Improvement of Hydrogen-Resistant Gas Turbine Engine Blades: Single-Crystal Superalloy Manufacturing Technology-Reference-Cited by-同舟云学术

Improvement of Hydrogen-Resistant Gas Turbine Engine Blades: Single-Crystal Superalloy Manufacturing Technology

Published:2024-08-28 Issue:17 Volume:17 Page:4265
ISSN:1996-1944
Container-title:Materials
language:en
Short-container-title:Materials

Author:

Balitskii Alexander I.¹²^ORCID,Kvasnytska Yulia H.³,Ivaskevych Ljubomyr M.¹^ORCID,Kvasnytska Katrine H.³^ORCID,Balitskii Olexiy A.⁴^ORCID,Miskiewicz Radoslaw M.⁵^ORCID,Noha Volodymyr O.³,Parkhomchuk Zhanna V.³^ORCID,Veis Valentyn I.³^ORCID,Dowejko Jakub Maciej⁵^ORCID

Affiliation:

1. Department of Strength of the Materials and Structures in Hydrogen-Containing Environments, Karpenko Physico-Mechanical Institute, National Academy of Sciences of Ukraine, 79-601 Lviv, Ukraine

2. Department of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, 70-310 Szczecin, Poland

3. Department of Physico-Chemistry of Casting Processes, Physico-Technological Institute of Metals and Alloys NAS of Ukraine, 03-142 Kyiv, Ukraine

4. Department of Chemistry, University of Waterloo, Waterloo, ON N2L 3G1, Canada

5. Research Center for Management of Energy Sector, Institute of Management, University of Szczecin, 71-004 Szczecin, Poland

Abstract

This paper presents the results of an analysis of resistance to hydrogen embrittlement and offers solutions and technologies for manufacturing castings of components for critical applications, such as blades for gas turbine engines (GTEs). The values of the technological parameters for directional crystallization (DC) are determined, allowing the production of castings with a regular dendritic structure of the crystallization front in the range of 10 to 12 mm/min and a temperature gradient at the crystallization front in the range of 165–175 °C/cm. The technological process of making GTE blades has been improved by using a scheme for obtaining disposable models of complex profile castings with the use of 3D printing for the manufacture of ceramic molds. The ceramic mold is obtained through an environmentally friendly technology using water-based binders. Short-term tensile testing of the samples in gaseous hydrogen revealed high hydrogen resistance of the CM-88 alloy produced by directed crystallization technology: the relative elongation in hydrogen at a pressure of 30 MPa increased from 2% for the commercial alloy to 8% for the experimental single-crystal alloy.

Funder

The Polish National Agency for Academic Exchange (NAWA) and the Ministry of Education and Science of Ukraine

Publisher

MDPI AG

Link

https://www.mdpi.com/1996-1944/17/17/4265/pdf

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