摘要
通过宏观检查、化学成分分析、断口形貌分析、金相检验、室温硬度试验,对锅炉水冷壁泄漏原因进行了分析。结果表明:水冷壁鳍片角焊缝产生的裂纹为穿晶断裂,产生的原因与焊接过程控制不当有关。
The boiler water wall leakage reasons were analyzed by macroscopic, chemical composition, fracture morphology, microstructure, hardness of materials. The results show that the welding crack of water wall fins of fillet is transgranular fracture, the reasons relate to the improper control of welding process.
出处
《铸造技术》
北大核心
2017年第9期2159-2161,共3页
Foundry Technology
关键词
T23
穿晶裂纹
应力
硬度
T23
transcrystalline crack
stresss
hardness
