PM_Ti_02: Alloy Strength for Ti-O
The Alloy Strength - Ti Property Model, available with the Property Model Calculator and the Titanium Model Library, calculates the strength and hardness for Ti-base alloys.
For more information about the Property Model, see About the Alloy Strength - Ti Property Model and Alloy Strength - Ti Property Model Settings.
This example uses the Alloy Strength - Ti Property Model to determine the total hardness of a Ti-0.04Fe-0.03C-0.005N-0.01O alloy.
A One Axis calculation is done using the latest version of the TCTI database to compare the total hardness vs oxygen content (in mole %). Two Experimental File Readers provide the data from [1950Fin] and [1973Oka] for comparison with the calculated values.
As is clearly illustrated in this example, the effect of typical impurity elements on the strength and hardness of Ti is very large. It is therefore important to keep in mind that the impurity elements and their respective contents should be included in the calculation, either explicitly, as is done in this example, or by selecting an appropriate base grade with a pre-defined impurity content for the calculation.
Project File and License Information
- Folder: Property Models → Titanium
- File name:
PM_Ti_02_Alloy_Strength_Ti-O.tcu
To run calculations with the Titanium Models requires a valid maintenance license plus a license for the TCTI (version 6 and newer) database. For some Property Models, additional recommendations for the database version to use is indicated in its description. Also see our website to learn more about the Titanium Model Library.
Visualizations
Many of our Graphical Mode examples have video tutorials, which you can access in a variety of ways. When in Thermo‑Calc, from the menu select Help → Video Tutorials, or from the main My Project window, click Video Tutorials. Alternately, you can go to the website or our YouTube channel.
Open the example project file to review the node setup on the Project window and the associated settings on the Configuration window for each node. For some types of projects, you can also adjust settings on the Plot Renderer Configuration window to preview results before performing the simulation. Click Perform Tree to generate plots and tables to see the results on the Visualizations window.
When you run (Perform) this example, it takes a few minutes for the calculations to complete.
![The total hardness vs O (in mole %) is shown with data from [1950Fin] and [1973Oka].](../../resources/images/propmodels/ti-examples/pm_ti_02_hardnesso.png "The total hardness vs O (in mole %) is shown with data from [1950Fin] and [1973Oka].")
Figure 1: The total hardness vs O (in mole %) is shown with data from [1950Fin] and [1973Oka].
References
[1950Fin] W. L. Finlay, J. A. Snyder, Effects of three interstitial solutes (nitrogen, oxygen, and carbon) on the mechanical properties of high-purity, alpha titanium. JOM. 2, 277–286 (1950).
[1973Oka] K. Okazaki, H. Conrad, Effects of interstitial content and grain size on the strength of titanium at low temperatures. Acta Metall. 21, 1117–1129 (1973).