摘要
为了分析锅炉水冷壁存在的高温腐蚀问题,利用高温气氛炉试验台进行了锅炉水冷壁材料20 g的高温氧化试验,采用热分析动力学的方法对试验的数据进行处理和分析,求得了在810～920 ℃纯空气条件下20 g的氧化活化能和指前因子;利用配有能谱分析仪的扫描电镜对氧化产物的结构和元素组成等进行了分析,得出了20 g氧化过程中的平均的氧化速度.
To analyze the high-temperature corrosion problem in boiler water-walls, high-temperature oxidation tests were conducted of boiler water-wall material 20 g on a high-temperature atmosphere test rig. By using the dynamics method of thermal analysis the test data were processed and analyzed. As a result, the oxidation activation energy and a pre-exponential factor were obtained under the condition of pure air at 810-920°C. An analysis was conducted of the shape and element composition, etc of the oxidation products by employing a scanning electronic microscope equipped with an energy spectrum analyzer and the average oxidation speed of 20 g in the oxidation process obtained.
出处
《热能动力工程》
EI
CAS
CSCD
北大核心
2005年第4期397-401,共5页
Journal of Engineering for Thermal Energy and Power
关键词
材料20g
高温氧化
热分析动力学
高温腐蚀
material 20 g, high-temperature oxidation, dynamics of thermal analysis, high-temperature corrosion
