The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades

Alexander Stepanovich Verin

doi:doi:10.11648/j.es.20200501.11

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The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades

Alexander Stepanovich Verin

Published in Engineering Science (Volume 5, Issue 1)

Received: 13 January 2020 Accepted: 17 February 2020 Published: 15 May 2020

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Abstract

In this paper it is study a problem of multigrid schemes in two space dimensions and differential operator formula of Laplace and Lagrang for numerical tests, including a composition parameters of microstructures obtained by the DDS method. This technological possibilities of directed crystallization are broad and make it possible to manufacture castings from high- temperature alloys with various sets of properties. The present work is devoted to the possibilities of intensifying directed crystallization of the Ni₃Al intermetallic compound by improving of feeding the growth casting, which makes it possible to control the process of structure formation and thus change the properties of material. Directed crystallization of the intermetallic compound is a very complex and unsteady process. This seems to be connected not only with that aluminum segregates in the mother solution that feeds the growing casting but also with the scale factor, i. e., the height of the column of the mother melt and its mold. We can infer from these data that the crystallization conditions in fabricating castings by the developed method are in better equilibrium. These conditions are provided by the dosed feeding of the liquid metal into the casting zone. The alloy obtained by the suggested method has higher mechanical characteristics for temperature ranging from room temperature to 1200°C than metal melted with the use of directed crystallization by the conventional method (CDS).

Published in	Engineering Science (Volume 5, Issue 1)
DOI	10.11648/j.es.20200501.11
Page(s)	1-4
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

Intermetallid Ni₃Al, Structure, 100 h. Strength, Model

References

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[2]	G. A. Korn and T. M. Korn. Mathematical hand book for scientists and engineers. 1961. MGRAW-Hill book company. Inc. New York, Toronto, London. Paragraph 20.8
[3]	A. S. Verin. Future secret of turbine blades Ni₃Al-NiAl –base. 2015, Moscow. Tolmach. p. 133-141. isbn 978-5-91656-026-8.
[4]	Michael. J. Mossinghoff, Christopher G. Pinner, and Jeffrey D. Vaaler. 1998. Perturbing Polynomials With All Their Roots On The Unit Circle. Mathematics (Math.) of Computation (Comp.) V. 67, № 224, Р. 1707-1726.
[5]	Zhangxin, and Peter Oswald. 1998. Multigrid And MultilevelMethods For Nonconforming Q₁ Elements. Math. Comp. № 222, P. 667-693.
[6]	Gerhard S. 1986. Intermetallic phases as High- temperature Materials. Zeitschrift Mrtallkundsr, № 10, 654-666.
[7]	W. O. Alexsander and S. Watanabe. 1937. The Construction of the Nickel-aluminium System. J. Inst. Metals, [A], V. 61, N 2, p. 247-263.
[8]	A. S. Verin, M. A. Verin. 2001. Intermetallids Ni₃Al and Fe₃Al with Directional Structure as Future Materials. ACMM, V. 48, N. 5, p. 298-303.
[9]	A. S. Verin, M. A. Verin. 2002 Directional Solidification- a Way to Control the Microstructure and Properties of Ni₃Al and Fe₃Al Intermetallids. Proceedings of the World Foundry Congress. Gyeongiu, Korea, p. 1023-32.
[10]	A. S. Verin, M. A. Verin. 2005. The High- temperature Oxidation Resistance of Thin-walled Ingots of Ni₃Al Alloys with Directional Structure. ACMM, v. 52, N. 46, p. 233-236.
[11]	Copley WS. M., Kear B. N. 1967. Temperature and orientation dependence of the flow stress in off-stoichiometric Ni₃Al (γ, phase). AIME, v. 239, No 6, pp. 233-236.
[12]	R. W. Chan. Physical metallugy. Amsterdam (1965).
[13]	Yi P., Kewei S. 2000. Preperaration of Ti/Ni₃Al composites by upward infiltration. Matter. sci. technol., v. 16, No 4, pp. 387-92.
[14]	A. S. Verin 1998. Special Features of Phase Formation in Ni₃Al Intermetallic Copound Under Directed Crystallization with Dosed Feeding of the Mother Melt to the Casting (Part1). Metal Science and Heat Treatment, V. 40, No 7-8, p. 332-335.
[15]	Moussa S. O., Mozsi K. J. 2002. Reactive sintering of boron-doped Ni₃Al intermetallic. Mater. Sci, v. 37, No 10. pp. 2000-9.

