Faculty of Mechanical Engineering, Lj. (FSLJ)
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Lasersko pretaljevanje in navarjanje izločevalno utrjevalnega jekla = [Laser remelting and surfacing of precipitation hardened steel] : doktorsko deloSlabe, Janez MarkoV doktorskem delu so predstavljeni rezultati raziskave laserskega (reparaturnega) pretaljevanja vzorcev z ozko zarezo (razpoko) iz izločevalno utrjevalnega maraging jekla 1.2799 za delo v vročem in ... rezultati laserskega (reparaturnega) navarjanja vzorcev iz maraging jekla 1.2799 z Ni-Co-Mo zlitino sorodne kemijske sestave. Izkazalo se je, da je z laserskim pretaljevanjem mogoče zelo uspešno odpraviti ozke in relativno globoke razpoke v površinskem sloju in da lasersko navarjanje omogoča natančen nanos majhnega volumna materiala z enako kemijsko sestavo na izbrano mesto na površini. Tako lasersko pretaljene sledi na mestu predhodne zareze kot tudi lasersko navarjeni sloji in okoliški osnovni materiali ne vključujejo lunkerjev, por, vključkov in mikro razpok, kar potrjuje odlično varivost maraging jekla pri uporabi laserja in zagotavlja visoko kakovost reparature. Zaostale napetosti so po izvedbi obeh laserskih obdelav tako z vidika poteka napetosti od površine v globino kot tudi višine ugodne. V lasersko navarjenem sloju so tlačne, kar preprečuje tvorjenje in širjenje povšinskih mikrorazpok. Raznolikost mikrostrukture, ki je prisotna po izvedbi obeh laserskih obdelav, smo uspešno odpravili s topilnim žarjenjem. Želeno mikrotrdoto smo nato dosegli z naknadnim izločevalnim žarjenjem.Type of material - dissertationPublication and manufacture - Ljubljana : [J. M. Slabe], 2005Language - slovenianCOBISS.SI-ID - 8068379
Author
Slabe, Janez Marko
Other authors
Grum, Janez, 1946-
Topics
lasersko pretaljevanje |
lasersko navarjanje |
reparaturno varjenje |
maraging jekla |
Ni-Co-Mo zlitine |
orodja za tlačno litje |
laser surfacing |
laser remelting |
repair welding |
maraging steels |
Ni-Co-Mo alloys |
die casting tools
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Dr SLABE J. M. Lasersko IN: 00050746 Dr SLABE J. M. Lasersko IN: 00050746 |
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Slabe, Janez Marko | 21350 |
Grum, Janez, 1946- | 03551 |
Source: Personal bibliographies
and: SICRIS
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