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Приказ резултата 61-70 од 150
The effect of annealing temperatures and cooling rates on microstructure and mechanical properties of investment cast Ti-6Al-4V alloy
(Elsevier Sci Ltd, Oxford, 2006)
Production of investment castings of titanium alloys was considerably increased during last years due to the significant cost savings compared to complicated machined parts. However, the disadvantage of as-cast titanium ...
Thermohydraulic experimental design for the European Helium-Cooled-Pebble-Bed Test Blanket Module
(Elsevier Science Sa, Lausanne, 2008)
The peculiarities of the coolant flow in Helium-Cooled-Pebble-Bed Test Blanket Module (TBM) are (i) very intensive heating of the first wall from the plasma side and (ii) very complicated geometry of How domain consisting ...
Carbon dioxide as the replacement for synthetic refrigerants in mobile air conditioning
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2008)
Based on Kyoto Protocol and the decisions of European Commission R134a refrigerant, currently, dominant , used in mobile air conditioning systems, needs to be phased-out. At present automotive,e industry, looks at carbon ...
Design update, thermal and fluid dynamic analyses of the EU-HCPB TBM in vertical arrangement
(Elsevier Science Sa, Lausanne, 2009)
In the frame of the activities of the EU Breeder Blanket Programme and of the Test Blanket Working Group of ITER, the Helium Cooled Pebble Bed Test Blanket Module (HCPB TBM) is developed in Forschungszentrum Karlsruhe (FZK) ...
Informacijski sistem pasoš zavarivača / Welders passport information system
(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2008)
Projekt EUREKA E!2774 'Pasoš zavarivača' je uključio veći broj institucija iz više zemalja Evrope. U pitanju je kompjuterski informacijski sistem koji omogućava praćenje rada zavarivača od početka njegove obuke preko ...
Micromechanical estimates of the critical values of j-integral for the steel of steam pipelines
(Springer, New York, 2009)
We analyze the level of damage to 14MoV63 steel for steam pipelines under the conditions of crack-growth initiation according to the mechanism of ductile fracture. The state of the material after service for about 100,000 ...
Transition temperature and fracture mode of as-castand austempered ductile iron
(Wiley, Hoboken, 2008)
The ductile to brittle transition temperature is a very important criterion that is used for selection of materials in some applications, especially in low-temperature conditions. For that reason, in this paper transition ...
Uticaj ekvivalentnog sadržaja kiseonika u mešavini gasova na strukturu i žilavost metala šava mikrolegiranih čelika / The influence of the oxygen equivalent in a gas-mixture on the structure and toughness of microalloyed steel weldments
(Srpsko hemijsko društvo, Beograd, 2006)
Ispitivanja su izvedena na dva čelika. Prvi je mikrolegiran sa Nb, a drugi sa: Ti, Nb i V. Žilavost metala šava navedenih čelika je određena na instrumentiranom Šarpijevom klatnu. Pet različitih mešavina gasova (Ar, CO2, ...
Integritet kotlova izloženih vodoničnom oštećenju / Intergrity of boilers exposed to hydrogen damage
(Institut za ispitivanje materijala, Beograd, 2007)
Vodonična oštećenja metala, kao opšti pojam, podrazumevaju mehanička oštećenja, degradaciju mehaničkih svojstava i mikrostrukturne promene izazvane prisustvom i efektima vodonika u metalu, najčešće uz istovremeno dejstvo ...
Analiza otpornosti ka lomu ZUT-a u zavarenim spojevima mikrolegiranih čelika povećane čvrstoće / Analysis of the HAZ fracture resistance of HSLA steel weldments
(DUZS - Društvo za unapređivanje zavarivanja u Srbiji, Beograd, 2009)
Ispitivane su karakteristike otpornosti ka lomu u ZUT zavarenog spoja mikrolegiranog čelika povećane čvrstoće koji se koristi za izradu posuda pod pritiskom. S obzirom na namenu zavareni spoj treba da ima veliku otpornost ...