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Transverzalne zaostale napetosti v različnih zvarih visoko-trdnostnih raznorodnih aluminijevih zlitin : zaključna naloga Razvojno raziskovalnega programa I. stopnje StrojništvoNose, SimonAluminijeve zlitine se pogosto uporabljajo v zahtevnih inženirskih aplikacijah, saj jih odlikuje dobra korozijska odpornost ter mehanske in materialne lastnosti. Razvoj novih tehnologij varjenja je ... omogočil tudi spajanje različnih visoko-trdnostnih aluminijevih zlitin med seboj, ki so izredno težko varive s konvencionalnimi postopki varjenja. Nove tehnologije pa nam odpirajo možnosti najrazličnejših raziskav vpliva varjenja na mehanske lastnosti zvarnih spojev. V zaključni nalogi smo zato analizirali transverzalne zaostale napetosti v spojih raznorodnih visoko-trdnostnih aluminijevih zlitin 2017A-T451 in 7075-T651. Analiza je bila opravljena na šestih vzorčnih spojih, ki so bili varjeni z metodo varjenja z gnetenjem z različnimi varilnimi pogoji. Na zvarih smo v prečni smeri glede na potek varjenja izbrali merilna mesta in nato v teh točkah z metodo rentgenske difrakcije izmerili zaostale napetosti. Na podlagi rezultatov meritev smo prikazali grafe porazdelitve zaostalih napetosti. Pokazali smo, da so v poprečju višje pozitivne oz. natezne zaostale napetosti na napredni strani zvarnega spoja. Ugotovili smo tudi, da so največja odstopanja zaostalih napetosti prisotna na nazadujoči strani zvarov, pri čemer smo najvišje vrednosti tlačnih zaostalih napetosti v iznosu 76,48 +/- 22,46 MPa izmerili pri vzorcu 3 (ONP: 20 vrt/cm).Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Ljubljana : [S. Nose], 2019Language - slovenianCOBISS.SI-ID - 16941595
Author
Nose, Simon
Other authors
Trdan, Uroš |
Klobčar, Damjan
Topics
diplomske naloge |
aluminijeve zlitine |
varjenje z gnetenjem |
zvarni spoji |
zaostale napetosti |
metoda rentgenske difrakcije |
aluminium alloys |
friction stir welding |
material welding |
residual stress |
x-ray difraction
Library/institution |
City | Acronym | For loan | Other holdings |
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Faculty of Mechanical Engineering, Ljubljana | Ljubljana | FSLJ |
reading room 1 cop.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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DRS, in which the journal is indexed
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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Nose, Simon | |
Trdan, Uroš | 28906 |
Klobčar, Damjan | 20441 |
Source: Personal bibliographies
and: SICRIS
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