615 BCC-Cuナノ析出物の転位運動への影響(G01-2 計算力学(2)破壊力学・材料解析,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

抄録

At present, the demand to the improvement in the characteristic of steel material is expanded in the various directions with development of industrial technology, and investigation of the improvement is performed. We focus on precipitation hardening in strengthening mechanism of steel materials. In this study, we simulate an influence of copper precipitates on motion of an edge dislocation using Molecular Dynamics (MD) method in the iron-copper model alloys. In this paper, we compare the motion of the dislocation between copper cluster of 3nm and solution cluster, and discuss their difference.