STUDY ON HIGH TEMPERATURE DAMAGE TO Cr5Mo FURNACE TUBE IN A PETROCHEMICAL PLANT

摘要：

Cr5Mo steel samples from different furnace tubes exposed to high temperature conditions in a petrochemical unit were investigated experimentally and assessed. Tensile test at various temperature were carried out and the fracture morphology of the specimens was analyzed by scanning electron microscopy. Impact and hardness tests were also employed. Microstructures of the specimens were obtained. The experiment results showed that the mechanical properties of Cr5Mo steel were degraded due to the high temperature and the grain size grade of the furnace tube samples were found to be increased. These results indicated that Cr5Mo furnace tube can experience degradation of mechanical properties at high temperature situations, which may cause the decrease of its service life.

作者: GAO Zengliang ZHANG Wei LU Zhiming

作者单位: Institute of Process Equipment and Control Engineering , Zhejiang University of Technology,The MOE Key Laboratory of Mechanical Manufacture and Automation, Hangzhou 310032, China

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）