scholarly journals Evolution Mechanisms of MgO·Al2O3 Inclusions by Cerium in Spring Steel Used in Fasteners of High-speed Railway

2015 ◽  
Vol 55 (5) ◽  
pp. 970-975 ◽  
Author(s):  
Li Jun Wang ◽  
Yan Qiang Liu ◽  
Qi Wang ◽  
Kuo Chih Chou
Keyword(s):  
High Speed ◽  
Spring Steel ◽  
High Speed Railway

Effect of cerium on the cleanliness of spring steel used in fastener of high-speed railway

2014 ◽  
Vol 32 (8) ◽  
pp. 759-766 ◽  
Author(s):  
Yanqiang LIU ◽  
Lijun WANG ◽  
Kuochih CHOU
Keyword(s):  
High Speed ◽  
Spring Steel ◽  
High Speed Railway

scholarly journals Using Ce to modify inclusion in spring steel

2017 ◽  
Vol 53 (3) ◽  
pp. 365-372 ◽  
Author(s):  
Q. Wang ◽  
L.J. Wang ◽  
Y.Q. Liu ◽  
K.C. Chou
Keyword(s):  
Rare Earth ◽  
High Speed ◽  
Reduction Process ◽  
Spring Steel ◽  
Composition Analysis ◽  
High Speed Railway ◽  
Metallographic Examination ◽  
Ring Shape ◽  
Stepwise Reduction ◽  
Potentiodynamic Anodic Polarization

The effect of rare earth metals addition on the Al2O3 inclusions in spring steel used in fastener of high speed railway was investigated by metallographic examination, SEM-EDS and composition analysis. To deform those harmful inclusions to improve material performance?the evolution process of Al2O3 inclusions was investigated through the surface and line scanning. Ce metal modifying Al2O3 is a stepwise reduction process based on a formation of ring shape Ce-riched band around the Al2O3 inclusions during reaction process. Through experiment and thermodynamic calculation, an evolvement rule about Al2O3 inclusions change after Ce addition is obtained, i.e. Al2O3?Ce2O3-Al2O3?Ce2O2S. Changing the inclusions from Al2O3 to rare earth inclusions could improve the resistance to pitting corrosion based on potentiodynamic anodic polarization test.

Corrosion behavior of high-strength spring steel for high-speed railway

2018 ◽  
Vol 25 (5) ◽  
pp. 527-535 ◽  
Author(s):  
Gang Niu ◽  
Yin-li Chen ◽  
Hui-bin Wu ◽  
Xuan Wang ◽  
Di Tang
Keyword(s):  
Corrosion Behavior ◽  
High Speed ◽  
High Strength ◽  
Spring Steel ◽  
High Speed Railway

A Museum Filled with Past, Present and Future in High Speed Railway^|^mdash;SCMAGLEV and Railway Park^|^mdash;

2012 ◽  
Vol 132 (10) ◽  
pp. 673-676
Author(s):  
Takaharu TAKESHITA ◽  
Wataru KITAGAWA ◽  
Inami ASAI ◽  
Hidehiko NAKAZAWA ◽  
Yusuke FURUHASHI
Keyword(s):  
High Speed ◽  
High Speed Railway
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