The Behavior of Rare Earths in Steel

This review paper outlines recent progressin the application of rare earth metals (RE)in steel to improve the mechanical propertiesof steel. It includes: the physical chemistryof RE in steel; comparison of the applicationof RE and Ca in steel; the ways of adding REinto steel and nozzle blockage; the solid solubi-lity limit of RE in Fe and the amount of REsoluble in steel; the segregation of RE on grainboundaries of steel and its reaction with otherelements; the effect of RE on the structureand mechanical properties of steels; the reactionof RE with H in steel.

The Behavior of Rare Earths in Steel

This review paper outlines recent progress in the application of rare earth metals (RE) in steel to improve the mechanical properties of steel. It includes: the physical chemistry of RE in steel; comparison of the application of RE and Ca in steel; the ways of adding RE into steel and nozzle blockage; the solid solubi- lity limit of RE in Fe and the amount of RE soluble in steel; the segregation of RE on grain boundaries of steel and its reaction with other elements; the effect of RE on the structure and mechanical properties of steels; the reaction of RE with H in steel.