论文部分内容阅读
对屏式过热器管进行了宏观检查、金相显微组织观察和分析以及拉伸性能测试。结果表明,该屏式过热器管失效的主要原因是长时超温与短时超温共同作用的结果。
The screen superheater tube was examined macroscopically, metallographic microstructure observation and analysis, and tensile properties test. The results show that the failure of the screen superheater tube is mainly due to long time over-temperature and short-term over-temperature results.