本文主要介绍X射线元素面分布数字图像的功能以及数字图像方法在石油裂化装置中不锈钢管失效分析方面的应用。前言随着现代科学技术的发展,对于材料的微区分析已经不只限于对微观结构的细节形貌进行研究,常常要求得到结构变化与材料的化学组分之间的相互关系。元素的面分布就是上述分析任务之一。长期以来,人们都 This paper introduces the function of X-ray surface distribution digital image and the application of digital image method in failure analysis of stainless steel pipe in petroleum cracking unit. Preface With the development of modern science and technology, the micro-area analysis of the material has not been limited to the study of the microstructure’s topography. It is often required to obtain the relationship between the structural change and the chemical composition of the material. The surface distribution of elements is one of the above analysis tasks. For a long time, people are