FactSage

Including extra data points in FactSage figures

A customer has asked me: “How can I include an experimental point on a figure generated in FactSage ?”. The procedure is relatively simple. Suppose that you have generated a curve in FactSage like the one below. Representing the Molar Gibbs Energy of the Gamma phase in the Fe-C system at 1000°C as a function …

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What is the difference between Fact Pure Substances and SGPS databases?

I have been asked by a potential customer: “Do I need the Fact Pure Substances or SGTE Pure Substances database?” The answer is: It depends. The two databases are both collections of (normally published) thermochemical data. The Fact Pure Substances database FactPS is maintained by our co-developer of FactSage, Thermfact/CRCT, Polytechnique Montreal. It is generally …

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Example for a FactSage calculation of a non-equilibrium process

It is a common misconception that thermodynamic calculations can only be used for processes that are in equilibrium. In fact, there is a lot to learn from an Integrated Thermodynamic Databank System like FactSage even if you are far away from equilibrium! As example we consider the popular Fe-C system: If you choose all phases …

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A hands-on example for a phase-diagram-module calculation

FactSage contains many modules. The major ones for daily work are Equilib and Phase Diagram. Phase Diagram permits the calculation of phase diagram sections for systems with any number of components. Components can be elements, compounds or even arbitrary compositions. For a phase diagram calculation, first the components of interest have to be defined. Then, the possible …

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A hands-on example for an equilibrium-module calculation

FactSage contains many modules. The major ones for daily work are Equilib and Phase Diagram. In the Equilib module, global Gibbs energy minimization is used to determine the equilibrium state of a complex chemical system defined by its chemical composition, temperature and pressure. Equilib is easy to use: First, the chemical system has to be defined …

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Applications of FactSage in the Energy Research

In the scope of a preparation work for a project proposal, a literature research was conducted on the applications of FactSage in the areas of combustion and gasification of fossil and renewable carbon-containing raw materials. The research included not only the important coal- and biomass-based fuels, but also all kinds of carbon-containing industrial and domestic …

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Casting Case Study: Refractory-melt interactions

In the scope of the collaborative research center SFB 761, von Schweinichen(*) experimentally investigated the chemical interactions between a high manganese steel melt and different refractory materials employed in assembling an adequate casting system. Normally, when casting in an open atmosphere, one expects worse results considering cleanliness for a top pouring process (Figure 1) than …

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Training Course FactSage for Pyrometallurgy

The date of the open FactSage Training Course on pyrometallurgical applications is fixed! On 11th and 12th of October Prof. Klaus Hack will teach how to use FactSage in the hot part of metallurgical plants. The 11th of Ocotober will cover the basics behind FactSage while the 12th of October is devoted to real application …

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Understanding Solidification in Selective Laser Melting

Additive manufacturing is definetely a “hot topic” these days. And it is not only hot because of the extreme temperatures needed for processes like Selective Laser Melting (SLM) of molybdenum alloys! SLM of molybdenum alloys deserves attention because it combines a manufacturing process of the future with a material system that has the potential to …

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