Št. zadetkov: 300
Izvirni znanstveni članek
Oznake:
metalurgija;zlitina Cu-Zr;notranja oksidacija;hitro strjevanje;
Kombinacija hitrega strjevanja in notranje oksidacije je obetaven postopek za izdelavo disperzijsko utrjenih bakrovih zlitin z drobno disperzijo visootemperaturno stabilnih oksidnih delcev legirnih elementov, katerih topnost v bakru je zanemarljivo majhna. Ker zmanjšamo z uporabo hitrega strjevanja ...
Leto:
1997
Vir:
Fakulteta za strojništvo (UM FS)
Izvirni znanstveni članek
Oznake:
Z oksidnimi delci disperzijsko utrjene bakrove zlitine se odlikujejo s kombinacijo dobre električne in toplotne prevodnosti, izboljšanimi mehanskimi lastnostmi in povečano stabilnostjo mikrostrukture pri povišanih temperaturah. Te zlitine so danes največkrat izdelane s postopkom notranje oksidacije ...
Leto:
1996
Vir:
Fakulteta za strojništvo (UM FS)
Strokovni članek
Oznake:
Leto:
1997
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
hitro strjevanje;mikrostruktura;trakovi;Cu - Zr zlitina;
Hitro strjene trakove zlitin Cu -0,5% Zr in Cu - 1% Zr smo izdelali s postopkom litja taline na hitro se vrteči boben pri različnih procesnih parametrih. Mikrostrukturo trakov smo raziskali v odvisnosti od debeline oziroma povprečne ohlajevalne hitrosti in od sestave zlitin. V prečnem prerezuje mikr ...
Leto:
1995
Vir:
Fakulteta za strojništvo (UM FS)
Kratki znanstveni prispevek
Oznake:
internal oxidation;internal oxidation zone;composite;copper;silver;diffusion;kinetics;
The internal oxidation in copper-carbon and silver-carbon composites occurs when they are exposed to air or oxygen at high temperature. Solubility of carbon in copper or in silver is very low. The kinetics of oxidation at high temperature and activation energy were determined and the mechanism of in ...
Leto:
2008
Vir:
Fakulteta za strojništvo (UM FS)
Izvirni znanstveni članek
Oznake:
notranja oksidacija;srebro;zlitine;sestavljanje;drobci;internal oxidation;silver;alloys;compound;particle;
Silver alloys with tellurium, selenium and sulphur fulfil the conditions for the internal oxidation. Microstructure of these alloys consists of matrix (dilute solid solution) and particles of intermetallic compounds. Internal oxidation of ternary alloys is very similar to that of the binary alloys, ...
Leto:
2005
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)
Kratki znanstveni prispevek
Oznake:
two-phase metal materials;modelling;plastic deformation;fracture;kinematics model;
Deformation and fracture of multi-phase metal materials are two very important problems in the material science and mechanical engineering. This article presents macroscopic models of two-phase metal materials, composed of ductile metal matrix and more rigid secondary-phase inserts. The components p ...
Leto:
2001
Vir:
Repozitorij Univerze v Ljubljani (RUL)
Izvirni znanstveni članek
Oznake:
metalurgija;hitro strjena zlitina Al-Fe in Cu-Fe;transformacije;električna upornost;diferencijalna skening kalorimetrija;rapidly solidified Al-Fe alloy;rapidly solidified Cu-Fe alloy;transformations;electrical resistance;differential scanning calorimetry;
For the characterization of the phase transformations in the alloys during the heat treatment the various methods of the thermal analyses are available. Thermogravimetry, differential thermal analysis (DTA) and the differential scanning calorimetry (DSC) are the most frequently used methods. The pha ...
Leto:
2006
Vir:
Digitalna knjižnica Univerze v Mariboru (DKUM)
Strokovni članek
Oznake:
structural steel;heavy plates;reduction of area;eutectic niobium carbo-nitride;
During a routine control, a very small through thickness reduction of area was found for one tensile specimen of a 90-mm plate. Careful investigations of the fracture and the section of specimens cut from the as-solidified continuously cast 250-mm slab showed that the cause was the presence of coars ...
Leto:
2008
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
eksplozijsko varjenje;metalurgija;plošče;kompoziti;nizko-ogljično jeklo;titan;talina;metallurgy;explosion welding;plates;composites;low-carbon steel;titanium;melt;vortex;
On the basis of experimentally obtained data, it was established that a very thin layer of a melt is generated at the explosive welding of two metals at the bond interface within which impurities flow at the bond during melting. Rapid cooling after the collision generates an alloy of different struc ...
Leto:
2004
Vir:
Fakulteta za strojništvo (UM FS)