模拟和研究影响因素对哈泽莱特连续造板块的固化微结构使用CAFE模型的影响因素
Qiuhong Pan1, Wei Jin1, Shouzhi Huang2
1School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, China.
Materials (Basel, Switzerland)
|April 27, 2024
概括
这项研究模拟了哈泽莱特连续造过程,揭示了核化密度和灌温度如何控制片微观结构. 优化的参数可以改进颗粒大小,改善冷应用的材料质量.
科学领域:
- 材料科学与工程 材料科学与工程
- 计算机建模 计算建模
- 金工业是一种金工业.
背景情况:
- 哈泽莱特连续造工艺对于生产高质量的片至关重要,用于冷.
- 这些块的固化微观结构直接影响最终产品的质量.
- 了解和控制这种微观结构是过程优化的关键.
研究的目的:
- 开发一个计算机模型,模拟哈泽莱特连续造过程中的固化微结构.
- 研究核化参数,造温度和造速度对微观结构进化的影响.
- 阐明哈泽莱特工艺的控制机制及其由此产生的微观结构.
主要方法:
- 利用细胞自动化有限元 (CAFE) 方法进行结合计算建模.
- 综合金学分析以验证模拟结果.
- 在模拟中系统地改变核化参数,造温度和造速度.
主要成果:
- 增加的核化密度增加了等离子粒度,并在不断冷却下减少了粒度.
- 较高的低冷却降低了粒粒大小,并扩大了柱状区域.
- 倒温度会影响谷物大小,并促进树突向等谷物过渡.
- 降低造速度可以增加片的粒粒大小.
结论:
- 该研究成功模拟了哈泽莱特连续造过程,为微观结构控制提供了洞察力.
- 确定了核化密度 (10^11-10^13 m^-3) 和低冷却 (1-2.5 °C) 的最佳范围,颗粒大小为35-72 μm.
- 证明了进一步优化连续造参数的潜力,以提高片质量.
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