A method where a conjugate pair of the driving force (affinity, $D$) and extent of reaction (EOR, $\xi$) are used as axis variables to present non-equilibrium conditions of multiphase systems as Calphadian phase diagrams is introduced. Three examples for various thermochemical systems include a solid state reaction, steel melt solidification and an aqueous sorption-precipitation system. Both equilibrium and non-equilibrium diagrams were produced to study the thermodynamic validity of the suggested technique. The use of $D,\xi$ variables can be applied in typical Gibbs energy minimizing programs and provides additional degrees of freedom in the diagrammatic analysis of various multiphase problems.

一种方法，其中驱动力的共轭对（亲和力， $D$) 和反应程度 (EOR, $\xi$) 用作轴变量来呈现多相系统的非平衡条件，因为引入了 Calphadian 相图。各种热化学系统的三个例子包括固态反应、钢熔体凝固和水吸附-沉淀系统。生成了平衡和非平衡图来研究所建议技术的热力学有效性。指某东西的用途$D,\xi$ 变量可以应用于典型的 Gibbs 能量最小化程序，并在各种多相问题的图解分析中提供额外的自由度。