Iskalni niz:
išči po
išči po
išči po
išči po
Vrsta gradiva:
Jezik:
Št. zadetkov: 7
Segregation and oxidation
Hans Jürgen Grabke
Pregledni znanstveni članek
Oznake: iron;iron alloys;equilibrium segregation;cosegregation;sulphur;segregation on oxides;adhesion of protective coatings;
An introduction will be given in the fundamentals of equilibrium segregation, i.e. the enrichment of atoms or ions from solid solution at surfaces, grain boundaries and interfaces, occuring at elevated temperatures. Some examples of segregation and cosegregation on iron and iron alloys will be descr ...
Leto: 2006 Vir: dLib.si Digitalna knjižnica Slovenije
Supersaturation of iron with nitrogen, hydrogen or carbon and the consequences
Hans Jürgen Grabke
Izvirni znanstveni članek
Oznake: iron;steel;supersaturation;steady state;porosity;blistering;metal dusting;
Reactions leading to supersaturation of iron with nitrogen, hydrogen or carbon are described and some of the consequences of the supersaturation. The formation of the thermodynamically stable state of the elements. N2(gas), H2(gas) and graphite from the supersaturated solid solutions may cause defec ...
Leto: 2004 Vir: dLib.si Digitalna knjižnica Slovenije
Carburization, carbide formation, metal dusting, coking
Hans Jürgen Grabke
Pregledni znanstveni članek
Oznake: carburization;carbon transfer;steels;surface reactions;high temperature corrosion;internal carbide formation;metal dusting;sulfur effect;
Leto: 2002 Vir: dLib.si Digitalna knjižnica Slovenije
Surface and grain boundary segregation of antimony and tin - effects on steel properties
Hans Jürgen Grabke
Izvirni znanstveni članek
Oznake: surface and grain boundary segregation;Fe-Sb alloys;Fe-Sn alloys;Fe-Sb-C alloys;Fe-Sn-C alloys;intergranular fracture embrittlement;
The tramp elements Sb and Sn have a strong tendency to surface segregation on iron. By LEED and AES surface structures and concentrations of Sb and Sn segregated on single crystal were determined. The surface segregation is strongly dependent on orientation, therefore recrystallization of steel shee ...
Leto: 1996 Vir: dLib.si Digitalna knjižnica Slovenije
Effects of impurities in Alloy 800 on the grain boundary diffusion and high temperature creep
Janine Lindemann, K. Hennesen, C. Derder, Helmut Viefhaus, Hans Jürgen Grabke
Izvirni znanstveni članek
Oznake: alloy 800;grain boundary diffusion;solution of Suzuoka;sectioning method;radioactive traces;residual activity;bulk diffusion;phosphorous;phosphides;sulphur;segregation;creep process;creep cavities;minimum creep strain rate;
Industrial Alloy 800 in different specifications and melts of Alloy 800 with addition od P and S were investigated using diffusion, segregation and creep measurements to reveal the influence of the impurities and to find relations between microstructures, creep properties and self-diffusivity. Using ...
Leto: 1998 Vir: dLib.si Digitalna knjižnica Slovenije
Decarburization mechanism of Fe-Si-Al alloy with antimony addition
Vasilij Gontarev, Hans Jürgen Grabke, Darja Steiner Petrovič, Monika Jenko
Izvirni znanstveni članek
Oznake: decarburization;silicon steels;surface oxidation;antimony;
The mechanism of decarburization process of Fe-Si-Al alloy was investigated onsamples of cold rolled sheets; some of them alloyed with 0.048 wt.% Sb. The decarburization was performed in a ▫$H_2H_2O$▫ gas mixture at 840°C. It was influenced by the oxidation of the surface. Antimony influence of on d ...
Leto: 1998 Vir: dLib.si Digitalna knjižnica Slovenije
Some aspects of carbide precipitation and phosphorus grain boundary segregation in Cr-V low alloy steels
Anna Výrostková, Jana Perháčová, Viera Homolová, Peter Ševc, Jozef Janovec, Hans Jürgen Grabke
Izvirni znanstveni članek
Oznake: low alloy steels;carbide precipitation;carbide composition;grain boundaries;phosphorus segregation;
Raziskana je bila segregacija fosforja na kristalnih mejah pri 773 in 853 K pri treh malolegiranih jeklih z nizko vsebnostjo vanadija. Uporabljeni sta bili AES in TEM metodi. Entalpija in entropija segregacije ter fazna ravnotežja so bila termodinamično izračunana. Staranje 1000 ur je bilo zadostno ...
Leto: 1999 Vir: dLib.si Digitalna knjižnica Slovenije
Št. zadetkov: 7
Ključne besede:
Leto izdaje:
Avtorji:
Repozitorij:
Tipologija:
Jezik: