• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2023, Vol. 59 ›› Issue (14): 151-158,168.doi: 10.3901/JME.2023.14.151

• 材料科学与工程 • 上一篇    下一篇

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电弧增材再制造低碳钢疲劳性能研究

冯晓慧1, 高飞2,3, 赵阳4, 关雪飞5, 何晶靖2,3, 林京2   

  1. 1. 航天科工防御技术研究试验中心 北京 100854;
    2. 北京航空航天大学可靠性与环境工程技术(国防科技)重点实验室 北京 100191;
    3. 北京航空航天大学宁波创新研究院 宁波 315800;
    4. 装备再制造技术国防科技重点实验室 北京 100072;
    5. 中国工程物理研究院研究生院 北京 100193
  • 收稿日期:2022-01-20 修回日期:2022-11-22 出版日期:2023-07-20 发布日期:2023-08-16
  • 通讯作者: 何晶靖(通信作者),女,1982年出生,博士,副教授,博士研究生导师。主要研究方向为结构健康监测及疲劳寿命评估,不确定性分析,无损检测。E-mail:hejingjing@buaa.edu.cn
  • 作者简介:冯晓慧,女,1997年出生。主要研究方向为结构健康监测与寿命评估,环境可靠性试验技术。E-mail:fengxiaohui@buaa.edu.cn
  • 基金资助:
    重点实验室基金资助项目(JCKY61420052015,12700002020114006)。

Research on Fatigue Performance of Low Carbon Steel by Wire and Arc Additive Remanufacturing

FENG Xiaohui1, GAO Fei2,3, ZHAO Yang4, GUAN Xuefei5, HE Jingjing2,3, LIN Jing2   

  1. 1. Aerospace Science and Industry Defense Technology Research and Test Center, Beijing 100854;
    2. Science & Technology on Reliability & Environmental Engineering Laboratory, Beihang University, Beijing 100191;
    3. Ningbo Institute of Technology, Beihang University, Ningbo 315800;
    4. National Key Laboratory for Remanufacturing, Beijing 100072;
    5. Graduate School of China Academy of Engineering Physics, Beijing 100193
  • Received:2022-01-20 Revised:2022-11-22 Online:2023-07-20 Published:2023-08-16

摘要: 以增材制造为核心的再制造技术有望在航空航天、武器装备等领域成为替代人工或减材再制造的核心再制造技术。增材制造采用逐层熔融沉积成型,其疲劳性能与常规制造材料相比通常具有较大差异。成型过程中移动热源反复熔覆,形成复杂热历史,造成材料微结构的复杂演变。因此,增材制造材料疲劳裂纹扩展性能也存在一定的各向异性。以电弧增材再制造低碳钢为对象,针对裂纹扩展性能,研究电弧增材制造与常规热轧制造材料之间,以及电弧增材制造材料不同取向之间疲劳裂纹扩展速率的差异。分析造成疲劳裂纹扩展性能差异的微观层面机理,为电弧增材再制造材料在关键领域应用提供支持。

关键词: 电弧增材再制造, 疲劳性能, 微观结构

Abstract: Remanufacturing technology centered on additive manufacturing has drawn a lot of attention in the remanufacturing community for aerospace and military industry. However, due to the characteristics of layer-by-layer fused deposition, the fatigue performance of additive manufacturing materials is quite different compared with the base material. During the molding process, the moving heat source is repeatedly cladded, forming a complex thermal history and causing complex microstructure. The fatigue behavior of a low-carbon steel component fabricated by wire and arc additive remanufacturing is studied. The features of microstructure, texture, and fracture mode of the interlayer area and deposited area are also investigated to reveal the mechanism of anisotropy. Additionally, the difference of fatigue performance between the wire and arc additive manufactured and conventional manufactured specimens is studied.

Key words: wire and arc additive remanufacturing, fatigue performance, microstructure

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