Precipitation behavior of titanium nitride on a primary inclusion particle during solidification of bearing steel

作     者：Liang Yang Bryan A. Webler Guo-guang Cheng 

作者机构：State Key Laboratory of Advanced MetallurgyUniversity of Science and Technology Beijing Center for Iron and Steelmaking ResearchDepartment of Materials Science and EngineeringCarnegie Mellon University 

出 版 物：《Journal of Iron and Steel Research International》 (Journal of Iron and Steel Research, International)

年 卷 期：2017年第24卷第7期

页      面：685-690页

核心收录：

学科分类：080602[工学-钢铁冶金] 08[工学] 0806[工学-冶金工程] 

基　　金：the financial support provided by the Key Technology Development of Bearing Steel for Major Equipment of China(No.2012AA03A503) 

主　　题：Real time observation Titanium nitride growth Bearing steel Precipitation Solidification Inclusion 

摘      要：Titanium nitride precipitation on a primary inclusion particle during solidification of bearing steel has been tracked by varying temperature in a confocal scanning violet laser *** precipitation,an obvious growth of titanium nitride on a primary inclusion particle was observed due to the rapid solute diffusion in liquid *** onset of titanium nitride precipitation did not change with primary inclusion particle size,but the time of growth was greater for a smaller primary inclusion ***,the particle size displayed little influence on the total precipitated amount of titanium nitride on it under the same *** the later period of solidification,almost no change occurred in inclusion size,but the inclusion shape varied from circle to almost square in two-dimension,or cubic in three-dimension,to attain the equilibrium with steel.