scholarly journals Centrifugal SHS-metallurgy of nickel aluminide based eutectic alloys

2015 ◽  
pp. 35
Author(s):  
V. N. Sanin ◽  
D. M. Ikornikov ◽  
D. E. Andreev ◽  
V. I. Yukhvid
Keyword(s):  
Nickel Aluminide ◽  
Eutectic Alloys ◽  
Shs Metallurgy ◽  
Centrifugal Shs

scholarly journals Centrifugal SHS metallurgy of nickel aluminide-based eutectic alloys

2014 ◽  
Vol 55 (6) ◽  
pp. 613-619 ◽  
Author(s):  
V. N. Sanin ◽  
D. M. Ikornikov ◽  
D. E. Andreev ◽  
V. I. Yukhvid
Keyword(s):  
Nickel Aluminide ◽  
Eutectic Alloys ◽  
Shs Metallurgy ◽  
Centrifugal Shs

Centrifugal SHS Metallurgy of Cast Co-Cr-Fe-Ni-Mn High-Entropy Alloys Strengthened by Precipitates Based on Mo and Nb Borides and Silicides

2021 ◽  
Vol 24 (6) ◽  
pp. 692-700
Author(s):  
V. N. Sanin ◽  
D. M. Ikornikov ◽  
O. A. Golosova ◽  
D. E. Andreev ◽  
V. I. Yukhvid
Keyword(s):  
High Entropy Alloys ◽  
High Entropy ◽  
Shs Metallurgy ◽  
Centrifugal Shs

Investigation into the influence of the remelting temperature on the structural heredity of alloys fabricated by centrifugal SHS metallurgy

2016 ◽  
Vol 57 (2) ◽  
pp. 124-130 ◽  
Author(s):  
V. V. Sanin ◽  
M. R. Filonov ◽  
V. I. Yukhvid ◽  
Yu. A. Anikin ◽  
A. M. Mikhailov
Keyword(s):  
Shs Metallurgy ◽  
Structural Heredity ◽  
Centrifugal Shs

scholarly journals Synthesis of composite materials on cobalt and nickel bases via centrifugal SHS-metallurgy

2021 ◽  
Vol 12 (2-2021) ◽  
pp. 107-110
Author(s):  
K. V. Zakharov ◽  
◽  
D. E. Andreev ◽  
V. I. Yukhvid ◽  
N. Yu. Khomenko ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Modern Technology ◽  
Chemical Transformations ◽  
Shs Metallurgy ◽  
Centrifugal Shs ◽  
Combustion Processes ◽  
Synthesized Materials ◽  
Cobalt And Nickel

This paper discusses the synthesis regularities of new composite materials via combustion processes and their features of physicochemical transformations for task of a modern technology. In early studies, the authors showed the possibility of synthesizing composite materials via centrifugal SHS metallurgy, in which the combustion of thermite mixtures and the chemical transformations were studied. The compositions, structures and mechanical properties of the synthesized materials were also investigated

Centrifugal SHS-Metallurgy of Composite Materials Mo–Si–B

2020 ◽  
Vol 14 (2) ◽  
pp. 261-265 ◽  
Author(s):  
D. E. Andreev ◽  
Yu. S. Vdovin ◽  
V. I. Yukhvid ◽  
N. V. Sachkova ◽  
I. D. Kovalev
Keyword(s):  
Composite Materials ◽  
Shs Metallurgy ◽  
Centrifugal Shs

Grain Boundary Melting and Hot Cracking in Weld Haz of A Two-Phase Ni3Al Alloy Containing Zr

1994 ◽  
Vol 364 ◽  
Author(s):  
Huaxin Li ◽  
T.K. Chaki
Keyword(s):  
Grain Boundary ◽  
Heat Affected Zone ◽  
Nickel Aluminide ◽  
Thermal Stresses ◽  
Hot Cracking ◽  
Cast Billet ◽  
Eutectic Alloys ◽  
Incipient Melting ◽  
Two Phase ◽  
Investment Cast

