Hydrogen and Corrosion Resistance of Nickel Superalloys for Gas Turbines, Engines Cooled Blades
Alexander I. Balitskii,
Yuliia H. Kvasnytska,
Lyubomir M. Ivaskevych,
Kateryna H. Kvasnytska,
Olexiy A. Balitskii,
Inna A. Shalevska,
Oleg Y. Shynskii,
Jaroslaw M. Jaworski,
Jakub M. Dowejko
Affiliations
Alexander I. Balitskii
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
Yuliia H. Kvasnytska
Department of Physico-Chemistry of Casting Processes, Physico-Technological Institute of Metals and Alloys NAS of Ukraine, 03-142 Kyiv, Ukraine
Lyubomir M. Ivaskevych
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
Kateryna H. Kvasnytska
Department of Physico-Chemistry of Casting Processes, Physico-Technological Institute of Metals and Alloys NAS of Ukraine, 03-142 Kyiv, Ukraine
Olexiy A. Balitskii
Institute-Materials for Electronics and Energy Technology (i-MEET), Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, Energy Campus Nürnberg, Fürtherstraße 250, 90429 Nürnberg, Germany
Inna A. Shalevska
Department of Physico-Chemistry of Casting Processes, Physico-Technological Institute of Metals and Alloys NAS of Ukraine, 03-142 Kyiv, Ukraine
Oleg Y. Shynskii
Department of Physico-Chemistry of Casting Processes, Physico-Technological Institute of Metals and Alloys NAS of Ukraine, 03-142 Kyiv, Ukraine
Jaroslaw M. Jaworski
Research Center for Management of Energy Sector, Institute of Management, University of Szczecin, Cukrowa Street 8, 71-004 Szczecin, Poland
Jakub M. Dowejko
Research Center for Management of Energy Sector, Institute of Management, University of Szczecin, Cukrowa Street 8, 71-004 Szczecin, Poland
The paper presents the results of the analysis of the resistance to hydrogen and high-temperature salt corrosion of the developed alloy of the CM88Y type for the turbine blades of gas turbine engines for marine and power purposes in comparison with the industrial heat-resistant corrosion-resistant alloy CM88Y and the alloy for the protective coating of the SDP3-A blades. SDP3-A alloy was chosen as a reference sample, which has high hydrogen and corrosion resistance. The new heat-resistant alloy additionally contains such refractory metals as rhenium and tantalum, which are added to the composition of the alloy in order to increase operational characteristics while maintaining phase-structural stability. These are properties such as long-term and fatigue strength, characteristics of plasticity and strength at room and elevated temperatures. Therefore, the purpose of these studies was to determine the resistance to high-temperature salt corrosion of the developed alloy in comparison with the industrial heat-resistant nickel alloy and to evaluate the influence of alloying, hydrogen embrittlement of CM88Y and ZhS3DK alloys with different contents of chromium, boron, zirconium, hafnium, and yttrium were compared. The corrosion resistance of the materials was evaluated after crucible tests in a salt solution at a temperature of 900 °C for 30 h, according to the standard method. The corrosion resistances of alloys were determined by the mass loss, corrosion rate, and data from metallographic studies.
