Mobility Database

PanCu2024_MB is an atomic mobility database for Cu-based alloys, which is compatible with the MDTCu2024_TH thermodynamic database and suitable for the simulation of diffusion-controlled phenomena using the PanDiffusion module, PanEvolution module, and/or PanSolidification module.

Components (19)

Al	B	Bi	C	Cr	Cu	Fe	Mn	Ni	P
Pb	S	Sb	Se	Si	Sn	Ti	Zn	Zr

Phases

The atomic mobility within the Liquid, Bcc, Fcc, and Hcp solution phases are assessed in this database.

Self-diffusivity of Pure Elements

The color represents the following meaning:

	:	Validated
	:	Estimated
	:	No data

**Table 1:** Assessed self-diffusivity of pure elements with different crystal structures

Assessed Systems

In addition to the assessed self-diffusivities shown above, the impurity diffusion data for all included elements in the current PanCu2024_MB database are also assessed. In the following, the assessed chemical-diffusivity within the binary and ternary systems for the Bcc, and Fcc phases are listed, respectively.

Fcc Phase

Bcc phase

Database Validation

The simulated concentration profiles of a series of Cu-based alloys are used to validate the current mobility database for Cu-based alloys. A few examples of such simulation are shown below.

Figure 1: Concentration profiles of Cu2.9Si-Cu10.8Al (at.%) at 1073K for 48h [2013Liu]

Figure 2: Concentration profiles of Co75Ni-Cu75Ni (at%) at 1273K for 100h [2014Che]

Figure 3: Concentration profiles of Cu-0.16Ni/Fe-0.5Ni (mole fraction) at 1273K for 196h [2011Liu]

[2011Liu] Y. Liu, et al., Atomic mobilities, zero-flux planes and flux reversals in fcc Cu-Fe-Ni alloys. Calphad, 35 (2011): 376-383.

[2013Liu] D. Liu, et al., Ternary diffusion in Cu-rich fcc Cu-Al-Si alloys at 1073 K. Journal of Alloys and Compounds, 566 (2013): 156-163.

[2014Che] J. Chen, et al., Mobilities, diffusivities and kinetic characteristics for fcc Cu-Co-Ni alloys. Calphad, 47 (2014): 123-128.