AbstractGrain boundary melting and its effect on hot cracking in the weld heat-affected zone (HAZ) have been investigated in the investment cast billet of a two-phase (γ + γ′) nickel aluminide alloy (Ni74.48Al16.98Cr8.02Zr0.51B0.10), designated as IC-218. Due to enrichment of Zr, which can form eutectic alloys with Ni, the dendritic boundaries melted incipiently at 1150°C. Under thermal stresses during welding the molten layers often opened up producing liquation cracks at the boundaries in the HAZ. Annealing at 1100°C in argon for 23 h prior to welding reduced the incipient melting temperature to 1125°C and increased the propensity of liquation cracking in the HAZ.

Incipient Melting and Oxidation of Grain Boundary in a Two-Phase Ni3Al Alloy Containing Zr

1994 ◽  
Vol 364 ◽  
Author(s):  
Huaxin Li ◽  
T.K. Chaki
Keyword(s):  
Grain Boundary ◽  
Grain Boundaries ◽  
Nickel Aluminide ◽  
Elevated Temperatures ◽  
Cast Billet ◽  
Eutectic Alloys ◽  
Incipient Melting ◽  
Two Phase ◽  
Investment Cast ◽  
Zr Alloy

AbstractIncipient melting and oxidation of grain boundaries at elevated temperatures have been investigated in the investment cast billet of a two-phase (γ + γ′) nickel aluminide alloy (Ni74.48Al16.98Cr8.02Zr0.51B0.10), designated as IC-218. Due to enrichment of Zr, which can form eutectic alloys with Ni, the inter-dendritic regions and grain boundaries melted incipiently at 1150°C. During quenching the molten layers often opened up producing cracks at the boundaries. Annealing at 1200°C in air for 570 min produced elongated ZrO2 precipitates at the grain boundaries. There was Zr depletion inside the grains in the vicinity of the precipitates. Such precipitates were scarcely observed in the specimens annealed in air at 1100°C for 23 h. Thus, the molten Ni-Zr alloy at the boundaries promoted internal oxidation.

scholarly journals Centrifugal SHS-metallurgy of nitrogen steels

2018 ◽  
Vol 8 (4) ◽  
pp. 499-503 ◽  
Author(s):  
V. I. Yukhvid ◽  
D. M. Ikornikov ◽  
D. E. Andreev ◽  
V. N. Sanin ◽  
M. I. Alymov ◽  
...  
Keyword(s):  
Shs Metallurgy ◽  
Centrifugal Shs ◽  
Nitrogen Steels

Chemical partitioning of elements in Ni-base MC-carbide reinforced eutetic superalloys

1983 ◽  
Vol 41 ◽  
pp. 250-251
Author(s):  
E. F. Koch ◽  
E. L. Hall ◽  
S. W. Yang
Keyword(s):  
Alloy Composition ◽  
Volume Fraction ◽  
Lattice Mismatch ◽  
Turbine Blades ◽  
Eutectic Alloys ◽  
Alloy Matrix ◽  
X Ray ◽  
Gas Turbine Blades ◽  
Analytical Electron ◽  
Analytical Electron Microscope

The plane-front solidified eutectic alloys consisting of aligned tantalum monocarbide fibers in a nickel alloy matrix are currently under consideration for future aircraft and gas turbine blades. The MC fibers provide exceptional strength at high temperatures. In these alloys, the Ni matrix is strengthened by the precipitation of the coherent γ' phase (ordered L12 structure, nominally Ni3Al). The mechanical strength of these materials can be sensitively affected by overall alloy composition, and these strength variations can be due to several factors, including changes in solid solution strength of the γ matrix, changes in they γ' size or morphology, changes in the γ-γ' lattice mismatch or interfacial energy, or changes in the MC morphology, volume fraction, thermal stability, and stoichiometry. In order to differentiate between these various mechanisms, it is necessary to determine the partitioning of elemental additions between the γ,γ', and MC phases. This paper describes the results of such a study using energy dispersive X-ray spectroscopy in the analytical electron microscope.

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