Development of Welding Materials for High Heat Input Welding Compatible with Thick Steel Plates of 460 MPa Yield Point Class for Very Large Container Ships
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- 作者：Mr. Yuuji Hashiba M.Sc. (1)
Mr. Kiyohito Sasaki M.Sc. (2)
Mr. Tadashi Kasuya Ph.D in Engineering (3)
Mr. Takehiro Inoue Ph.D in Engineering (3)
Mr. Yuuji Funatsu M.Sc. (4) - 关键词：Arc welding ; Brittle fracture ; Electrogas welding ; Fractures ; High strength steels ; Mechanical properties ; Microstructure ; Mismatch ; Reference lists ; Steels ; Shipbuilding ; Toughness ; Weld metal
- 刊名：Welding in the World
- 出版年：2010
- 出版时间：January 2010
- 年：2010
- 卷：54
- 期：1-2
- 页码：R35-R41
- 参考文献：1. Shirakihara H.: The 191st-92nd Nishiyama Memorial Technical Seminar (in Japanese), ISIJ, 2007, Tokyo.
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3. Sasaki K., Hongo A., Suda K., Motomatsu R., Hashiba Y., Ohkita S., Imai S., Toyohara T., Tsujii H., Ohta M.: Development of Two-electrode Electrogas Arc Welding Process, IIWDoc. XII-1761-3, 2003.
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6. Inoue T., Ishikawa T., Imai S., Koseki T., Hirota K., Tada M., Yamaguchi Y., Matsumoto T., Yajima H.: Long crack arrest concept in heavy-thick shipbuilding steels, Proceedings of the 17th International Offshore and Polar Engineering Conference (ISOPE-2007), 2007.
7. Ishikawa T., Inoue T., Shimanuki H., Imai S., Otani J., Hirota K., Tada M., Yamaguchi Y., Matsumoto T., Yajima H.: Fracture toughness in welded joints of high strength shipbuilding steel plates with heavy-thickness, Proceedings of the 17th International Offshore and Polar Engineering Conference (ISOPE-2007), 2007.
8. Kitada H., Ikegami K., Takahashi N., Yajima H., Tada M., Machida S.: Application of YP40 TMCP plates to Hull Structural Members: Material selections and notch toughness in welded joints, Journal of the Society of Naval Architects of Japan, 1987, Vol. 162, pp. 408-14. CrossRef
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11. Kojima A., Kasuya T., Tsuruta T., Minami K.: Study on application of electrogas arc welding to SM570 steel in bridge fabrication, Doboku Gakkai Ronbunshuu A, 2007, Vol. 63, No. 1, pp. 1-3 (in Japanese). CrossRef - 作者单位：Mr. Yuuji Hashiba M.Sc. (1)
Mr. Kiyohito Sasaki M.Sc. (2)
Mr. Tadashi Kasuya Ph.D in Engineering (3)
Mr. Takehiro Inoue Ph.D in Engineering (3)
Mr. Yuuji Funatsu M.Sc. (4)
1. Nippon Steel Corporation, Chiba, Japan
2. Nippon Steel & Sumikin Welding Co., Ltd., Chiba, Japan
3. Nippon Steel Corporation, Chiba, Japan
4. Nippon Steel Corporation, Tokyo, Japan - ISSN：1878-6669
文摘
Electrogas arc welding with high efficiency (Two-electrode Vibratory Electrogas Arc Welding, 2E-VEGA? process) and flux-cored wires for the 2E-VEGA process have been developed. They can be applied to YP460 MPa class extremely thick steel plates for very large container ships. The travel speed of the developed 2E-VEGA process is about twice as high as that of the ordinary 1E-VEGA process. Weld metal obtained with the present process and the present wires satisfied the target requirements of YP (yield point or proof stress) ?460 MPa, TS (tensile strength) ?570 MPa, vE?0 (?0 °C Charpy absorbed energy) ?53 J and Hv (hardness number) ?210 Hv in Vickers scale, even when 30 kJ/mm arc energy welding for 51 mm-thick plates was conducted. Using the present process and the present wires, sufficient fracture toughness of joints welded with high arc energy can be obtained.