Development of A Series NV-F Grade Extra High Strength Plate Steels for Offshore Structure and Shipbuilding
Systematic research on developing a series of extra high strength steel plates for shipbuilding via thermomechanical control process (TMCP) is introduced. A microalloyed low carbon-equivalent SiMnCrNiCu steel was used to develop F460 steel. Ultra low carbon Cu-Ni containing steels were used to develop NV-F550, NV-F620 and NV-F690 steel plates. The effect of TMCP parameters on microstructure and properties was investigated by test-scale plant trials. Industrial production trials were conducted to verify the validity of the laboratory studies on the F460 steel. Heavy plates in 45-60 mm thickness met Det Norske Veritas NV-F460 specification. The effect of heat-input on the mechanical properties of the coarse-grained-heat-affect-zone (CGHAZ) of the advanced heavy plates was studied.
TMCP heavy plate steels high strength-toughness
Dongsheng Liu Binggui Cheng
Institute of Research of Iron and Steel (IRIS), Shasteel Jinfeng Town, Zhangjiagang City, Jiangsu Province, 215625, P. R. China
国际会议
The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)
北京
英文
644-650
2011-05-31（万方平台首次上网日期，不代表论文的发表时间）