材料工程Issue(9)：68-71,4.
基于金属磁记忆的热采湿蒸汽发生器炉管缺陷早期检测
Early Fault Inspection of Wet Stream Generator Tubes Based on Metal Magnetic Memory
颜廷俊 1张杰东 1冯国栋 2陈建飞2
作者信息
- 1. 北京化工大学,北京100029
- 2. 中国石化胜利油田技术检测中心,山东东营257062
- 折叠
摘要
Abstract
Tensile test and fatigue test on wet steam generator 20G tubes were carried out and the metal magnetic memory (MMM) signals were detected. Though the analysis of MMM signals from different loading stages and different fatigue cycles, the variation characteristic of the MMM signals was obtained and a novel quantitative evaluation method of the early failure by MMM technology was proposed and applied in oilfield on-site test finally. The test results show that MMM method can effectively locate the stress concentration zone (SCZ). The magnetic gradient indicates the damage severity of the investigated zone of the tube. If the magnetic gradient is above 12A · (m · Mm)-1, the zone interested is damaged seriously.关键词
金属磁记忆/湿蒸汽发生器/应力集中Key words
metal magnetic memory/ wet steam generator/ stress concentration分类
能源科技引用本文复制引用
颜廷俊,张杰东,冯国栋,陈建飞..基于金属磁记忆的热采湿蒸汽发生器炉管缺陷早期检测[J].材料工程,2011,(9):68-71,4.
