scholarly journals Effect of ultra-trace rare earth elements on continuous cooling transformation curve of low carbon steel*

2020 ◽  
Vol 7 (12) ◽  
pp. 125801
Author(s):  
Ruifeng Dong ◽  
Hua Li ◽  
Xiangtao Deng ◽  
Zhiliang Liu
Keyword(s):  
Rare Earth ◽  
Carbon Steel ◽  
Rare Earth Elements ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Continuous Cooling Transformation ◽  
Continuous Cooling ◽  
Transformation Curve ◽  
Ultra Trace ◽  
Continuous Cooling Transformation Curve

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.

The Prediction of the Flow Stress of an Extra-Low Carbon Steel in the Two-Phase Region Using Continuous Cooling Curves

1996 ◽  
Vol 118 (4) ◽  
pp. 463-470 ◽  
Author(s):  
Yhu-Jen Hwu ◽  
J. G. Lenard ◽  
J. J. M. Too
Keyword(s):  
Phase Transformation ◽  
Flow Stress ◽  
Carbon Steel ◽  
Volume Fraction ◽  
Low Carbon Steel ◽  
Phase Region ◽  
Cooling Curves ◽  
Low Carbon ◽  
Two Phase ◽  
Continuous Cooling

Continuous cooling curves of an extra-low carbon steel under three cooling rates are measured. The flow stress of the steel is established in compression tests during which the temperature is continuously decreasing. The phase transformation temperatures are determined from the cooling rate curve. The latent heat during phase transformation is calculated. A new variable, related to the volume fraction of transformation, is defined. Experimental results show that the relationship between the softening ratio of the flow stress due to phase transformation and this new variable may be described by a quadratic relationship. Based on this relationship and the continuous cooling curves, the flow stresses in the two-phase region are successfully predicted.

Bainite Transformation Under Continuous Cooling of Nb-Microalloyed Low Carbon Steel

2006 ◽  
Vol 13 (3) ◽  
pp. 36-39 ◽  
Author(s):  
Hai-long Yi ◽  
Lin-xiu Du ◽  
Guo-dong Wang ◽  
Xiang-hua Liu
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Low Carbon ◽  
Bainite Transformation ◽  
Continuous Cooling
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