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Title:Vpliv gradnje večvarkovnega zvara na žilavost
Authors:Rojko, Danilo (Author)
Gliha, Vladimir (Author)
Inštitut za kovinske materiale in tehnologije (Authorship owner)
Files:.pdf Materiali_in_tehnologije_2002_Rojko,_Gliha_Vpliv_gradnje_vecvarkovnega_zvara_na_zilavost.pdf (185,63 KB)
MD5: 4FE64668130DF2525E4A5AD590D45E04
 
URL http://mit.imt.si/Revija/izvodi/mit025/rojko.pdf
 
Language:Slovenian
Work type:Scientific work (r2)
Typology:1.04 - Professional Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:V pričujočem delu smo z uporabo simulatorja termičnega cikla SMITWELD analizirali vpliv termičnega varilnega cikla na nastanek mikrostruktur v varu in njihovo udarno žilavost. S simulatorjem termičnega varilnega cikla je mogoče enostavno reproducirati mikrostrukture toplotno vplivanega področja (TVP) in materiala vara, pa tudi izločilne pojave, ki so posledica delovanja termičnega cikla. V ta namen smo uporabili kot osnovo varek-izhodni material, ki je bil izdelan z varjenjem pod praškom (EPP), na katerega smo aplicirali nadaljnje termične cikle z različnimi maksimalnimi temperaturami. Tako smo v laboratorijskih razmerah simulirali izoblikovanje mikrostruktur ter vpliv termičnega cikla na udarno žilavost in nastanek lokalno krhkih področij (LKP).
Keywords:zvarni spoji, mehanska heterogenosti, termično varilni cikel, udarna žilavost, krhka področja
Year of publishing:2002
Number of pages:str. 255-258
Numbering:št. 5, Letn. 36
ISSN:1580-2949
UDC:621.791.052:539.55
ISSN on article:1580-2949
COBISS_ID:7511574 New window
NUK URN:URN:SI:UM:DK:7I4UYYGE
Views:1506
Downloads:90
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Record is a part of a journal

Title:Materiali in tehnologije
Shortened title:Mater. tehnol.
Publisher:Inštitut za kovinske materiale in tehnologije
ISSN:1580-2949
COBISS.SI-ID:106193664 New window

Secondary language

Language:English
Title:Effect of multi-pass weld bulid-up on weld-metal toughness
Abstract:The influence of a weld's thermal cycle on the microstructures and the impact toughness of the weld metal are experimentally analysed. For this purpose we used the SMITWELD simulator for the thermal cycle. With a simulator for the thermal cycle it is possible to simply reproduce the microstructures of a heat-affected zone and the microstructures of the weld metal. Also, it is possible to simulate the segregation proces as part of the weld's thermal cycle. For this purpose a different thermal cycle with a different peak temperature on a real single-pass weld joint produced by submerged arc welding was used. With this experimental work the simulation of the effect of weld build-up on the weld-metal toughness and the formation of a local brittle zone in laboratory conditions was performed.
Keywords:welded joints, mechanical heterogeneity, weld thermal cycle, impact toughness, brittle zones


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