Abstract：The defect-incentive of medium plate by ultrasonic inspection were investigated through the analysis of tension fracture、macrographic、metallographic、SEM、energy spectrum and ultrasonic thickness measurement. Research the macro and micro character of the defect-intensive;and comparison tests were done between qualified and unqualified specimen and samples before and after heat treatment.The results showed that defect-intensive in steel plate were mainly caused by wide and dense pearlite and bainite band in the center of steel plate. The qualified percent can be improved through heat treatment.
王树国. 中厚板探伤密集形缺陷的成因分析及解决办法[J]. 中国冶金, 2010, 20(1): 13-13.
ZHOU Min Shu-guo WANG. The Reason and Solution of Defect-intensive of Medium Plate by Ultrasonic Inspection. China Metallurgy, 2010, 20(1): 13-13.
