Thermodynamic Database

Components (19)

A total of 19 components are included in the database as listed here:

Major alloy elements: Cu, Cr, Fe, Mn, Ni, Pb, Si, Sn, Zn

Minor alloy elements: Al, B, Bi, C, P, S, Sb, Se, Ti, and Zr

Suggested Composition Range

The suggested composition range for each element is listed in Table 1. It should be noted that this given composition range is rather conservative. It is derived from the chemistries of the multicomponent commercial alloys that have been used to validate the current database. In the subsystems, many of these elements can be applied to a much wider composition range. In fact, some subsystems are valid in the entire composition range as given in Section Key Elements and Subsystems.

Table 1:  Suggested composition range
Elements Composition Range (wt.%)

Cu

50 ~ 100

Zn

0 ~ 45

Ni

0 ~ 35

Sn

0 ~ 14

Cr, Fe, Mn

0 ~ 10

Pb, Si

0 ~ 5

Al, Sb

0 ~ 3

Bi, P, Se, Zr

0 ~ 2

B, C, S, Ti

0 ~ 0.5

Phases

A total of 330 phases are included in the database and a few key phases are listed in Table 2. Information on all the other phases may be displayed through TDB viewer of Pandat™.

Table 2:  Phase name and related information

Name

Lattice Size

Constituent

Ag5Zn8

(0.667)(0.333)

(Al)(Al,Cu)

AlCu_Delta

(0.4)(0.6)

(Al)(Cu)

AlCu_Eps1

(0.4)(0.6)

(Al,Cu)(Al,Cu)

AlCu_Eps2

(0.5)(0.5)

(Al,Cu)(Cu)

AlCu_Eta

(0.5)(0.5)

(Al,Cu)(Cu)

AlCu_Zeta

(0.45)(0.55)

(Al)(Cu)

Bcc

(1)(3)

(Al,B,Bi,Cr,Cu,Fe,Mn,Ni,P,Pb,Si,Sn,Ti,Zn)(C,Va)

Cu4Ti

(0.8)(0.2)

(Cu,Ti)(Cu,Ti)

Cu4Ti3

(0.571)(0.429)

(Cu)(Ti)

Cu56Si11

(0.835821)(0.164179)

(Cu,Zn)(Si)

CuInSn_Eta

(0.545)(0.122)(0.333)

(Cu)(Cu,Sn)(Sn)

Fcc

(1)(1)

(Al,B,Bi,Cr,Cu,Fe,Mn,Ni,P,Pb,Si,Sn,Ti,Zn)(C,Va)

Gammabrass

(1)

(Al,Cu,Fe,Ni,Si,Zn)

Hcp

(1)(0.5)

(Al,B,Bi,Cr,Cu,Fe,Mn,Ni,Pb,Si,Sn,Ti,Zn)

(C,Va)

Laves_C15

(2)(1)

(Cr,Cu,Fe,Ni,Ti)(Cr,Cu,Fe,Ni,Ti)

Laves_C36

(2)(1)

(Cu,Ni,Ti)(Cu,Ni,Ti)

Liquid

(1)

(Al,B,Bi,Bi2Se3,C,Cr,CrSe,Cu,Cu2Se,

Fe,FeSe,Mn,Ni,P,Pb,Se,MnSe,PbSe,

Si,Sn,SeNi,SeSn,Se2Si,SeZn,Ti,Zn)

Key Elements and Subsystems

Key elements of the system are listed as: Cu-Cr-Fe-Mn-Ni-Pb-Si-Sn-Zn. The modeling status for all the constituent binaries and key ternaries are given in The color represents the following meaning:

  : Full description
  : Full description for major phases
  : Extrapolation
Table 3:  Modeling status of constituent binary systems
Table 4:  Modeling status of constituent ternary systems

Database Validation

Figure 1:  Calculated isothermal section diagrams of the Fe-Cu-Cr system at (a) 1273K, (b) 1373K, and (c) 1573K with the experimental data [1997Oht, 2002Wan]

Figure 2:  Calculated isothermal section diagrams of the Fe-Cu-Si system at (a) 1173K, (b) 1573K, and (c) 1723K with the experimental data [1997Oht, 1999Him, 2002Wan]

[1997Oht] H. Ohtani, H. Suda, K. Ishida, ISIJ International, 37 (1997): 207-216.

[1999Him] M. Hino, T. Nagasaka, and T. Washizu, J. Phase Equilibria, 20 (1999): 179-186.

[2002Wan] C.P. Wang, X.J. Liu, I. Ohnuma, R. Kainuma, K. Ishida, J. Phase Equilibria, 23 (2002): 236-245.