摘要
对法兰开裂原因进行分析,对断口的宏观形貌进行观察并对法兰成分、法兰及断口的金相、断口形貌、相成分进行分析。结果显示,由于法兰的化学成分不合格以及焊缝热影响区处于应力集中处造成了法兰的开裂。
The causes of cracking flange were studied by the observation of fracture macroscopic appearance, flange composition analysis, flange and fracture of metallographic test, the fracture scanning electron microscopy and energy spectrum analysis of fracture. The results show that the chemical composition of the flange unqualified and weld heat affected zone in stress concentration place can cause the flange crack.
出处
《热加工工艺》
CSCD
北大核心
2014年第6期215-217,共3页
Hot Working Technology
关键词
法兰
焊缝热影响区
不锈钢敏化
腐蚀失效分析
flange
weld heat affected zone
stainless steel sensitization
corrosion failure analysis
