With the help of electron back scattering diffraction techniques and field emission microscope,the misorienta-tion and the precipitation environment of Goss grains in conventional grain-oriented steel were observed and investigated at the initial stage of secondary recrystallization. It reveals that the abnormal Goss grains have a high fraction of high angle boundaries ranging from 25 to 40 deg. The most important observation is that some of {110}<001> grains in matrix indicated higher particle density than their neighbor grains during final annealing at 875℃ before secondary recrystallization,which could create a favorable environment for their abnormal grain growth. Based on misorientation and precipitation results,the abnormal growth mechanism of Goss grains was sketched.
参考文献
| [1] | P. LIN;G. PALUMBO;J. HARASE .COINCIDENCE SITE LATTICE (CSL) GRAIN BOUNDARIES AND GOSS TEXTURE DEVELOPMENT IN Fe-3/100 Si ALLOY[J].Acta materialia,1996(12):4677-4683. |
| [2] | O.Engler .On the influence of orientation pinning on growth selection of recrystallisation[J].Acta materialia,1998(5):1555-1568. |
| [3] | N. Chen;S. Zaefferer;L. Lahn .Effects of topology on abnormal grain growth in silicon steel[J].Acta materialia,2003(6):1755-1765. |
| [4] | N. Rajmohan;J. A. Szpunar .Monte-Carlo simulation of Goss texture development in silicon steel in the presence of MnS particles[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2000(1/2):99-108. |
| [5] | N. Maazi;R. Penelle .Introduction of preferential Zener drag effect in Monte Carlo simulation ofabnormal Goss grain growth in the Fe-3%Si magnetic alloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2009(1/2):135-140. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%