J Mater Sci Technol ›› 2004, Vol. 20 ›› Issue (01): 89-91.

• Research Articles • Previous Articles     Next Articles

Effect of Hot Deformation on Pearlite Transformation of 86CrMoV7 Steel

Ming GAO, Hongxing GU, Furen XIAO, Bo LIAO, Guiying QIAO, Ke YANG, Yiyin SHAN   

  1. Yanshan University Holdings Group, Yanshan University, Qinghuangdao 066004
  • Received:1900-01-01 Revised:1900-01-01 Online:2004-01-28 Published:2009-10-10
  • Contact: Furen XIAO

Abstract: The continuous cooling transformation (CCT) diagrams of 86CrMoV7 steel samples including hot deformed and not hot deformed were constructed by dilatometry, metallography and transmission electron microscopy (TEM). The results showed that hot deformation accelerated pearlite transformation and fine pearlite microstructure. Moreover, the undissolved carbides became the nucleating sites of pearlite, accelerated pearlite formation and fine pearlite if the steel had been deformed at high temperature. In contrast, undissolved carbides did not make any influence on pearlite transformation if the steel had not been deformed at high temperature.

Key words: Hot deformation, CCT diagram, Pearlite transformation