Cold resistance of low-carbon steel with rare earth metals

1973 ◽  
Vol 15 (11) ◽  
pp. 929-932
Author(s):  
N. I. Butko ◽  
I. V. Navrotskii ◽  
Yu. Z. Sokol'skii
Keyword(s):  
Rare Earth ◽  
Carbon Steel ◽  
Cold Resistance ◽  
Rare Earth Metals ◽  
Low Carbon Steel ◽  
Low Carbon

Effect of Rare Earth Elements on Corrosion Behavior of Low Carbon Steel in CSP

2011 ◽  
Vol 311-313 ◽  
pp. 835-840
Author(s):  
Tao Li ◽  
Meng Qin ◽  
Zi Li Jin ◽  
Hui Ping Ren
Keyword(s):  
Rare Earth ◽  
Carbon Steel ◽  
Rare Earth Elements ◽  
Corrosion Current Density ◽  
Low Carbon Steel ◽  
Corrosion Current ◽  
Low Carbon ◽  
Compact Strip Production ◽  
Re Elements ◽  
Strip Production

Effects of rare earth elements (RE) on modification of inclusions, the corrosion dynamic laws and the electrochemical properties of low carbon steel in Compact strip production (CSP) technology have been investigated with SEM, EDS and polarization curve measurements. The results show that the RE elements play an important role on the morphology and type control of inclusions and also reduce their size in low carbon steel. The corrosion is mitigated due to relatively compact corrosion products and the dispersion spherical RE oxides and/or oxy-sulfides inclusions with the addition of RE. Meanwhile, the electrochemical measurements show that the corrosion current density of low carbon steel with RE is lower than that of steel without RE. The corrosion resistance is improved to a certain extent by RE.

Preparation of a Low Carbon Steel with Ultrafine Grained Microstructure through Rare Earth Micro-Alloying

2011 ◽  
Vol 266 ◽  
pp. 237-240 ◽  
Author(s):  
Cheng Jun Liu ◽  
Hong Liang Liu ◽  
Mao Fa Jiang
Keyword(s):  
Heat Treatment ◽  
Rare Earth ◽  
Critical Temperature ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
Treatment Temperature ◽  
Low Carbon ◽  
Treatment Conditions ◽  
Ultrafine Grained ◽  
Hot Rolled

The effects of the rare earth (RE) element on the microstructure of a hot-rolled low carbon steel (B450NbRE) were investigated under different heat treatment conditions. It was found that the B450NbRE steel with ultrafine grained structure could be successfully prepared with a certain content of RE additive under an appropriate heat treatment temperature between A1 (717°C) and A3 (880°C). The corresponding critical temperature increases with decreasing the RE content. For instance, the critical temperature is 800°C for the RE content of 0.0140 wt.%, but it increases to 850°C as the RE content decreases to 0.0075 wt.%

Effect of Rare Earth on Microstructure and Impact Toughness of Low Carbon Steel Based on Compact Strip Production Process

2011 ◽  
Vol 189-193 ◽  
pp. 1753-1756 ◽  
Author(s):  
Hai Yan Wang ◽  
Hui Ping Ren ◽  
Zi Li Jin ◽  
Cui Zong
Keyword(s):  
Rare Earth ◽  
Carbon Steel ◽  
Impact Toughness ◽  
Acicular Ferrite ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Compact Strip Production ◽  
Hot Rolled ◽  
Strip Production

The effect of rare earth (RE) on microstructure and impact toughness of hot rolled low carbon structure steel based on the Compact strip production (CSP) process was investigated in this work. Scan electron microscope (SEM) were employed to characterize the microstructure and analyze the fracture surface. Moreover, hot compression experiments were also adopted on the Gleeble-1500 hot simulator as well. The results indicate that acicular ferrite and/or ultrafine ferrite morphologies can be induced when an appropriate amount of rare earth added into the low carbon steel, which possessed the satisfied strength and toughness behaviors. Compared with commercial low carbon structural steels, the additions of RE can improve dynamic recrystallization critical strain of low carbon structural steel as well. In addition, the role of RE on the formation of these acicular ferrite morphologies has been investigated.

Development of trimming technology for hot rolled ultra-low carbon steel

1993 ◽  
Vol 90 (7-8) ◽  
pp. 917-922
Author(s):  
Y. Matsuda ◽  
M. Nishino ◽  
J. Ikeda
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Ultra Low Carbon Steel ◽  
Hot Rolled
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