Petrochemical 304L Stainless Steel Pressure Vessel Corrosion Mechanism Research
This paper selects 304L stainless steel material commonly used in the petrochemical industry as the research object,in the strain rate of 1.5×10-6/s,different corrosive medium NaOH solution concentration and corrosion temperature conditions for the test,observe the change rule of stress corrosion and fracture characteristics.The results show that:under the action of high temperature and high concentration of corrosive media,the corrosion tendency of 304L stainless steel pressure vessel is more obvious,and the fracture characteristics are changed from toughness to brittleness.Therefore,it is necessary to strengthen the corrosion protection and monitoring of 304L stainless steel pressure vessel in practical application to ensure its safe operation.
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