In this paper,failed components of PTA oxidation equipments were examined by using optical microscopy,scanning electron microscopy and EDS analysis et al.

• 采用光学显微镜、扫描电镜和EDS等技术对PTA装置氧化设备腐蚀失效构件的金相组织、化学成分、腐蚀形貌和腐蚀产物进行了研究和分析.