炉管破裂原因分析  

Cracking Reason Analysis of Boiler Tube

作　　者：王洁[1] 田华[1] 刘桂森[1] 

机构地区：[1]国家金属制品质量监督检验中心,郑州450001

出　　处：《理化检验（物理分册）》2009年第4期240-242,共3页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：采用宏观检验、化学成分分析和金相检验等方法对锅炉管破裂原因进行了分析。结果表明:由于锅炉长期在高温下使用,形成的沿晶碳化物组织削弱了晶界原子间结合力,加速了炉管的内外壁的氧化腐蚀,从而引起其快速破裂。The cracking reason of boiler tube was analyzed by the method of macro fracture, chemical composition and microstructure and so on. The results showed that boiler tube was used for too high temperature in the long time, carbide along grain boundary were formed and weaken interatomic bonding force, oxidation of wall and ektexine of tube were result to crack quickly of boiler tube.

关 键 词：锅炉管 破裂 高温 氧化 

分 类 号：TK223.11[动力工程及工程热物理—动力机械及工程]