Nicholas Grundy's Top Thermo-Calc Tips for Perfect Simulations - Part 1

In this episode I invited myself to a crash course in Thermo-Calc simulation software, as I wanted to learn more about the possibilities and the restrictions you meet when using it on everyday metallurgy.
Nicholas Grundy from ‪@ThermoCalcSoftware‬ accepted the challenge and only needed a few input for his preparation. But there were a lot of things I did not tell him, as we wanted the episode to be surprising - not only for the audience but also for ourself.
This is part 1 out of 2. In the first part we focus on a very high alloyed tool steel in its liquid phase, where thermodynamics are very close to equilibrium. We are simulating on an alloy with the following chemical composition:
2,8% Carbon
7,0% Chromium
2,3% Molybdenum
9,0% Vanadium
0,7% Manganese
0,8% Silicon

Focus in this case is the formation and control of solidus and liquidus of the alloys as function of protection atmosphere.

Chapters:

0:00 Introduction
01:03 The challenge to a Thermo-Calc crash course
02:17 Introduction to expert Nicholas Grundy
04:15 What it a thermodynamic simulation tool doing?
09:28 First simulation test on a high alloyed tool steel with 9% vanadium
20:10 First plot showing phases as function of temperature between 700 and 1600 degree C
23:55 Adding nitrogen atmosphere to the melt and the effect on the formation of primary carbides
35:00 Amazing high MCN phase increasing liquidus from 1320 to 1520 degree C due to nitrogen atmosphere
38:18 Outro and appetizer for part 2 on the crash course on Thermo-Calc looking into a precipitation hardened steel.