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Alexander Stepanovich Verin. (2020). The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades. Engineering Science, 5(1), 1-4. https://doi.org/10.11648/j.es.20200501.11

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Alexander Stepanovich Verin. The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades. Eng. Sci. 2020, 5(1), 1-4. doi: 10.11648/j.es.20200501.11

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Alexander Stepanovich Verin. The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades. Eng Sci. 2020;5(1):1-4. doi: 10.11648/j.es.20200501.11

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@article{10.11648/j.es.20200501.11,
  author = {Alexander Stepanovich Verin},
  title = {The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades},
  journal = {Engineering Science},
  volume = {5},
  number = {1},
  pages = {1-4},
  doi = {10.11648/j.es.20200501.11},
  url = {https://doi.org/10.11648/j.es.20200501.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.es.20200501.11},
  abstract = {In this paper it is study a problem of multigrid schemes in two space dimensions and differential operator formula of Laplace and Lagrang for numerical tests, including a composition parameters of microstructures obtained by the DDS method. This technological possibilities of directed crystallization are broad and make it possible to manufacture castings from high- temperature alloys with various sets of properties. The present work is devoted to the possibilities of intensifying directed crystallization of the Ni3Al intermetallic compound by improving of feeding the growth casting, which makes it possible to control the process of structure formation and thus change the properties of material. Directed crystallization of the intermetallic compound is a very complex and unsteady process. This seems to be connected not only with that aluminum segregates in the mother solution that feeds the growing casting but also with the scale factor, i. e., the height of the column of the mother melt and its mold. We can infer from these data that the crystallization conditions in fabricating castings by the developed method are in better equilibrium. These conditions are provided by the dosed feeding of the liquid metal into the casting zone. The alloy obtained by the suggested method has higher mechanical characteristics for temperature ranging from room temperature to 1200°C than metal melted with the use of directed crystallization by the conventional method (CDS).},
 year = {2020}
}

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TY  - JOUR
T1  - The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades
AU  - Alexander Stepanovich Verin
Y1  - 2020/05/15
PY  - 2020
N1  - https://doi.org/10.11648/j.es.20200501.11
DO  - 10.11648/j.es.20200501.11
T2  - Engineering Science
JF  - Engineering Science
JO  - Engineering Science
SP  - 1
EP  - 4
PB  - Science Publishing Group
SN  - 2578-9279
UR  - https://doi.org/10.11648/j.es.20200501.11
AB  - In this paper it is study a problem of multigrid schemes in two space dimensions and differential operator formula of Laplace and Lagrang for numerical tests, including a composition parameters of microstructures obtained by the DDS method. This technological possibilities of directed crystallization are broad and make it possible to manufacture castings from high- temperature alloys with various sets of properties. The present work is devoted to the possibilities of intensifying directed crystallization of the Ni3Al intermetallic compound by improving of feeding the growth casting, which makes it possible to control the process of structure formation and thus change the properties of material. Directed crystallization of the intermetallic compound is a very complex and unsteady process. This seems to be connected not only with that aluminum segregates in the mother solution that feeds the growing casting but also with the scale factor, i. e., the height of the column of the mother melt and its mold. We can infer from these data that the crystallization conditions in fabricating castings by the developed method are in better equilibrium. These conditions are provided by the dosed feeding of the liquid metal into the casting zone. The alloy obtained by the suggested method has higher mechanical characteristics for temperature ranging from room temperature to 1200°C than metal melted with the use of directed crystallization by the conventional method (CDS).
VL  - 5
IS  - 1
ER  -

