Minor Alloying Elements

Al-Cr

Many minor alloying elements and related systems are modeled in the TCS Al-based Alloy Database (TCAL). Cr is one of them. In the first place, and in order to reliably predict the formation of relevant compounds, the solubility of these elements in the melt and the (Al) solid solution must be well modeled.

Calculated Al-rich Al-Cr binary phase diagram.

Figure 1: Calculated Al-rich Al-Cr binary phase diagram with experimental data.

Al-Sn-Zn

Sn is an important minor alloying element in aluminum alloys. Many Sn-containing systems have been assessed since TCS Al-based Alloy Database version 5 (TCAL5).

Liquidus surface projection with isotherms.

Figure 2: Al-Sn-Zn liquidus surface projection with isotherms [2017Che].

Reference

[2017Che] H.-L. Chen, Thermodynamic modeling of the Al-Sn-X (X = Cd, Cu, In, Si, Zn) ternary systems (Stockholm, Sweden, 2017), unpublished work.