在把网格引入的各向异性的影响降低到合理范围的基础上，采用相场法研究了在无弹性场作用时，沉淀颗粒间的扩散场相互作用对沉淀相形貌及成分的影响。模拟结果表明：由于扩散场的相互作用，在沉淀相生长及粗化过程中，沉淀颗粒形貌可能出现圆形方形圆形菱形圆形的多种变化，且沉淀内部呈现成分不均匀性。随着沉淀相体积分数的增大，沉淀颗粒间的扩散场相互作用加强，对其沉淀相组织形貌及其成分的影响也更加显著。
With a reasonable mesh-induced anisotropy, phase-field simulation is performed to investigate the effect of the diffusional interaction between the particles on precipitates morphologies and inside compositions without taking elastic interaction into account. Simulated results show that, precipitate-morphology transition will occur during growth and coarsening of the precipitate due to the interaction. The initially rounded particle may vary in the sequence of: circular square circular rhombic circular, and the composition of precipitate will become inhomogeneous. With increase of the precipitate volume fraction, the influence of the inter-particle diffusional interaction on the precipitate morphology and the composition will become stronger.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] | |
| [7] | |
| [8] | |
| [9] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%