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Author Information

Alexander Stepanovich Verin

All-Russian Institute of Aircraft Materials, Moscow, Russia

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APA Style

Alexander Stepanovich Verin. (2020). The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades. Engineering Science, 5(1), 1-4. https://doi.org/10.11648/j.es.20200501.11

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ACS Style

Alexander Stepanovich Verin. The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades. Eng. Sci. 2020, 5(1), 1-4. doi: 10.11648/j.es.20200501.11

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AMA Style

Alexander Stepanovich Verin. The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades. Eng Sci. 2020;5(1):1-4. doi: 10.11648/j.es.20200501.11

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@article{10.11648/j.es.20200501.11,
  author = {Alexander Stepanovich Verin},
  title = {The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades},
  journal = {Engineering Science},
  volume = {5},
  number = {1},
  pages = {1-4},
  doi = {10.11648/j.es.20200501.11},
  url = {https://doi.org/10.11648/j.es.20200501.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.es.20200501.11},
  abstract = {In this paper it is study a problem of multigrid schemes in two space dimensions and differential operator formula of Laplace and Lagrang for numerical tests, including a composition parameters of microstructures obtained by the DDS method. This technological possibilities of directed crystallization are broad and make it possible to manufacture castings from high- temperature alloys with various sets of properties. The present work is devoted to the possibilities of intensifying directed crystallization of the Ni3Al intermetallic compound by improving of feeding the growth casting, which makes it possible to control the process of structure formation and thus change the properties of material. Directed crystallization of the intermetallic compound is a very complex and unsteady process. This seems to be connected not only with that aluminum segregates in the mother solution that feeds the growing casting but also with the scale factor, i. e., the height of the column of the mother melt and its mold. We can infer from these data that the crystallization conditions in fabricating castings by the developed method are in better equilibrium. These conditions are provided by the dosed feeding of the liquid metal into the casting zone. The alloy obtained by the suggested method has higher mechanical characteristics for temperature ranging from room temperature to 1200°C than metal melted with the use of directed crystallization by the conventional method (CDS).},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - The Method of Dosed Directional Solidification (DDS) for Casting Turbine Blades
AU  - Alexander Stepanovich Verin
Y1  - 2020/05/15
PY  - 2020
N1  - https://doi.org/10.11648/j.es.20200501.11
DO  - 10.11648/j.es.20200501.11
T2  - Engineering Science
JF  - Engineering Science
JO  - Engineering Science
SP  - 1
EP  - 4
PB  - Science Publishing Group
SN  - 2578-9279
UR  - https://doi.org/10.11648/j.es.20200501.11
AB  - In this paper it is study a problem of multigrid schemes in two space dimensions and differential operator formula of Laplace and Lagrang for numerical tests, including a composition parameters of microstructures obtained by the DDS method. This technological possibilities of directed crystallization are broad and make it possible to manufacture castings from high- temperature alloys with various sets of properties. The present work is devoted to the possibilities of intensifying directed crystallization of the Ni3Al intermetallic compound by improving of feeding the growth casting, which makes it possible to control the process of structure formation and thus change the properties of material. Directed crystallization of the intermetallic compound is a very complex and unsteady process. This seems to be connected not only with that aluminum segregates in the mother solution that feeds the growing casting but also with the scale factor, i. e., the height of the column of the mother melt and its mold. We can infer from these data that the crystallization conditions in fabricating castings by the developed method are in better equilibrium. These conditions are provided by the dosed feeding of the liquid metal into the casting zone. The alloy obtained by the suggested method has higher mechanical characteristics for temperature ranging from room temperature to 1200°C than metal melted with the use of directed crystallization by the conventional method (CDS).
VL  - 5
IS  - 1
ER  -

Copy | Download