Zobrazeno 1 - 10
of 184
pro vyhledávání: '"Sergej Hloch"'
Autor:
Sergej Hloch, Jakub Poloprudský, Filip Šiška, Tomáš Babinský, Akash Nag, Alice Chlupová, Tomáš Kruml
Publikováno v:
Engineering Science and Technology, an International Journal, Vol 50, Iss , Pp 101630- (2024)
Erosion of solids by liquid droplets is a phenomenon which is a compromise between mechanical properties of the material and droplet hydrodynamic parameters. While a number of studies deal with the deformation of drops, the deformation evolution insi
Externí odkaz:
https://doaj.org/article/b758e994366a40c3a66fe0f7f379ffc8
Publikováno v:
Engineering Science and Technology, an International Journal, Vol 47, Iss , Pp 101558- (2023)
Surfaces created by the erosive action of water droplets have not been sufficiently explored because of their stochastic structure, which depends on hydraulic parameters. This article details the complex analysis of surfaces created by the controlled
Externí odkaz:
https://doaj.org/article/3a065ca9b9374611a7f2d8a79b547598
Autor:
Akash Nag, Madhulika Srivastava, Jana Petrů, Petra Váňová, Ashish Kumar Srivastava, Sergej Hloch
Publikováno v:
Materials, Vol 16, Iss 9, p 3558 (2023)
More efficient ways to process materials are constantly being sought, even in the case of continuous water flow technology, which acts on materials mainly by stagnant pressure. An alternative method is an ultrasound-stimulated pulsating water jet, th
Externí odkaz:
https://doaj.org/article/095af126d000421c934cfdf1d42ab2dc
Publikováno v:
Materials, Vol 15, Iss 13, p 4378 (2022)
Maraging steel is one of the exotic materials showing the potential for application in the field of the aerospace industry. However, machining these materials with high surface quality and material removal rate is problematic. The micro-electro chemi
Externí odkaz:
https://doaj.org/article/7c22763377cd427ab27403f226e3c5b6
Autor:
Sergej Hloch, Madhulika Srivastava, Jolanta B. Krolczyk, Somnath Chattopadhyaya, Dominika Lehocká, Vladimír Simkulet, Grzegorz M. Krolczyk
Publikováno v:
Tehnički Vjesnik, Vol 25, Iss 4, Pp 1075-1079 (2018)
The article deals with the measurement of micro-hardness of the track by the action of ultrasonic excitation of pulsating water jet. The cumulative effect of liquid matter in the form of droplets concentrated in waveform measurements was provided in
Externí odkaz:
https://doaj.org/article/da151a226181431c885a4e5ad6ee8898
Publikováno v:
Materials, Vol 14, Iss 20, p 6019 (2021)
Peening techniques are nowadays attracting more research attention due to their association with the extending of the service life and improving surface texture of engineering components. Ultrasonic pulsating water jet peening represents a new way of
Externí odkaz:
https://doaj.org/article/041af619ed52434ebafa6628add84c30
Publikováno v:
Materials, Vol 14, Iss 18, p 5212 (2021)
This article deals with the effect of periodically acting liquid droplets on the polished surfaces of AISI 316L stainless steel and Ti6Al4V titanium alloy. These materials were exposed to a pulsating water jet produced using an ultrasonic sonotrode w
Externí odkaz:
https://doaj.org/article/6c4920073fc84ac6b99ab2d752a084e5
Autor:
Kumari Bimla Mardi, Amit Rai Dixit, Alokesh Pramanik, Pavol Hvizdos, Ashis Mallick, Akash Nag, Sergej Hloch
Publikováno v:
Materials, Vol 14, Iss 19, p 5471 (2021)
This study investigated the effect of abrasive water jet kinematic parameters, such as jet traverse speed and water pressure, on the surface of magnesium-based metal matrix nanocomposites (Mg-MMNCs) reinforced with 50 nm (average particle size) Al2O3
Externí odkaz:
https://doaj.org/article/19fdbf5eeb8341bd978e04f0c2d72095
Publikováno v:
Tehnički Vjesnik, Vol 24, Iss 1, Pp 15-19 (2017)
The present work aims at obtaining parametric combination to achieve the best surface finish and assess effects of selected process parameters on a laser cut quality for laser cutting. This helps to study the variation in response parameter (Ra value
Externí odkaz:
https://doaj.org/article/dc6824c81b7e47a1887ecc3434437bf3
Autor:
Madhulika Srivastava, Akash Nag, Lucie Krejčí, Jana Petrů, Somnath Chattopadhyaya, Sergej Hloch
Publikováno v:
Materials, Vol 14, Iss 1, p 210 (2021)
This study compared the effect of the interaction time of periodic water clusters on the surface integrity of AISI 304 tungsten inert gas (TIG) welded joints at different excitation frequencies, as the effect of the technological parameters of pulsat
Externí odkaz:
https://doaj.org/article/c7f5d216718d44cc9082bb24e14a50d1