Failure analysis of the pure zirconium hanging sample for acetic anhydride reactor

摘要：

The pure zirconium hanging sample for acetic anhydride reactor in a chemical plant reveals weight reduction during operation and dark red appearance on the surface. The authors analyze the corrosion reasons by naked eye macroscopic and optical microscopic/scanning electron microscopic observation, metallographic examination, and energy spectrum analysis. The results show that there are many particles and inclusions in the pure zirconium hanging sample which result in the pitting corrosion around them. In the areas which the inclusions are relatively concentrated, the pitting corrosion develops constantly to form large holes and pits, resulting in weight reduction.

关键词： Acetic anhydride reactor Zirconium Pitting corrosion Particle and inclusion

作者: Pengfei Wang Weiqiang Wang Jie Tang Feng Chang Xiandong Shang

作者单位: School of Mechanical Engineering, Shandong University, Jinan 250061, China;Engineering and Technology Research Center for Special Equipment Safety of Shandong Province, Jinan 250061, China;Research Center of Safety Guarantee and Assessment to Special Equipment, Shandong University; Jinan 250061, China

会议类型: 国际会议

会议名称: 2012 International Symposium on Structural Integrity 2012国际结构完整性学术研讨会 ISSI 2012

会议地点: 济南

会议语种:英文

页码: 219-222

在线出版日期: 2012-10-31（万方平台首次上网日期，不代表论文的发表时间）