Solutions for minimizing porosity in casting large-sized gas turbine blades

Part 2
Yakovlev E. I.
UDC
621.74.04
DOI
10.18577/2307-6046-2026-0-3-44-53
Article PDF (Russian) (1.11 MB)
How to cite
Yakovlev E. I. Solutions for minimizing porosity in casting large-sized gas turbine blades. Part 2 // Proceedings of VIAM. 2026. No. 3. DOI: 10.18577/2307-6046-2026-0-3-44-53. URL: https://test.viam.ru/en/journal/2026/3/4
Keywords
large-sized cast turbine blades, fine-grained structure, equiaxed structure, porosity, casting feed, casting modes, gas turbine units
Abstract

In cast blades made of heat-resistant nickel alloys with an equiaxed structure for gas turbine units and engines, one of the main defects is shrinkage porosity, which is a stress concentrator, and reduces the properties of the material and the reliability of the blades. In the second part, the results of testing modern methods for minimizing porosity in the manufacture of large-sized blades of gas turbine units at the leading engine-building enterprises of the industry are presented.

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