Grain boundary segregation of Ni in W
Journal Article
·
· Scr. Metall.; (United States)
The compatibility between Ni and W is an important consideration in a number of structural applications involving tungsten alloys. Here, results of an experimental study using Auger electron spectroscopy are presented which provide direct evidence of grain boundary segregation of Ni in W. It is also demonstrated that the segregation of nickel results in a severe embrittlement of tungsten filaments. Also, the activation energy for grain boundary diffusion of Ni in W has been calculated to be 358 kJ/mol, almost identical to the activation energy for recrystallization of dilute W-Ni alloys. This suggests that grain boundary diffusion of Ni may govern the recrystallization processes in dilute W-Ni alloys. 11 references.
- Research Organization:
- Lockheed Research Labs., Palo Alto, CA
- OSTI ID:
- 6015312
- Journal Information:
- Scr. Metall.; (United States), Journal Name: Scr. Metall.; (United States) Vol. 18; ISSN SCRMB
- Country of Publication:
- United States
- Language:
- English
Similar Records
Multiscale Modeling of Grain Boundary Segregation and Embrittlement in Tungsten for Mechanistic Design of Alloys for Coal Fired Plants
Study of grain boundary segregation using the Auger electron emission technique. Annual technical progress report, VII, January 1, 1977--December 31, 1977
Environmental embrittlement and grain boundary segregation of boron in Ni[sub 3](Si,Ti) and Co[sub 3]Ti alloys
Technical Report
·
Sun Sep 29 00:00:00 EDT 2013
·
OSTI ID:1096566
Study of grain boundary segregation using the Auger electron emission technique. Annual technical progress report, VII, January 1, 1977--December 31, 1977
Technical Report
·
Fri Dec 31 23:00:00 EST 1976
·
OSTI ID:5257965
Environmental embrittlement and grain boundary segregation of boron in Ni[sub 3](Si,Ti) and Co[sub 3]Ti alloys
Journal Article
·
Tue Dec 14 23:00:00 EST 1993
· Scripta Metallurgica et Materialia; (United States)
·
OSTI ID:5875591