Study on Ultrasonic Test Defects Causes of Medium Plate


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In this paper,Q345E steel as the object of study,analysis of several typical internal defects of UST to explore the reasons for failure caused by UST testing.The results show that: the center segregation of Mn/S is likely to induce center segregation structure of P+B with a whole cleaning micro-cracks,large size spherical oxide of Si/Ca is an important incentive for causing micro-cracks;Billet board defect detection defect likely to cause an important reason;crack at the alloying elements sharply higher than the matrix composition.Billet defects is an important reason to cause steel surface defects;the alloying elements in place nearing the crack sharply higher than the matrix composition.



Advanced Materials Research (Volumes 194-196)

Edited by:

Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang




Y. L. Chen et al., "Study on Ultrasonic Test Defects Causes of Medium Plate", Advanced Materials Research, Vols. 194-196, pp. 259-262, 2011

Online since:

February 2011




[1] Kelly J E, Michalek K P. Metallurgical Transaction A. Vol. 10 (1988), pp.2589-2602.

[2] Revie R W. Corrosion, Vol. 49 (1993), p.17223.

[3] Taira. Parkins RN. Corrosion, Vol. 3 (1987), pp.130-132.

[4] Wu-Yang Chu. 《Hydrogen damage and delayed fracture》. Beijing: Metallurgical Industry Press, 1988. in chinese.

[5] Fruehan RJ. 《White and preventiv measures reviewed》. MOS: Magang Technology Center, 2002. 26. in chinese.

[6] ZHOU Yuan hua. Heavy Machinery Science and Technology. Vol. 2 (2003), p.40.

[7] Gladman T. Ironmaking and Steel-making. Vol. 19 (1992). pp.453-457.

[8] B.G. Pound. SRI International, Vol. 10 (1987), pp.260-263.