Condensation and condensation-diffusion coatings for turbine blades made of high-temperature alloys with a directed crystal structure

1996 ◽  
Vol 38 (4) ◽  
pp. 159-162
Author(s):  
S. A. Muboyadzhyani ◽  
S. A. Budinovskii
Keyword(s):  
Crystal Structure ◽  
High Temperature ◽  
Turbine Blades ◽  
Diffusion Coatings ◽  
High Temperature Alloys

De-alloying and fatigue of high temperature alloys used for gas turbine blades

1995 ◽  
Vol 13 (2) ◽  
pp. 81-86 ◽  
Author(s):  
L. B. Getsov ◽  
A. I. Rybnikov ◽  
P. G. Krukovski ◽  
E. C. Kartavova
Keyword(s):  
High Temperature ◽  
Gas Turbine ◽  
Turbine Blades ◽  
Gas Turbine Blades ◽  
High Temperature Alloys

Features of the single crystal structure of the turbine blades made of carbon-free and carbon-containing nickel superalloys

2018 ◽  
Vol 84 (6) ◽  
pp. 38-43
Author(s):  
E. M. Visik ◽  
V. V. Gerasimov ◽  
E. V. Kolyadov ◽  
E. V. Filonova
Keyword(s):  
Crystal Structure ◽  
High Temperature ◽  
Single Crystal ◽  
Nickel Alloys ◽  
Turbine Blades ◽  
Single Crystal Structure ◽  
Surface Zone ◽  
Directional Crystallization ◽  
Near Surface ◽  
Heat Resistant

A comparative study of structural features of the blade castings having a single-crystal structure and made of heat-resistant carbon-free and carbon-containing high-temperature nickel alloys upon directional crystallization with 001 crystallographic orientation is carried out. The results of the effect of directional crystallization modes on the formation of the structure and defects of castings of working blades made of carbon-containing and carbon-free high-temperature nickel alloys are presented. Changes in the degree of pickling of the near-surface layer of casting are presented as a function of pickling conditions. The microstructure of the near-surface zone of castings made of ZhS32 heat-resistant alloy is studied after different modes of their technological processing. It is shown that blade castings with a single-crystal structure made of heat-resistant carbon-free superalloys have a tendency to formation of the block structure and appearance of surface recrystallized grains. Recommendations on the use of methods of nondestructive X-ray control of blades made of carbon-frees alloys and precautions regarding birth of microporosity on the shelf and in the blade lock are specified.

UDIMET L-605

Alloy Digest ◽  
2004 ◽  
Vol 53 (12) ◽  
Keyword(s):  
Corrosion Resistance ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Gas Turbine ◽  
Oxidation Resistance ◽  
Turbine Blades ◽  
Heat Treating ◽  
Gas Turbine Blades ◽  
Temperature Performance

Abstract Udimet L-605 is a high-temperature aerospace alloy with excellent strength and oxidation resistance. It is used in applications such as gas turbine blades and combustion area parts. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: CO-109. Producer or source: Special Metals Corporation.

Segregation of Refractory Metals at Grain Boundaries in High-Temperature Alloys

2020 ◽  
Vol 2020 (11) ◽  
pp. 1292-1299
Author(s):  
I. M. Razumovskii ◽  
V. I. Razumovskiy ◽  
I. A. Logachev ◽  
A. O. Rodin ◽  
M. I. Razumovsky
Keyword(s):  
High Temperature ◽  
Grain Boundaries ◽  
Refractory Metals ◽  
High Temperature Alloys

scholarly journals High-pressure synthesis and crystal structure of the mixed-cation borate Ga4In4B15O33(OH)3

2019 ◽  
Vol 74 (4) ◽  
pp. 357-363
Author(s):  
Daniela Vitzthum ◽  
Hubert Huppertz
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
High Temperature ◽  
Diffraction Data ◽  
X Ray Diffraction ◽  
Synthesis And Crystal Structure ◽  
X Ray ◽  
Mixed Cation ◽  
High Pressure High Temperature ◽  
Pressure Synthesis

AbstractThe mixed cation triel borate Ga4In4B15O33(OH)3 was synthesized in a Walker-type multianvil apparatus at high-pressure/high-temperature conditions of 12.5 GPa and 1300°C. Although the product could not be reproduced in further experiments, its crystal structure could be reliably determined via single-crystal X-ray diffraction data. Ga4In4B15O33(OH)3 crystallizes in the tetragonal space group I41/a (origin choice 2) with the lattice parameters a = 11.382(2), c = 15.244(2) Å, and V = 1974.9(4) Å3. The structure of the quaternary triel borate consists of a complex network of BO4 tetrahedra, edge-sharing InO6 octahedra in dinuclear units, and very dense edge-sharing GaO6 octahedra in tetranuclear units.

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