Impurity segregation to grain boundaries

Journal Article · Tue May 01 04:00:00 EDT 1973 · J. Test. Eval., v. 1, no. 3, pp. 202-208

OSTI ID:4385902

Joshi, A; Stein, D F

Minute quantities of impurities present in a material can have a major influence on the mechanical, chemical, or electrical properties of materials when they are segregated in localized regions. Since grain boundaries are often the preferred regions for segregation, it is not surprising that the properties of grain boundaries differ from the bulk resulting in such phenomena as intergranular fracture and intergranular corrosion. The objectives of this paper are to demonstrate the usefulness of Auger spectroscopy in determining segregation, the role of segregation in the deterioration of properties, and to discuss our present understanding of the mechanisms for segregation. (9 figures, 37 references) (auth)

• Research Organization: Brookhaven National Lab., Upton, NY
• NSA Number: NSA-29-016266
• OSTI ID: 4385902
• Journal Information: J. Test. Eval., v. 1, no. 3, pp. 202-208, Journal Name: J. Test. Eval., v. 1, no. 3, pp. 202-208; ISSN JTEVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

*AUGER EFFECT-- USES
*GRAIN BOUNDARIES-- SPECTROSCOPY
*STEELS-- EMBRITTLEMENT
*TUNGSTEN-- EMBRITTLEMENT
IMPURITIES
METALS
N40130 --Chemistry--Analytical & Separations Chemistry--Radiometric & Radiochemical Procedures
N50230* --Metals
Ceramics
& Other Materials--Metals & Alloys--Properties
Structure & Phase Studies
SEGREGATION