长期运行后12Cr2Mo钢焊接接头组织性能研究

Study on microstructure and performance of 12Cr2Mo steel welded joint after long-term service

采用化学成分分析、金相试验、力学性能试验和扫描电镜试验等方法,对运行12万h后的12Cr2Mo焊接接头进行组织与性能试验研究,分析其组织和性能变化。

By using chemical composition analysis, microscopic test, mechanical properties, scanning electron microscopy test and other methods, variation of microstructure and performance of 12Cr2Mo steel welded joint after 120 000h long-term service are analyzed.