Realistic microstructural morphology-based Representative Volume Elements for modeling the mechanical response of multi-phase steels

多相钢因其重量轻、屈服强度高而被广泛应用于汽车结构中。后者是由于硬马氏体和较软的铁素体或贝氏体组织之间的相互作用。高强度可以通过设计两相之间的尺寸、分布和间距来实现。以这种方式定制微结构目前是通过试错法实现的。我们建议开发一种方法来开发微观结构的数学模型，以便可以使用计算机模拟来分析强度。使用目前可用的微观结构，我们建议开发一个工作流程，用于数字化的微观结构和导入到一个商业软件中的数学模型，其中它可以受到变形，让人想起的力量，钢将在制造过程中经历。前述内容是用于工程化双相钢的微观结构的有力工具。

Multi-phase steels are widely used in automotive structures owing to their low weight and high yield strength. The latter is on account of the interplay between the hard Martensite and softer ferrite or Baininte structures. High strength can be achieved by engineering the size, distribution and spacing between the two phases. Tailoring the microstructure in this fashion is currently achieved by trial-and-error. We propose to develop a way to develop a mathematical model of the microstructure so that the strength can be analyzed using computer simulations. Using currently available microstructures, we propose to develop a workflow for digitizing the microstructure and importing the mathematical model into a commercial software wherein it can be subjected to deformation reminiscent of forces the steel will experience during manufacturing. The foregoing is a powerful tool for engineering the microstructure of dual-phase steels.