Wang Longmei, Lin Qin, Ji Jingwen, Lan Denian (Metallurgy Technics Institute, Central Iron & Steel Research Institute, Beijing 100081, China;University of Science & Technology Beijing, Beijing 100083, China;Northeastern University, Shenyang 110004, China;China Iron & Steel Association, Beijing 100711, China)
<正> With the improvement of the clean steel by degrees, the functions of rare earth metals in steel are more focused on modification of inclusions and micro alloying. The new study concerning the application of RE metals in clean steels were investigated by ICP, metallographic examination, SEM, EDS, EPMA, TEM and IMMA. The mechanism of corrosion resistance in the weather resistance steel was clarified. The mechanism of abrasion resistance and the life of fatigue enhanced in the RE-heavy rails steel were discussed. Progress in study of application of rare earth metals in steels (including weather resistance steel, low alloy steel, and heavy rails steel) was covered in this paper.
micro alloying; application; steels; rare earths
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