We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Morphological Transition in the Cellular Structure of Single Crystals of Nickel–Tungsten Alloys near the Congruent Melting Point.
- Authors
Azhazha, V. M.; Ladygin, A. N.; Sverdlov, V. Ja.; Zhemanyuk, P. D.; Klochikhin, V. V.
- Abstract
The structure and microhardness of single crystals of nickel–tungsten alloys containing 25–36 wt % W are investigated. The temperature gradient at the crystallization front and the velocity of the crystallization front are the variable parameters of directional crystallization. It is found that, when the velocity of the crystallization front is 4 mm/min, the morphology of the cellular structure of the single crystals grown from nickel–tungsten alloys changes from square cells to hexagonal cells at a tungsten content of greater than or equal to 31 wt %. As the velocity of the crystallization front increases to 10 mm/min, no morphological transition occurs. It is shown that impurities play an important role in the formation of a cellular structure with cells of different types. © 2005 Pleiades Publishing, Inc.
- Subjects
CRYSTALS; CRYSTAL growth; CRYSTALLIZATION; NICKEL alloys; TUNGSTEN alloys; TRANSITION metals
- Publication
Crystallography Reports, 2005, Vol 50, Issue 7, pS130
- ISSN
1063-7745
- Publication type
Article
- DOI
10.1134/1.2133988