slowly with increasing temperature than would be predicted by segregation models based on a single solute binding energy to the grain boundaries. This behavior, which can be interpreted as an increase in the effective solute binding energy for a grain boundary as a function of temperature, is consistent with predictions of a model based on the existence of a spectrum of solute binding energies for grain boundaries.

• OSTI ID: 6645672
• Journal Information: Metall. Trans., A; (United States), Journal Name: Metall. Trans., A; (United States) Vol. 9; ISSN MTTAB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102 -- Metals & Alloys-- Structure & Phase Studies
360105* -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
ALUMINIUM ALLOYS
BINDING ENERGY
CHEMICAL REACTIONS
CORROSION
CRACKS
CRYSTAL STRUCTURE
ELEMENTS
ENERGY
FRACTURE PROPERTIES
GRAIN BOUNDARIES
HIGH TEMPERATURE
MECHANICAL PROPERTIES
MICROSTRUCTURE
NICKEL ALLOYS
NICKEL BASE ALLOYS
NONMETALS
SEGREGATION
STRESS CORROSION
SULFUR
TITANIUM ALLOYS