稀土在钢中应用的新进展

RECFNT PROGRESS IN THE APPLICATION OF RARE EARTHS IN STEEL

本文概要总结了近年来国内外关于稀土在钢中应用研究的新进展。包括:稀土在钢中的物理化学反应;稀土与钙的比较;稀土加入方法与水口结瘤;稀土在铁中的固溶度限与稀土在钢中的固溶量;稀土在钢晶界上的偏聚及其与其它元素的交互作用;稀土对钢的组织和性能的影响;稀土与钢中氢的反应。

This review paper outlines recent progress in the application of rare earthmetals(REM)in steels in China and abroad,It includes:the physical chem-istry of REM in steel;comparision of the application of REM and Ca insteel;the ways of adding REM into steel and nozzle blockage;the solidsolubility limit of REM in Fe and the amount of REM soluble in steel;thesegregation of REM on grain boundaries of steel and its reaction with otherelements;the effect of REM on the structure and properties of steels;thereaction of REM with hydrogen in steel.