Sökning: "CALPHAD"
Visar resultat 16 - 20 av 43 avhandlingar innehållade ordet CALPHAD.
16. Studies of Steel/Slag Equilibria using Computational Thermodynamics
Sammanfattning : The main focus in the present work concerns calculations on steel/slag equilibria. Thermodynamic software and databases are now powerful and accurate enough to give reliable results when applied to complex metallurgical processes. One example is the decarburization process of high alloyed steels. LÄS MER
17. Multicomponent diffusional reactions in tool steels : Experiment and Theory
Sammanfattning : Many phenomena determining the microstructure of a tool steel and consequently the properties of the material, are governed by multicomponent diffusion. The diffusion driven reactions that take place during, for example, tempering of a hot-work tool steel or when the microstructure develops during hot isostatic pressing of cold-work tool steel, are dependent on the types and amounts of alloying elements. LÄS MER
18. Applicationof first-principles calculations in the CALPHAD method
Sammanfattning : .... LÄS MER
19. Thermodynamic Investigation of Co-Cr Alloys
Sammanfattning : In a collaborative effort between the Divison of Metallurgyand the Divison of Computational Thermodynamics, RoyalInstitute of Technology (KTH), Stockholm, Sweden, experimentalinvestigations have been carried out in the binary Co-Crsystem. The experimental strategy has been to measure thethermodynamic activities of Cr by the solid oxide electrolytegalvanic cell technique, as well as to measure the molar heatcapacities of the alloys, as function of temperature, by theDSC technique. LÄS MER
20. Some applications of CALPHAD techniques to diffusion reactions in gradient materials
Sammanfattning : In gradient materials, i.e. materials that have varyingproperties due to an inhomogeneous chemical composition, thereis usually a strong driving force for diffusion reactions inthe gradient zone. Such reactions may have a strong influenceon the properties of the material. LÄS MER