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Št. zadetkov: 35
Surface characterization and pickling characteristics of the oxide scale on duplex stainless steel
Črtomir Donik
Izvirni znanstveni članek
Oznake: duplex stainless steel;pickling;oxide scale;HF;HNO3;
Mixtures of hydrofluoric (HF[sub](aq)) and nitric acids (HNO[sub]3) used for the pickling of stainless steels to remove thick oxide scale generate waste liquids with a high HF concentration. The oxide formation during production annealing and the subsequent pickling response in mixed acids have been ...
Leto: 2011 Vir: dLib.si Digitalna knjižnica Slovenije
Influence of MnS inclusions on the corrosion of austenitic stainless steels
Črtomir Donik, Irena Paulin, Monika Jenko
Izvirni znanstveni članek
Oznake: corrosion;stainless steel;MnS inclusion;electrochemical corrosion tests;ASTM G48;
The influence of alloy sulfur on the crevice solution chemistry and the nature of the surface in the crevice during initiation were investigated. Two austenitic steels with different amounts of sulfur in the alloy, AISI 316L and SS 2343, were compared using electrochemical measurements with an addit ...
Leto: 2010 Vir: dLib.si Digitalna knjižnica Slovenije
The electrochemical study of duplex stainless steel in chloride solutions
Aleksandra Kocijan, Črtomir Donik, Monika Jenko
Izvirni znanstveni članek
Oznake: duplex stainless steel;potentiostatic;cyclic voltammetry;passive films;
The evolution of the passive film formed on duplex stainless steel 2205 in a chloride solution was studied using cyclic voltammetry and potentiodynamic measurements. The anodic peaks in cyclic voltammograms at -0.6 V, 0 V and 1.1 V were identified with the formation of Fe(OH)[sub]2, FeOOH and the tr ...
Leto: 2009 Vir: dLib.si Digitalna knjižnica Slovenije
Laves phase evolution in 10Cr-3W-3Co steel during thermal exposure and creep
Jaromír Dlouhý, Eva Chvostová, Črtomir Donik
Izvirni znanstveni članek
Oznake: creep-resistant steel;laves phase;coarsening;image analysis;
Leto: 2023 Vir: Inštitut za kovinske materiale in tehnologije (IMT)
Content of Cr and Cr (VI) in a welding fume by different Cr content in an experimental coating of a Cr-Ni rutile electrode
Razija Begić, Monika Jenko, Matjaž Godec, Črtomir Donik
Strokovni članek
Oznake: welding fumes;welding electrode;chrom;
In the SMAW welding process welding fumes are generated, harmful to human health and the environment. A welding fume is a mixture of gaseous and solid phases, which are generated during most of the electric-arc-welding processes. This article presents the researches of the particles that constitute ...
Leto: 2012 Vir: dLib.si Digitalna knjižnica Slovenije
The influence of powder selection and process conditions on the characteristics of some oil-retaining sintered bronze bearings
Borivoj Šuštaršič, Matjaž Godec, Aleksandra Kocijan, Črtomir Donik
Izvirni znanstveni članek
Oznake: oil-retaining self-lubricating sintered bronze bearings;chemistry;microstructure and mechanical properties;analysis and comparison;the influence of process conditions;
A chemical, microstructural and mechanical characterisation of sintered bronze bearings from three different producers was performed. The investigated bearings differ considerably in their final functional properties in spite of the fact that they all have similar bulk chemical compositions and a si ...
Leto: 2010 Vir: dLib.si Digitalna knjižnica Slovenije
AES and XPS characterization of titanium hydride powder
Irena Paulin, Djordje Mandrino, Črtomir Donik, Monika Jenko
Izvirni znanstveni članek
Oznake: Augerjeva spektroskopija;rentgenska fotoelektronska spektroskopija;sinteza;titanov hidrid
Titanium hydride powder, manufactured by ball milling titanium in a hydrogen atmosphere down to micron-sized particles, was analyzed by X-ray Photoelectron Spectroscopy (XPS). A strong titanium oxide signal was also measured, which decreased some what after intense sputtering of the sample, but was ...
Leto: 2010 Vir: dLib.si Digitalna knjižnica Slovenije
Possibilities for improvement of mechanical properties of high-strength medium-carbon SiCr steels
Pavel Salvetr, Jakub Kotous, Črtomir Donik, Aleksandr Gokhman, Zbyšek Nový
Izvirni znanstveni članek
Oznake: spring steel;54SiCr6 steel;microstructure;mechanical properties;
Possibilities for improvement of mechanical properties of high-strength medium-carbon SiCr steels
Leto: 2023 Vir: Inštitut za kovinske materiale in tehnologije (IMT)
Improved biodegradability of Fe-Mn alloy after modification of surface chemistry and topography by a laser ablation
Črtomir Donik, Aleksandra Kocijan, Irena Paulin, Matej Hočevar, Peter Gregorčič, Matjaž Godec
Izvirni znanstveni članek
Oznake: Fe-Mn alloy;laser ablation;biodegradability;surface engineering;XPS depth profiles;
Improved biodegradability of Fe-Mn alloy after modification of surface chemistry and topography by a laser ablation
Leto: 2018 Vir: Repozitorij Univerze v Ljubljani (RUL)
Mechanical properties of high carbon low-density steels
Jiri Hajek, Zbyšek Nový, Ludmila Kucerova, Hana Jirková, Črtomir Donik, Zdeňek Jansa
Izvirni znanstveni članek
Oznake: low density steels;heat treatment;tensile test;
Mechanical properties of high carbon low-density steels
Leto: 2023 Vir: Inštitut za kovinske materiale in tehnologije (IMT)
Št. zadetkov: 35
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