Analysis of Pressing Cracking of S25073 Dual Phase Steel Head
To find out the failure cause of cracking of the head of the intermediate pressure resolver during hot forming and pressing,the head was tested and analyzed for crack morphology,crack fracture and metallographic structure.The results indicate that the failure nature of head cracking is due to insufficient cooling rate after high temperature forming,prolonged residence time between 600 and 1000 ℃,and excessive precipitation,resulting in a decrease in performance.The head cracking occurs during hot forming.Based on the actual situation on site,improvement measures were proposed to avoid similar failure accidents.
NETL
NSTL
万方数据
维普
