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Wyszukujesz frazę "Kik, T" wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
Measurements and numerical simulations of laser hardening and remelting thermal cycles
Autorzy:
Kik, T.
Wyględacz, B.
Powiązania:
https://bibliotekanauki.pl/articles/368669.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
hardening
remelting
WCL steel
diode laser
thermal cycle
SYSWELD
numerical simulation
hartowanie
przetapianie
stal WCL
laser diodowy
obieg cieplny
symulacja numeryczna
Opis:
Purpose: of these researches was to investigate the influence of thermal cycles recording conditions and comparing them with the calculated by FEM. This approach allows proposing a new way of determining the technological conditions of the process, based on numerical analyses. Design/methodology/approach: Thermal cycles of high power diode laser hardening and remelting was recorded and calculated by FEM. Results of metallographic examinations were compared with numerical simulations results, as well as the thermographic pictures. Acquisition errors during the thermal cycles were also defined. Findings: Due to the fact that the it was used FEM, comparison of the numerical analyses with real test results was performed for laser hardening and remelting process. Research limitations/implications: For complete information it is needed to collect bigger database of the results and prepare also hardness calculation model for WCL steel. Practical implications: The result of the presented work is to signal a methodology that allows obtaining information on the impact of the parameters of the laser hardening and remelting process on the properties of the treated samples. Not without significance is the fact that the use of FEM eliminates in this case a lot of errors that in real tests can distort the result. Originality/value: The researches were provided for high power diode laser hardening and remelting. The influence of heat input on layers properties and theirs structure was defined. Results were compared with thermographic pictures and calculated cases.
Źródło:
Journal of Achievements in Materials and Manufacturing Engineering; 2019, 96, 2; 69-82
1734-8412
Pojawia się w:
Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical Simulations of X22CrMoV12-1 Steel Multilayer Welding
Autorzy:
Kik, T
Moravec, J.
Novakova, I.
Powiązania:
https://bibliotekanauki.pl/articles/354198.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
numerical simulation
X22CrMoV12-1
welding
SYSWELD
hardness prediction
Opis:
The aim of this paper is to present the procedure test for calibration and validation of the numerical model for X22CrMoV12-1 steel multilayer welding. On the real multilayer weld was described how to arrange the whole experiment in order to obtain not only relevant input data but also verification data. Tests on a specially prepared specimen, welded with 8 beads in 4 layers, allows to determine the actual geometry of the single welded beads, registration of welding thermal cycles and the hardness distribution in successively deposited beads together with determining the heat influence of subsequent layers. The results of the real welding tests were compared with the results obtained from the numerical simulations and extended by the calculated stresses and distortions distributions of the tested specimen. A new, improved hardness prediction algorithm for high-alloy martensitic and bainitic steels was also proposed.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 4; 1441-1448
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical Simulation of Duplex Steel Multipass Welding
Autorzy:
Giętka, T.
Ciechacki, K.
Kik, T.
Powiązania:
https://bibliotekanauki.pl/articles/351268.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
FEM
welding strains
SYSWELD
welding stresses
GMA
duplex steel
Opis:
Analyses based on FEM calculations have significantly changed the possibilities of determining welding strains and stresses at early stages of product design and welding technology development. Such an approach to design enables obtaining significant savings in production preparation and post-weld deformation corrections and is also important for utility properties of welded joints obtained. As a result, it is possible to make changes to a simulated process before introducing them into real production as well as to test various variants of a given solution. Numerical simulations require the combination of problems of thermal, mechanical and metallurgical analysis. The study presented involved the SYSWELD software-based analysis of GMA welded multipass butt joints made of duplex steel sheets. The analysis of the distribution of stresses and displacements were carried out for typical welding procedure as during real welding tests.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 4; 1975-1984
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New distributional data on Bryophytes of Poland, 2
Autorzy:
Gorski, P.
Smoczyk, M.
Pawlikowski, P.
Voncina, G.
Stebel, A.
Paciorek, T.
Staniaszek-Kik, M.
Romanski, M.
Wiaderny, A.
Gabka, M.
Wierzcholska, S.
Powiązania:
https://bibliotekanauki.pl/articles/790587.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
new data
distributional data
bryophyte
locality
Polska
Opis:
This paper presents the macromorphological and micromorphological characteristics of wood barley recorded in the Wielkopolska Lowland. On the basis of the collection of preserved specimens, the micromorphological features were examined under a scanning electron microscope (SEM) to assess their taxonomic value. The principal features include the size and shape of cork/silica cells, crown cells, prickles, macro-hairs and stomata as well as the morphology of long cells in vegetative and reproductive organs.
Źródło:
Steciana; 2015, 19, 2
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contribution to the bryoflora of the Roztocze National Park (SE Poland) - Bryophytes of the Swierszcz river valley
Autorzy:
Fudali, E.
Zubel, R.
Stebel, A.
Rusinska, A.
Gorski, P.
Voncina, G.
Rosadzinski, S.
Cykowska-Marzencka, B.
Stanaszek-Kik, M.
Wierzcholska, S.
Wolski, G.J.
Wojterska, M.
Wilhelm, M.
Paciorek, T.
Piwowarski, B.
Powiązania:
https://bibliotekanauki.pl/articles/790668.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
bryoflora
Roztocze National Park
Polska
bryophyte
Swierszcz River
river valley
mountain species
threatened species
Opis:
New distribution data for 171 bryophyte taxa in the Roztocze National Park are provided. Among them there are 43 species protected by law in Poland, including 20 strictly protected species, as well as 13 species threatened in Poland. The research revealed 36 species (5 liverworts and 31 mosses) new for the region. Noteworthy is the occurrence of 19 mountain species and 10 bryophytes thought to be relicts of old-growth forests what confirms the specificity of nature of the Roztocze region. The most valuable and interesting finds are: mosses Campylophyllopsis sommerfeltii (Myrin) Ochyra, Dicranum viride (Sull. & Lesq.) Lindb., Buxbaumia viridis (Moug. ex Lam. & DC.) Brid. ex Moug. & Nestl. as well as liverworts Calypogeia suecica (Arnell et J. Perss.) Müll. Frib. and Cephalozia catenulata (Huebener) Lindb. A brief characterisations of these species are presented.
Źródło:
Steciana; 2015, 19, 1
1689-653X
Pojawia się w:
Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Contribution to the bryoflora of the Swietokrzyski National Park (Central Poland)
Autorzy:
Stebel, A.
Rosadzinski, S.
Gorski, P.
Fojcik, B.
Rusinska, A.
Voncina, G.
Szczepanski, M.
Wilhelm, M.
Fudali, E.
Paciorek, T.
Staniaszek-Kik, M.
Zubel, R.
Piwowarski, B.
Wolski, G.J.
Salachna, A.
Smolinska, D.
Pierscinska, A.
Powiązania:
https://bibliotekanauki.pl/articles/878494.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
contribution
bryoflora
moss
liverwort
protected species
threatened species
species distribution
Swietokrzyski National Park
Polska
Opis:
New distribution data for 183 species, one subspecies and four varieties of bryophytes in the Świętokrzyski National Park are provided. The most interesting species (rare, protected and new for the area) are Anastrophyllum hellerianum, Buxbaumia viridis, Cephalozia catenulata, Dicranum viride, Lophozia ascendens, Mannia fragrans and Tetraplodon angustatus.
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2013, 17
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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