格子博尔兹曼模型对功能分级材料的增材制造进行建模
1AGH University of Krakow, Faculty of Metals Engineering and Industrial Computer Science, al. Mickiewicza 30, 30-059 Kraków, Poland.
Entropy (Basel, Switzerland)
|January 24, 2025
概括
这项研究模拟了使用粉末床融合 (PBF) 的功能分级材料 (FGM) 制造. 开发的模型准确地预测了材料混合物,从而实现了优化FGM生产.
科学领域:
- 材料科学与工程 材料科学与工程
- 添加剂制造 添加剂制造 添加剂制造
- 计算材料科学科学 计算材料科学
背景情况:
- 功能分级材料 (FGMs) 呈现连续性质变化,提供独特的多功能功能.
- 粉床融合 (PBF) 是FGM制造的关键添加剂制造技术.
- 精确模拟PBF过程对于控制FGM属性至关重要.
研究的目的:
- 开发和验证FGMs的PBF过程的模拟模型.
- 为了研究材料混合物的模拟,特别是AISI 316L和18Ni的模拟300种钢.
- 通过先进的建模实现FGM生产的优化.
主要方法:
- 一种混合模拟方法,结合了基于Unit的沉积模型和格子博尔兹曼方法 (LBM) 模型.
- 整合一个扩散模型来模拟材料混合物和度依赖性质.
- 在PBF过程中模拟颗粒沉积,流体流动,热传递,化和固化.
主要成果:
- 该模拟准确地复制了FGM的PBF过程,包括材料混合行为.
- 该LBM模型已成功扩展到扩散模型,以进行增强的混合模拟.
- 模拟结果与实验数据一致,验证了模型的预测能力.
结论:
- 开发的混合模拟模型为基于PBF的FGM制造提供了强大的工具.
- 该模型有助于研究和优化FGM生产过程.
- 进一步的研究可以将该模型扩展到其他材料组合,以实现更广泛的应用.
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