Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Petr Kawulok"'
Publikováno v:
Journal of Materials Research and Technology, Vol 14, Iss , Pp 1837-1847 (2021)
In recent years, the study of the hot deformation behavior of various materials is significantly marked by an increasing utilization of artificial neural networks, which are frequently employed for a hot flow curve description. This specific kind of
Externí odkaz:
https://doaj.org/article/40fecdeaa05f49dfb522ba89ff5de722
Publikováno v:
Materials & Design, Vol 220, Iss , Pp 110880- (2022)
In recent years, the utilization of artificial neural networks (ANNs) as regression models to solve the issue of hot flow stress forecasting has become a standard approach. In a connection with this kind of regression issue, employed ANNs are usually
Externí odkaz:
https://doaj.org/article/b433fb03031249c39966967bf713c57f
Autor:
Jitka Malcharcziková, Kateřina Skotnicová, Petr Kawulok, Rostislav Kawulok, Ivo Szurman, Jana Růžička
Publikováno v:
Crystals, Vol 12, Iss 2, p 215 (2022)
Ni-Al-Mo based alloys can be used as materials for high temperature applications. They can be prepared by various techniques such as an electron beam zone melting, which allows us to obtain the alloys with a directionally solidified structure and uni
Externí odkaz:
https://doaj.org/article/53e1b890f6904bb8b72a6b1f400b9a5e
Publikováno v:
Metals, Vol 10, Iss 11, p 1413 (2020)
Description of flow stress evolution, specifically an approximation of a set of flow curves acquired under a wide range of thermomechanical conditions, of various materials is often solved via so-called flow stress models. Some of these models are as
Externí odkaz:
https://doaj.org/article/7dd631f1a340464f9d8269f280d0df69
Autor:
Ivo Schindler, Petr Opěla, Petr Kawulok, Jaroslav Sojka, Kateřina Konečná, Stanislav Rusz, Rostislav Kawulok, Michal Sauer, Petra Turoňová
Publikováno v:
Metals, Vol 10, Iss 9, p 1255 (2020)
The deformation behaviour of a coarse-grained as-cast medium-carbon steel, alloyed with 1.2% Mn, 0.8% Cr and 0.2% Mo, was studied by uniaxial compression tests for the strain rates of 0.02 s−1–20 s−1 in the unusually wide range of temperatures
Externí odkaz:
https://doaj.org/article/d4f698f5d81846079ce4ed6c0f3f2950
Autor:
Rostislav Kawulok, Ivo Schindler, Jaroslav Sojka, Petr Kawulok, Petr Opěla, Lukáš Pindor, Eduard Grycz, Stanislav Rusz, Vojtěch Ševčák
Publikováno v:
Crystals, Vol 10, Iss 4, p 326 (2020)
Based on dilatometric tests, the effect of various values of previous deformation on the kinetics of austenite transformations during the cooling of 100Cr6 steel has been studied. Dilatometric tests have been performed with the use of the optical dil
Externí odkaz:
https://doaj.org/article/0fa8c370ab7f41609d3484d92c298ad9
Autor:
Petr Kawulok, Ivo Schindler, Bedřich Smetana, Ján Moravec, Andrea Mertová, Ľubomíra Drozdová, Rostislav Kawulok, Petr Opěla, Stanislav Rusz
Publikováno v:
Metals, Vol 10, Iss 3, p 399 (2020)
The nil-strength temperature, zero strength temperature and solidus temperature are significant parameters with respect to the processes of melting, casting and welding steels. With the use of physical tests performed on the universal plastometer Gle
Externí odkaz:
https://doaj.org/article/76152a5cc330448ab1ca145b17a434d0
Autor:
Ivo Schindler, Petr Kawulok, Vladivoj Očenášek, Petr Opěla, Rostislav Kawulok, Stanislav Rusz
Publikováno v:
Metals, Vol 9, Iss 12, p 1248 (2019)
Stress-strain curves of the EN AW 6082 aluminium alloy with 1.2 Si-0.51 Mg-0.75 Mn (wt.%) were determined by the uniaxial compression tests at temperatures of 450−550 °C with a strain rate of 0.5−10 s−1. The initial structure state corresponde
Externí odkaz:
https://doaj.org/article/81b6f05b09c643b9bc71b6334c1237ee
Autor:
Stanislav RUSZ, Ivo SCHINDLER, Rostislav TUROŇ, Petra TUROŇOVÁ, Pavel KUKUCZKA, Radek CIESLAR, Petr KAWULOK, Rostislav KAWULOK, Petr OPĚLA, Michal SAUER
Publikováno v:
Journal of Metallic Materials. 74:3-7
The aim of the paper was to determine the temperature dependence of formability of investigated steels by uniaxial tensile fracture tests under thermomechanical conditions corresponding to punching (1340–1395 °C) and pilger rolling (800–1050 °C
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::407de57f3bd7db3e9ff62e8b55937b1f
https://doi.org/10.32730/imz.2657-747.22.2.1
https://doi.org/10.32730/imz.2657-747.22.2.1
Publikováno v:
Journal of Metallic Materials. 74:21-27
The paper deals with the unconventional issue of composite steel preparation by hot rolling. Various production possibilities of multilayer composite from austenitic stainless steel AISI 304 and tool high carbon steel AISI D2 were investigated. Sampl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e64b962cc7200452e0c2042d8d0ae3a0
https://doi.org/10.32730/imz.2657-747.22.1.4
https://doi.org/10.32730/imz.2657-747.22.1.4