Zhou Jialin, Lai Chunming, Pan Chenggang, Pi Xinyu, Hu Tangguo. Strengthening Mechanism of the Ti-microalloyed Container Plate Q345R[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(1): 54-58. doi: 10.7513/j.issn.1004-7638.2014.01.011
Citation:
Zhou Jialin, Lai Chunming, Pan Chenggang, Pi Xinyu, Hu Tangguo. Strengthening Mechanism of the Ti-microalloyed Container Plate Q345R[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(1): 54-58. doi: 10.7513/j.issn.1004-7638.2014.01.011
Zhou Jialin, Lai Chunming, Pan Chenggang, Pi Xinyu, Hu Tangguo. Strengthening Mechanism of the Ti-microalloyed Container Plate Q345R[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(1): 54-58. doi: 10.7513/j.issn.1004-7638.2014.01.011
Citation:
Zhou Jialin, Lai Chunming, Pan Chenggang, Pi Xinyu, Hu Tangguo. Strengthening Mechanism of the Ti-microalloyed Container Plate Q345R[J]. IRON STEEL VANADIUM TITANIUM, 2014, 35(1): 54-58. doi: 10.7513/j.issn.1004-7638.2014.01.011
1. Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of Education, Wuhan University of Science and Technology, Wuhan 430081, Hubei, China;
2. Wuhan Iron and Steel Co., Ltd., Wuhan 430083, Hubei, China
An experiment research on the Ti-microalloyed container plate Q345R was conducted to test its mechanical properties,microstructures and precipitates.The results show that the tested steel has good strength,ductility,and low-temperature impact toughness.The misconstrues of the steel are composed of ferrite and pearlite with the grain size of grade 12 or so.The precipitate is mainly TiN with sizes of 50~100 nm,and the precipitation begins at 1 343℃ which is below the solidus temperature(TS).Calculations show that TiC can not be formed due to low titanium content.Refined crystalline strengthening and solid solution strengthening contribute most to the strength properties.
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