自然科学研究

激光电弧复合增材制造TC4组织与力学性能研究

钱梓尧 (华中科技大学机械科学与工程学院), 徐萌翀 (华中科技大学机械科学与工程学院), 李文龙 (武汉科技大学机械工程学院), 翟文正 (华中科技大学机械科学与工程学院)

摘要


随着航空航天等高端制造领域对高性能、轻量化材料的需求增加，钛合金（如TC4）因其优异的性能成为应用热门。传统制造工艺在复杂结构件制造中存在局限性，而增材制造技术通过逐层堆积材料的方式提供了新的解决方案。激光电弧复合增材制造技术通过激光辅助电弧增材制造，并引入同步轧制工艺进一步改善材料的微观组织和力学性能，从而制造出综合性能优秀的TC4合金。然而，关于激光电弧复合增材制造技术在TC4合金中的应用及其对组织与力学性能的影响研究尚不充分，尤其是在不同工艺参数和退火处理条件下的研究更为有限。本研究旨在探讨激光电弧复合增材制造技术在TC4合金中的应用，分析退火前后激光模式（振荡/脉冲）、轧制工艺及送丝速度对材料组织与性能的影响，并研究退火处理对材料性能的改善机制，为高性能钛合金零件的制造提供理论依据和技术支持。

关键词


TC4合金；复合增材制造；微观组织；相变机制；力学性能

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参考


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DOI: https://doi.org/10.33142/nsr.v2i3.17713

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