Results 181 to 190 of about 1,778 (215)
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The resistance of S235JR steel to cavitation erosion
Wear, 2020Abstract 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.
Alicja K. Krella +2 more
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Wear behavior of ultrasonic impact treated S235JR steel
Materials Testing, 2017Abstract In this study, wear behavior of ultrasonic impact treated S235JR steel was investigated. Samples were peened for different times (5, 15 and 30 minutes) by ultrasonic impact treatment. It was found that triple layers (nanocrystallization, plastic deformation and residual stress) formed on the treated surface. The thickness of the
Kahraman, FATİH +3 more
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Key Engineering Materials, 2014
In the paper low (LCF) and high cycle fatigue (HCF) behavior of the S235JR low alloyed steel after surface frictional-mechanical treatment in a corrosive environment (3.5 % NaCl ) has been presented. The treatment was used in order to improve mechanical and fatigue properties of the steel Obtained research results indicate an insignificant improvement ...
Dorota Kocańda +3 more
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In the paper low (LCF) and high cycle fatigue (HCF) behavior of the S235JR low alloyed steel after surface frictional-mechanical treatment in a corrosive environment (3.5 % NaCl ) has been presented. The treatment was used in order to improve mechanical and fatigue properties of the steel Obtained research results indicate an insignificant improvement ...
Dorota Kocańda +3 more
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Analysis of the Cutting Force With Ultrasonic Assisted Manufacturing of Steel (S235JR)
Volume 2: Advanced Manufacturing, 2017The manufacturing of hard and refractory materials such as ceramics, glass or carbide poses particular challenges on tools and machines. The Sauer Limited a company of the DMG Mori Corporation has developed ultrasonic tool holders working in a frequency range from 15 to 60 kHz.
Philipp Zopf, Franz Haas
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Microstructural failure criteria for S235JR steel subjected to spatial stress states
Archives of Civil and Mechanical Engineering, 2015Abstract The study deals with failure criteria for S235JR steel subjected to spatial stress states. The predictions were made using the modified Gurson–Tvergaard–Needleman (GTN) material model, which takes into account the effect of microstructural damage.
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Construction and Building Materials, 2019
Abstract This paper presents the analysis of the statistical size effect in steel structural elements using the stochastic finite element (FE) method. The three-dimensional random field theory is applied to simulate the uncertainty of a nonlinear material.
Zheng Li, Hartmut Pasternak
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Abstract This paper presents the analysis of the statistical size effect in steel structural elements using the stochastic finite element (FE) method. The three-dimensional random field theory is applied to simulate the uncertainty of a nonlinear material.
Zheng Li, Hartmut Pasternak
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Changes in dislocation substructure of S235JR steel during fatigue loading
2014Changes in dislocation substructure were studied in normalized and annealed S235JR steel in relation to the number of symmetrical reversed stress cycles with the amplitude σa = 242 MPa and corresponding mean life Nf = 17,950 cycles. The microstructure of the steel consisted of ferrite with a small amount of pearlite. The substructure was observed in as
Jandová, D. +3 more
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Applied Mechanics and Materials, 2015
In manufacturing industry there are many applications for the permanent joint of components of different shapes, but they are also very different in terms of chemical composition and structure [1, 2]. This paper is trying to find technological solutions of assembling by welding of two steels with totally different chemical composition, i.e.
Maria Cristina Dijmărescu +4 more
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In manufacturing industry there are many applications for the permanent joint of components of different shapes, but they are also very different in terms of chemical composition and structure [1, 2]. This paper is trying to find technological solutions of assembling by welding of two steels with totally different chemical composition, i.e.
Maria Cristina Dijmărescu +4 more
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Materials Science and Welding Technologies
The article presents the results of physical experiments consisting in the rolling of layered plates (clad plates). The experiments involved two types of two-layered flat bars, i.e. S235JR and X20Cr13 as well as S235JR and X5CrNi18-10. The experiment resulted in the development of a technology for the fabrication of layered flat bars made of structural
Bartłomiej Walnik +4 more
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The article presents the results of physical experiments consisting in the rolling of layered plates (clad plates). The experiments involved two types of two-layered flat bars, i.e. S235JR and X20Cr13 as well as S235JR and X5CrNi18-10. The experiment resulted in the development of a technology for the fabrication of layered flat bars made of structural
Bartłomiej Walnik +4 more
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Solid State Phenomena, 2016
This paper analyzes the changes in the state of stress in the plastically deforming structural steel which are attributable to the evolution of defects in the microstructure of the material. Numerical simulations were conducted to study the behaviour of a structural element under tensile stress using the Gurson-Tvergaard-Needleman material model for ...
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This paper analyzes the changes in the state of stress in the plastically deforming structural steel which are attributable to the evolution of defects in the microstructure of the material. Numerical simulations were conducted to study the behaviour of a structural element under tensile stress using the Gurson-Tvergaard-Needleman material model for ...
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