About the SGTE Solutions Database (SSOL9)

The SSOL9 SGTE Solutions Database is a thermodynamic database which contains critical assessments for many binary and ternary, and some higher order systems.

This general alloy solutions database is designed for various applications related to alloy design, coatings, joining, heat treatment and inorganic materials. As many as 79 elements have been included in this database.

The current version of the database is SSOL9. See the link for any subversion release details: SSOL: SGTE Solutions Database Revision History.

Go to the General Alloys and Pure Substances page on our website where you can access PDFs of the SGTE technical information documents and learn about the compatible kinetic database.

Included Elements (79)

Ag	Al	Am	As	Au	B	Ba	Be	Bi	C
Ca	Cd	Ce	Co	Cr	Cs	Cu	Dy	Er	Eu
Fe	Ga	Gd	Ge	H	Hf	Hg	Ho	In	Ir
K	La	Li	Lu	Mg	Mn	Mo	N	Na	Nb
Nd	Ni	Np	O	Os	P	Pa	Pb	Pd	Pr
Pt	Pu	Rb	Re	Rh	Ru	S	Sb	Sc	Se
Si	Sm	Sn	Sr	Ta	Tb	Tc	Te	Th	Ti
Tl	Tm	U	V	W	Y	Yb	Zn	Zr

Developed using the CALPHAD approach, SSOL9 is based on the critical evaluation of binary, ternary and in some cases higher order systems. A total of 1053 critically assessed systems (879 binary, 154 ternary, 19 quaternary and 1 quinary) are included in the SSOL9 database in this 79 element framework. The complete list of all these critically assessed systems is given in the next section of this document. The ASSESSED_SYSTEMS command is in the database for all the assessed systems, which enables you to calculate phase diagrams of these systems using the BINARY and TERNARY modules in Console Mode.

A large number of phases (2352), including various multicomponent solution phases and many important intermetallic compounds, are included in SSOL9. The complete list of the phases and their models are attached at the end of this document. It should be noted that the GAS phase is rejected by default in the database and one should restore it if it is relevant to a calculation.

Order-disorder models, which describe a pair of ordered and disordered phases with a single Gibbs energy function, are able to able to describe a possible 2nd-order transition between the pair of phases and are used in some systems. Examples of this are the BCC_A2/ BCC_B2 transition in the Al-Fe system and the FCC_A1/ FCC_L12 transition in the Al-Ni system.

Some B2-type phases are modeled as stoichiometric phases and a separate phase name (B2_BCC) is created in addition to the BCC_B2 phase in the order-disorder model.

The SSOL9 database enables predictions (such as multicomponent phase equilibria and Scheil solidification simulations of industrial alloys) to be made for multicomponent systems and alloys of industrial importance. This means that the SSOL9 database may be utilized to extrapolate to higher-order systems by combining several critically assessed systems. However, such extrapolations require experiences in CALPHAD and a good understanding of the involved systems. And the producer or vendor should be contacted if problems occur.