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Izbira toplotne obdelave ogljikovega in orodnega jekla glede na doseženo mikrostrukturo, mehanske lastnosti in zaostale napetosti : diplomsko delo Visokošolskega strokovnega študijskega programa I. stopnje Strojništvo - Projektno aplikativni programRakar, JakobJekla z določenimi želenimi lastnostmi so lahko draga. Alternativa je nakup cenejšega jekla, ki mu lahko izboljšamo lastnosti s pomočjo toplotne obdelave. S toplotno obdelavo mu lahko do neke mere ... spreminjamo mehanske in fizikalne lastnosti in tako zadostimo našim potrebam. Diplomska naloga obravnava toplotno obdelovanje jekla C45 in jekla 90MnCrV8. Obe jekli smo kalili in gasili v različnih gasilnih sredstvih, nato pa še popuščali pri različnih temperaturah. Toplotni obdelavi je sledila analiza vzorcev, kjer smo pomerili trdoto in zaostale napetosti s pomočjo metode difrakcije X žarkov. Z mikroskopom smo nazadnje analizirali še mikrostrukturo. Ugotovili smo, da je za gašenje določenega jekla pomembna izbira pravilnega kalilnega sredstva, saj s tem dobimo optimalne mehanske lastnosti jekla. Temperatura popuščanja prav tako ni zanemarljiva z vidika mehanskih lastnosti. Kombinacija kaljenja in popuščanja pri ustrezni temperaturi popuščanja lahko proizvede jeklo, ki ima dober kompromis med trdoto in žilavostjo.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [J. Rakar], 2025Language - slovenianCOBISS.SI-ID - 247202307
Author
Rakar, Jakob
Other authors
Kek, Tomaž, 1974- |
Šturm, Roman, 1965-
Topics
diplomske naloge |
toplotna obdelava |
kaljenje |
temperatura popuščanja |
jeklo |
trdota |
zaostale napetosti |
thesis |
heat treatment |
hardening |
tempering temperature |
steel |
hardness |
residual stresses
| Library/institution |
City | Acronym | For loan | Other holdings |
|---|---|---|---|---|
| Faculty of Mechanical Engineering, Ljubljana | Ljubljana | FSLJ |
reading room 1 cop.
|
Shelf entry
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| Year | Impact factor | Edition | Category | Classification | ||||
|---|---|---|---|---|---|---|---|---|
| JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP | |
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DRS, in which the journal is indexed
| Database name | Field | Year |
|---|
| Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
|---|---|
| Rakar, Jakob | ![]() |
| Kek, Tomaž, 1974- | 23778 |
| Šturm, Roman, 1965- | 13026 |
Source: Personal bibliographies
and: SICRIS
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