After ultrasonic inspection of 100mm high-strength steel plate,continuous point-like defects were found between 200-300mm from both sides of the steel plate.After location sampling,metallographic microscope,scanning electron microscope(SEM),energy dispersive spectrometer(EDS)and other means were used for comprehensive analysis,and the results showed that:there are many large size(Ti,Nb)N complex inclusions and serious center segregation of the steel plate.
关键词
高强钢板/探伤不合格/夹杂物/中心偏析
Key words
high strength steel plates/unqualified flaw detection/inclusion/center segregation
维普
万方数据