材料塑性成形与热处理一体化工程的理论基础，主要为应力—相变—形变间冶金交互作用和力学交互作用的机制、建模以及组织与性能变化的模拟。以钢为例，介绍了应力下铁素体、珠光体相变的文献工作，并提出0.38C-Cr-Mo钢在应力下铁素体形成和珠光体相变的动力学模型以及组织变化的计算机模拟；讨论了Scheil相加性原则的不足及其修正途径；略述应力对钢中贝氏体相变及马氏体相变的影响；简介相场理论及其应用。对材料在应力下相变理论、建模与组织模拟的后续研究工作提出了展望。

Fundamentals of the unified technology combining plastic forming and heat treatment of materials mainly consist of the metallurgical and mechanical interactions between stress, transformation and deformation, modeling as well as simulations of microstructural and property evolutions. In the present work, taking steel for example, the literatures on ferrite, pearlite, bainite and martensitic transformations under stresses are introduced. Kinetics models and computer simulation of microstructural evolution of ferrite and pearlite transformations under stresses in a 0.38C-Cr-Mo steel are suggested. A discussion is given on deficiency and the modification of Scheil's additivity hypothesis. Phase field theory and its application, as well as the perspective in further study of the unified technology are briefly presented.