Abstract��The optical microscope and scanning electron microscope were used to analyze the causes of nonconformity in ultrasonic flaw detection for welding seam of hot rolled steel plates. The result of the metallographic analysis and energy spectrum analysis showed that the main reason of the unqualified was the slag inclusions in the welding seam, which were the welding slag caused by the wrong back gouging.
��Ƽ������ǿ���ƺ���. �����庸�쳬����̽�˲��ϸ�ԭ�����[J]. �й������ڿ���, 2011, 29(6): 32-34.
ZHANG Ping,SUN Yi-qiang,HUANG Hai-e. Causes Analysis of Nonconformity in Ultrasonic Flaw Detection for Welding Seam of Hot Rolled Steel Plates. Chinese Journal of Iron and Steel, 2011, 29(6): 32-34.
2011, Vol. 29 
