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- Title
The Growth of Single Crystals of Ni–W Alloy under Conditions of High Temperature Gradient.
- Authors
Azhazha, V. M.; Gorbenko, Yu. V.; Kovtun, G. P.; Ladygin, A. N.; Malykhin, D. G.; Rudycheva, T. Yu.; Sverdlov, V. Ya.; Shcherban, A. P.; Zhemanyuk, P. D.; Klochikhin, V. V.
- Abstract
The structure of single crystals of the NV-4 nickel alloy containing 32–36 wt % W is investigated. The temperature gradient at the crystallization front and the velocity of the crystallization front are the variable parameters of directional crystallization. The degrees of structural perfection of the single crystals grown under different conditions are compared. The crystallization parameters providing growth of single crystals that have high structural perfection and can be successfully used as seeds for the growth of single-crystal blades are determined. Typical defects formed upon directional crystallization of single crystals of the Ni–W (35 wt %) alloy are examined. The studied defects are classified, and the factors responsible for the disturbance of the single-crystal structure are analyzed. © 2004 MAIK “Nauka / Interperiodica”.
- Subjects
CRYSTALS; HIGH temperatures; NICKEL alloys; CRYSTALLIZATION; SPEED; ALLOYS
- Publication
Crystallography Reports, 2004, Vol 49, Issue 2, p307
- ISSN
1063-7745
- Publication type
Article
- DOI
10.1134/1.1690436