Modeling study of the particle pinning effect on the grain boundary movement (046＃)

摘要：

In this work, based on the classical grain boundary (GB) formula and the principle of work-energy conversion,a new physically-based model has been developed to predict the particle pinning force concerning the interaction between second phase particles (SPPs) and the moving GB. The effect of particles pinning on the GB movement is analyzed. The modeling results can be applied to quantitatively determine the critical numbers of SPPs required for complete pining the grain growth, such as the critical SPPs number of the unit GB area, the critical number for single grain stagnation, the critical volume fraction of particles at a given particle size.Theoretical predictions are in good agreement with the experimental results by Gladman.

关键词： the second-phase particle pinning force physical-based model

作者: WANG Xue-lun FU Li-ming WANG Wei JIA Zhi-xin

作者单位: Rizhaosteel Technology Center, Rizhao Iron & Steel Co., Ltd. Rizhao 276806, China School of Materials Scienceand Engineering, Shanghai Jiaotong University, Shanghai 200240 China Department of Structural Steels,Baosteel Research Institute, Shanghai 201900, China

会议类型: 国际会议

会议名称: The 6th International Conference on High Strength Low Alloy Steels(第六届高强度低合金钢国际会议HSLA Steels2011)

会议地点: 北京

会议语种:英文

页码: 542-545

在线出版日期: 2011-05-31（万方平台首次上网日期，不代表论文的发表时间）