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超快速加热/冷却对TC4-B-Si矩阵复合材料微观结构和性能的影响

Xiaonan Lu^1,2, Jianchao Li², Cheng Liu²

¹Ningbo Global Innovation Center, Zhejiang University, Ningbo 315100, China.

Materials (Basel, Switzerland)

|September 27, 2025

概括

研究人员使用选择性激光化开发了超细矩阵复合材料 (TMC). 优化激光能量密度,改进了微观结构和提高了硬度,显示了轻量级,耐磨元件的潜力.

科学领域:

材料科学材料科学材料科学
添加剂制造添加剂制造添加剂制造
复合材料复合材料复合材料

背景情况:

矩阵复合材料 (TMCs) 为高端应用提供了出色的性能.
通过使用超细的多尺度网络结构来增强TMC,可以扩大其应用潜力.

研究的目的:

通过选择性激光化制备现场合成的TC4-- (TC4-B-Si) 复合材料.
研究制备过程,微观结构和性能之间的关系.
通过超快速加热和冷却实现超细微结构.

主要方法:

选择性激光化 (SLM) 用于制造TC4-B-Si复合材料.
在矩阵内的TiB网络结构的现场合成.
控制激光能量密度的变化,以影响微观结构和性能.

主要成果:

优化的激光能量密度产生了高密度TMC,具有稳定的化池和良好的层间粘合.
能量密度的下降使得TiB网络从微米级到纳米级的位置变得更加精细.
由于谷物精炼和强化分布,获得了454 HV的最大微硬度.

结论:

控制选择性激光融过程参数是创建具有增强性质的多结构TMC的可行策略.
开发的TC4-B-Si复合材料显示出对轻量级和耐磨结构部件的承诺.
在现场合成和微结构控制是提高TMC性能的关键.

关键词:

这就是TC4-B-SiSi.硬度硬度硬度硬度这是一个纳米复合材料.超快速冷却的超快速冷却的

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