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Lomna žilavost visokotrdnostnih zvarnih spojev : diplomsko delo visokošolskega strokovnega študijskega programa 1. stopnjeVizlar, BoštjanGlede na varivost poboljšanih visokotrdnostnih malolegiranih konstrukcijskih (VTML) jekel ter predvsem s stališča ekonomičnosti je izvedba zvara z manjšo napetostjo tečenja oziroma z "mehkimi" ... korenskimi sloji (uporaba elektrod z manjšo napetostjo tečenja) zaželena, če lahko dosežemo veliko žilavost zvara, ki ne bo ogrožala varnega obratovanja zvarjenih konstrukcij. V diplomskem delu sem preučeval lomne lastnosti večvarkovnega z manjšo trdnostjo X zvarnega spoja z mehkim korenskim slojem in brez njega. Zvarni spoj je varjen na VTML-jeklu (debeline 30 mm) Niomol 490 in v zaščiteni atmosferi plina (80 % Ar+ 20 % CO2). V primeru X-zvarnega spoja z mehkim korenskim slojem je opazen vpliv mehkega korenskega sloja z najmanjšo trdnostjo na lomno žilavost CTOD celotnega zvarnega spoja, ki se je odražal na začetku krhkega loma v področju zvara z najmanjšo trdnostjo. Namen raziskave je ugotoviti, ali je izbrana tehnologija varjenja za trdnostno manjši zvarni spoj z mehkim korenskim slojem priporočljiva oziroma uporabna za izboljšanje varivosti VTML-jekla Niomol 490 glede na doseženo lomno žilavost zvara oziroma mehkega korenskega sloja.Type of material - undergraduate thesis ; adult, seriousPublication and manufacture - Krško : [B. Vizlar], 2012Language - slovenianCOBISS.SI-ID - 1024105820
Author
Vizlar, Boštjan
Other authors
Praunseis, Zdravko |
Avsec, Jurij
Topics
trdnostna neenakost |
manjša trdnost zvara |
mehki korenski sloj |
lomna žilavost |
CTOD-preizkus |
lokalno krhka področja |
strength mismatching |
under matched welds |
soft root layer |
fracture toughness |
CTOD test |
local brittle zones
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Library/institution |
City | Acronym | For loan | Other holdings |
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Faculty of Energy Technology, Krško | Krško | FEKRS |
reading room 1 cop.
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Year | Impact factor | Edition | Category | Classification | ||||
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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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Vizlar, Boštjan | ![]() |
Praunseis, Zdravko | 08488 |
Avsec, Jurij | 10827 |
Source: Personal bibliographies
and: SICRIS
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