Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Ján Kepič"'
Publikováno v:
Advances in Materials Science and Engineering, Vol 2018 (2018)
Phase compositions of B-Fe-Mn-V alloys were studied by several experimental methods (DTA measurement, X-ray diffractions, and scanning electron microscopy). Besides the experimental study of the quaternary system, thermodynamic modelling of the terna
Externí odkaz:
https://doaj.org/article/14b97ae6d5f94d7dbffbb82f13f0ce21
Publikováno v:
Acta Metallurgica Slovaca, Vol 23, Iss 2 (2017)
Ultrafine grained materials are capable of superplastic elongation at strain rates faster than those currently employed for commercial superplastic forming operations. However, such operations require the material in the form of thin sheets. Asymmetr
Externí odkaz:
https://doaj.org/article/436ef87faf94434bb699f0bb9a19ea8e
Publikováno v:
Metals, Vol 9, Iss 10, p 1058 (2019)
Similitude theory helps engineers and scientists to accurately predict the behaviors of real systems through the application of scaling laws to the experimental results of a scale model related to the real system by similarity conditions. The theory
Externí odkaz:
https://doaj.org/article/c348b62778fd4f08809e326b67bceede
Publikováno v:
Metals, Vol 8, Iss 4, p 242 (2018)
The decrease of emissions from vehicle operation is connected mainly to the reduction of the car’s body weight. The high strength and good formability of the dual phase steel grades predetermine these to be used in the structural parts of the car
Externí odkaz:
https://doaj.org/article/24fbd90700174aa59f267bde4506b8d1
Autor:
Ján Kepič, Zdenek Storkan, Dominika Lehocka, Josef Foldyna, Jiri Klich, Frantisek Botko, Vladimir Simkulet, Michal Hatala, Lucie Krejčí
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 103:1647-1656
Presented article is focused on the comparison of erosion efficiency on the surface treatment of ultrasonically enhanced PWJ (pulsating water jet) on different metal materials surfaces. Surfaces of EN X5CrNi18-10 stainless steel and EN-AW 6060 alumin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f82f48049074682f606943b6941d9569
https://doi.org/10.1007/s00170-019-03680-8
https://doi.org/10.1007/s00170-019-03680-8
Publikováno v:
Journal of Phase Equilibria and Diffusion. 40:79-85
An experimental study of the phase equilibria of the B-Cr-Fe ternary system at 873 K by means of x-ray diffraction and scanning electron microscopy has been carried out. Iron and chromium solid solutions, six chromium borides Cr2B, Cr5B3, CrB, Cr3B4,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63ad83e6c876e319a2659bf24028abdf
https://doi.org/10.1007/s11669-018-0701-9
https://doi.org/10.1007/s11669-018-0701-9
Effect of the Ultrasonically Enhanced Water Jet on Copper Surface Topography at a Low Traverse Speed
Autor:
Jiří Klich, Ján Kepič, Michal Hatala, Dominika Lehocká, Vladimir Simkulet, Karol Kovaľ, Frantisek Botko, Zuzana Mitaľová
Publikováno v:
Lecture Notes in Mechanical Engineering ISBN: 9783030534905
The article describes the maximum erosion efficiency of an acoustically enhanced pulsating water jet on CW004A copper surface. The copper surface was disintegrated at a traverse speed v = 0.1 mm.s−1, water pressure of 39 MPa and circular nozzle dia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49ae483e6af3b92ac4ec5345335dc6fd
https://doi.org/10.1007/978-3-030-53491-2_14
https://doi.org/10.1007/978-3-030-53491-2_14
Publikováno v:
METAL 2020 Conference Proeedings.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::946e0bb81cae3a1448a820c968668e4b
https://doi.org/10.37904/metal.2020.3546
https://doi.org/10.37904/metal.2020.3546
Autor:
Jiří Klich, Ján Kepič, Karol Kovaľ, Zdenek Storkan, Dominika Lehocká, Sergej Hloch, Josef Foldyna, Lucie Krejčí, Frantisek Botko
Publikováno v:
The International Journal of Advanced Manufacturing Technology. 97:1099-1112
The present study is focused on the disintegration effect of ultrasound-enhanced pulsating water jet (PWJ) technology on brass CW614N. The first part of the study discusses the effect of a combination of factors based on the full factorial design of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b3f4beaa497287fb1acc2b9895c1e8d
https://doi.org/10.1007/s00170-018-1882-4
https://doi.org/10.1007/s00170-018-1882-4
Publikováno v:
Journal of Materials Research. 31:1532-1543
Cross-weld hardness profile, notch-tensile strength, and impact toughness of T92 steel heat-affected zone (T92 HAZ) of dissimilar T92/TP316H welds were studied in dependence of their postweld heat treatment (PWHT) and subsequent long-term aging. Two
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::85802ea4b94684e1a512882c91d10fc9
https://doi.org/10.1557/jmr.2016.134
https://doi.org/10.1557/jmr.2016.134