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Title Increasing the Structural Strength of Corrosion-resistant Steel for Elastic Components of Diaphragm Compressor
Authors Krmela, J.
Hovorun, Tetiana Pavlivna  
Berladir, Khrystyna Volodymyrivna  
Artiukhov, Artem Yevhenovych  
Keywords Corrosion-resistant Steel
Martensitic Transformation
Residual Austenite
Mechanical Properties
Cold Plastic Deformation
Type Article
Date of Issue 2021
URI https://essuir.sumdu.edu.ua/handle/123456789/83776
Publisher Jan Evangelista Purkyne University in Usti nad Labem
License Creative Commons Attribution 4.0 International License
Citation Krmela J, Hovorun T, Berladir K, Artyukhov A. Increasing the Structural Strength of Corrosion-resistant Steel for Elastic Components of Diaphragm Compressor. Manufacturing Technology. 2021;21(2):207-213. doi: 10.21062/mft.2021.034.
Abstract The design features of diaphragm compressors are discussed in this article. For preventing the formation of local stresses in certain areas of the diaphragm, it is recommended to use thin sheet stainless steel of the transition class. A comparative analysis is made of two batches of steel tape, differing in the value of the saturation magnetic induction, which is identical to the content of the martensite phase in the structure of the material before the final cycle of cold plastic deformation. The results of the study of the influence of the deformation temperature (20 – 300 ºС) on the change in mechanical properties (σb, σ0.2, δ) revealed a different tendency to embrittlement of the material of the tapes for these batches. For increasing the operational reliability of the compressor's diaphragm elements, it is recommended to use a material, the structure of which contains a certain amount of work-hardened retained austenite. This makes it possible to undergo additional martensitic transformation under the action of peak loads in local areas and increases the structural strength of corrosion-resistant steel for the manufacture of a compressor diaphragm.
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