Development of an acoustic measurement methodology for the determination of microstructural damage (T12#)

为了能够局部和非破坏性地检测由板材大块金属成形过程引起的微观结构中孔隙形式的韧性损伤，将在该转移项目中开发新的测试方法。为此目的，将进行超声波测量的材料状态与已知的韧性损伤量化扫描电子显微镜。测量结果将被分配到微观结构中的缺陷。最后，所获得的知识将被转移到扩展的测量技术，如相控阵技术，以减少测量时间，同时能够分析具有复杂几何形状的部件。

In order to be able to locally and non-destructively detect the ductile damage in the form of pores in the microstructure caused by sheet bulk metal forming processes, new testing methods will be developed in this transfer project. For this purpose, ultrasonic measurements will be carried out on material states with known ductile damage quantified by scanning electron microscopy. The measurement results will be assigned to the defects in the microstructure. Finally, the knowledge gained will be transferred to an extended measuring technique such as the phased-array technique in order to reduce measuring times and at the same time to be able to analyze components with complicated geometries.