Št. zadetkov: 28
Pregledni znanstveni članek
Oznake:
solidification;hot-britleness;hot-shortness;segregation;precipitation;residuals;selective oxidation;grain-boundary penetration;hot-cracks;
The formation of cracks in steels with a solidification microstructure is connected with either the precipitation and segregation of residual elements during solidification and/or with the accumulation of some residual elements at the scale-metal interface during the soaking of the blocks. Hot-britt ...
Leto:
2010
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
Ni alloy;solidification structure;segregation intensity;fracture surface;
The investigation was carried out on samples cut from 20-kg as-cast ingots of a Ni alloy. The as-cast microstructures were examined, the intensity of the segregations were determined, and the fracture surfaces of the specimens, cooled in liquid nitrogen, were examined. It was found that with slow so ...
Leto:
2006
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
jeklo;kovinski prah;vodna atomizacija;
Leto:
1991
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
testasto stanje;globuliti;dendriti;kali;postopek rheo-light;
Leto:
2006
Vir:
dLib.si Digitalna knjižnica Slovenije
Strokovni članek
Oznake:
stainless steel;SEM;cathodic protection;chlorination;pitting corrosion;crevice corrosion;
Equipment made from austenitic stainless steel corroded already after six months of the operation of an indoor marine-water basin. Two super chlorinations were performed during this period. Corroded stainless-steel components and different fastening components were investigated to detect the corrosi ...
Leto:
2012
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
reakcijska termosinteza;Ni-;Ti-aluminidi;ionsko nitriranje;nitridi;trde plasti;XPS;
Visoka trdota in nizek koeficient trenja sta ključna parametra pri modernih nanosih in nanokompozitnih tankih plasteh za zmanjšanje obrabe. Kompleksni nitridi intermetalnih zlitin na osnovi titana, aluminija, niklja in železa so obetajoči materiali za visokozmogljive nanose. Preizkušeno je bilo ions ...
Leto:
2003
Vir:
dLib.si Digitalna knjižnica Slovenije
Strokovni članek
Oznake:
podevtektski silumin;"rheocasting";makro- in mikrostruktura;interval strjevanja;toplotna obdelava;trdota;
Leto:
2002
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
metalografija;zlitine;preiskava materiala;vodna atomizacija;nikljeve zlitine;Nimonic 80A;
Izvršeni so bili preizkusi vodne atomizacije nikljeve superzlitine Nimonic 80A. Opredeljene so mikrostrukturne značilnosti, določena vsebnost kisika v delcih in z linijsko mikroanalizo izmerjene spremembe v koncentraciji Ti, Al, Ni in Cr, v odvisnosti od tlaka razpršilne vode in velikosti zrn prahu. ...
Leto:
1992
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
stainless steel;nitriding;pulsed plasma;biomedical applications;
A use could be found for pulsed-plasma nitrided AISI 316L stainless steel in a wide range of biomedical applications, e.g. femoral and biarticular heads of joint prostheses. Forged samples of steel were pulsed-plasma nitrided at a temperature of 540°C for 24 hours to increase the hardness of the sur ...
Leto:
1995
Vir:
dLib.si Digitalna knjižnica Slovenije
Strokovni članek
Oznake:
steel chips;magnetic separation;cold compaction;remelting;
The recycling of waste metallic materials and the use of scrap are important for the economic production of a steelworks. Here, we investigate the technology of remelting steel chips. It was confirmed that the main problems with using chips in an electric arc furnace were the chips' large specific s ...
Leto:
2010
Vir:
dLib.si Digitalna knjižnica Slovenije