Effects of Ce or Nb Addition on Nucleation of Pearlite in High Carbon Steel

Autor: Zhi Yi Shi, Yi Long Liang, Yu Liang
Rok vydání: 2013
Předmět:
Zdroj: Advanced Materials Research. :1531-1535
ISSN: 1662-8985
DOI: 10.4028/www.scientific.net/amr.734-737.1531
Popis: The high-carbon steel was micro-alloying by Ce and Nb respectively, and the effect of micro-alloying on the nucleation of pearlite was reported in the present work. The results show that the pearlite could nucleate in rare earth sulfide inclusions and Nb-containing precipitates. The formation of NbC caused the C-depleted zone, promote the formation of proeutectoid ferrite of the pearlite. And the strain energy caused by rare earth sulfide inclusions will provide activation energies for pearlitic transformation. The inclusion and precipitates will increase the rate of nucleation of pearlite and refined the microstructures of pearlitic steel.
Databáze: OpenAIRE