摘要
采用宏微观组织分析、化学成分分析、SEM断口形貌分析、EDS腐蚀产物化学成分分析等手段,分析了321不锈钢釜盖开裂的原因。结果表明,该釜盖的开裂属于氯化物应力腐蚀开裂,蒸压釜的工作介质和工作压力共同导致了釜盖的开裂,并提出了相应的改进措施。
The cracking of autoclave cover was analyzed by morphology and microstructure analysis,SEM micro-morphology of fracture surface,EDS corrosion products analysis.The results show that the cracking of autoclave cover is attributed to stress corrosion cracking.Working stress and working fluid of the autoclave cover lead to the cracking of the autoclave cover jointly.Finally,the relative protection countermeasures are proposed.
出处
《热加工工艺》
CSCD
北大核心
2011年第18期193-194,197,共3页
Hot Working Technology
关键词
321不锈钢
蒸压釜
应力腐蚀开裂
321 stainless steel
autoclave
stress corrosion cracking
