Rok 2024

• The degradation mechanisms of a nanobainitic steel under cavitation erosion conditions

  Publikacja

  • A. Krella
  • J. Marcisz
  • M. Buszko
  • D. E. Zakrzewska
  • G. Putynkowski

  - Wear - Rok 2024

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• The Influence of Impact Velocity on Stresses and Failure of S355j2 Steel Under Slurry Erosion Conditions

  Publikacja

  • M. Buszko
  • D. E. Zakrzewska

  - Advances in Science and Technology Research Journal - Rok 2024

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• The Influence of Impact Velocity on Stresses and Failure of S355j2 Steel Under Slurry Erosion Conditions

  Publikacja

  • D. E. Zakrzewska (dawniej: D. Zakrzewska)
  • M. H. Buszko

  - Advances in Science and Technology Research Journal - Rok 2024

  The purpose of this work was to determine the essence of the influence of the impact velocity (5, 7, and 9 m/s) on Hertzian stresses and the erosion mechanism of ferritic-pearlitic S355J2 steel. The investigations were carried out using a slurry pot tester. S355J2 steel showed a strong sensitivity to changes in impact velocity. A significant increase in erosion rate was observed at a velocity of 9 m/s. This increase was 5-fold...

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Rok 2023

• Concept of cavitation erosion assessment of austenitic 1.4301 stainless steel based on roughness development

  Publikacja

  • D. E. Zakrzewska
  • M. Buszko
  • A. Marchewicz
  • A. Krella

  - Tribology International - Rok 2023

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Rok 2021

• Damage Development on the Surface of Nickel Coating in the Initial Period of Erosion

  Publikacja

  • D. E. Zakrzewska (dawniej: D. Zakrzewska)
  • M. Buszko
  • A. Krella
  • A. Komenda
  • G. Mordarski
  • R. P. Socha

  - Materials - Rok 2021

  The common occurrence of the phenomenon of cavitation in many industries and the multitude of factors affecting the resistance to cavitation erosion of used materials contribute to the search for methods and appropriate parameters of coating application that are able to minimize the effects of erosion. To determine the validity of the developed application parameters and the method used, cavitation studies and microscopic observations...

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• Effect of Thermal Treatment and Erosion Aggressiveness on Resistance of S235JR Steel to Cavitation and Slurry

  Publikacja

  • A. Krella
  • D. E. Zakrzewska (dawniej: D. Zakrzewska)
  • M. Buszko
  • A. Marchewicz

  - Materials - Rok 2021

  S235JR steel is used in many applications, but its resistance to the erosion processes has been poorly studied. To investigate this resistance, cavitation, and slurry erosion tests were conducted. These tests were carried out at different erosion intensities, i.e., different flow rates in the cavitation tunnel with a system of barricades and different rotational speeds in the slurry pot. The steel was tested as-received and after...

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Rok 2020

• The resistance of S235JR steel to cavitation erosion

  Publikacja

  • A. Krella
  • D. E. Zakrzewska (dawniej: D. Zakrzewska)
  • A. Marchewicz

  - WEAR - Rok 2020

  The erosion resistance of S235JR steel to flow cavitation was investigated. In order to understand an influence of steel properties and cavitation intensities on the degradation mechanisms, low-carbon S235JR steel was tested in the as-received state and after thermal treatment (annealing) under four different flow velocities. Annealing decreased steel hardness, which made S235JR steel less resistant to cavitation erosion. The performed...

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Rok 2019

• Cavitation Erosion Resistance Influence of Material Properties

  Publikacja

  • D. E. Zakrzewska (dawniej: D. Zakrzewska)
  • A. Krella

  - Advances in Materials Science - Rok 2019

  The cavitation erosion is the phenomena that causes degradation of fluid flow machinery components due to repetitive implosion of cavitation bubbles adjacent to the solid surface. Cavitation erosion is a complex phenomenon, which includes not only hydrodynamic factors of liquid, but also properties of erodible material e.g. microstructure, hardness or Young modulus. In order to reduce the negative impact of erosion on machine components,...

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• Erozja Kawitacyjna Austenitycznej Stali Nierdzewnej 1.4541

  Publikacja

  • D. E. Zakrzewska (dawniej: D. Zakrzewska)
  • A. Krella
  • G. Gajowiec

  - Rok 2019

  Proces erozji kawitacyjnej powoduje niszczenie materiału, na który składają się: odkształcenie plastyczne, ubytki masy, zmiany fazowe, fragmentacja ziaren, zmiany mikrogeometrii i makrogeometrii powierzchni. Różnorodność czynników mająca wpływ na proces niszczenia materiału sprawia, iż trudno jest przewidzieć postęp procesu niszczenia ciała stałego wskutek kawitacji. Z tego względu...

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Rok 2018

• Cavitation Erosion – Phenomenon and Test Rigs

  Publikacja

  • A. Krella
  • D. E. Zakrzewska

  - Advances in Materials Science - Rok 2018

  The cavitation and cavitation erosion phenomenon have been shortly presented. The main four types of test rigs to investigate the cavitation erosion resistance have been shown. Each type of test design is described and an example of a design is shown. A special attention has been payed to the designs described in the International ASTM Standards: a vibratory design and a cavitating jet cell. There was shown that the design of a...

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