Essays about: "CALPHAD"

Showing result 1 - 5 of 12 essays containing the word CALPHAD.

1. 1. Modelling study of Ti64 and Ti6242 as a first approach to understand their additive manufacturing behaviors

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Clara De Monte; [2023]
   Keywords : Titanium alloy; CALPHAD; Additive manufacturing;

   Abstract : Aerospace and aeronautics industries push forward the research to improve constantly the quality, safety, and cost of flights. The main ways of improving products are to create lighter and better components, under a highly controlled processing from the research and development to the production at a big scale. READ MORE

3. 2. Thermodynamic modelling of the copper-zinc-tin ternary system : A study towards lead-free brass

   University essay from KTH/Materialvetenskap

   Author : Caterina Radogna; [2023]
   Keywords : Brass-based alloys; Lead-free brass; Calphad; Thermo-Calc; Thermodynamic description; Mässingsbaserade legeringar; Blyfri mässing; Calphad; Thermo-Calc; Termodynamisk beskrivning;

   Abstract : Lead (Pb) is frequently used as an alloying element in brass to enhance machinability and castability. However, this element poses a significant risk to human health and the environment. The 2021 revision of the Drinking Water Directive imposed stricter limits on Pb content in brass, encouraging the development of lead-free brass. READ MORE

4. 3. Ab inito calculation of the formation energy of the sigma phases at 1000 Kelvin : With a five sublattice model for the ternary Iron-Chromium-Nickel system

   University essay from KTH/Materialvetenskap

   Author : Fabian Mathias Veid; [2022]
   Keywords : ;

   Abstract : This project investigates the σ-phase formation energy at 1000 Kelvin using Exact Muffin TIn Orbital (EMTO) method and considers the disordered local moment approach to handle the paramagnetism in a self-consistent manner. The sigma phase is detrimental and causes embrittlement when it occurs primarily in stainless steel and superalloys with Iron (Fe) and Chromium (Cr), which is why it is necessary to understand it better and therefore avoid it. READ MORE

5. 4. Combined CALPHAD and Machine Learning for Property Modelling

   University essay from KTH/Materialvetenskap

   Author : Kyle Paulus; [2020]
   Keywords : ;

   Abstract : Techniques to improve the speed at which materials are researched and developed has been conducted by investigating the machine learning methodology. These techniques offer solutions to connect the length scales of material prop- erties from atomistic and chemical features using materials databases generated from collected data. READ MORE

6. 5. Calphad data handling for generic precipitation modelling coupled with FEM

   University essay from KTH/Materialvetenskap

   Author : Hans-Henrik König; [2020]
   Keywords : CALPHAD; Precipitation; Pycalphad; CuCo; Integrated Computational Materials Engineering; CALPHAD; Utskiljningskinetik; Pycalphad; CuCo; Integrated Computational Materials Engineering;

   Abstract : To enable a generic modelling tool for precipitation kinetics in non-homogeneous components, an efficient data-handling is required to facilitate the integration of models on different length scales, and to decrease the computational time and the use of resources. In this work an automated method to generate, curate and transform Calphad- based thermodynamic and kinetic data to facilitate precipitation models integrated in FEM codes is developed and tested. READ MORE