Laser Shock Peening for Improving Fatigue Property of Additively Manufactured Metals

YI Min; ZHANG Xuan; HU Wenxuan; ZHOU Liucheng; LIU Shijie; ZHENG Dayong

doi:10.16080/j.issn1671-833x.2023.20.038

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Laser Shock Peening for Improving Fatigue Property of Additively Manufactured Metals

更新时间：2025-10-30

- Laser Shock Peening for Improving Fatigue Property of Additively Manufactured Metals
- Aeronautical Manufacturing Technology Vol. 66, Issue 20, Pages: 38-49(2023)
- 作者机构：
  
  1. 南京航空航天大学航空航天结构力学及控制全国重点实验室,南京,210016
  2. 空军工程大学航空动力系统安全与等离子体技术全国重点实验室,西安,710038
  3. 北京航天动力研究所低温液体推进技术实验室,北京,100076
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2023.20.038
  CLC：
- Published：2023
- 稿件说明：
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易敏，张璇，胡文轩，周留成，刘士杰，郑大勇. 激光冲击强化改善增材制造金属疲劳性能[J]. 航空制造技术, 2023, 66(20): 38-49.

YI Min, ZHANG Xuan, HU Wenxuan, ZHOU Liucheng, LIU Shijie, ZHENG Dayong. Laser Shock Peening for Improving Fatigue Property of Additively Manufactured Metals[J]. Aeronautical Manufacturing Technology, 2023, 66(20): 38-49.
易敏，张璇，胡文轩，周留成，刘士杰，郑大勇. 激光冲击强化改善增材制造金属疲劳性能[J]. 航空制造技术, 2023, 66(20): 38-49. DOI： 10.16080/j.issn1671-833x.2023.20.038.

YI Min, ZHANG Xuan, HU Wenxuan, ZHOU Liucheng, LIU Shijie, ZHENG Dayong. Laser Shock Peening for Improving Fatigue Property of Additively Manufactured Metals[J]. Aeronautical Manufacturing Technology, 2023, 66(20): 38-49. DOI： 10.16080/j.issn1671-833x.2023.20.038.

摘要

激光冲击强化作为一种有效的金属表面改性技术，在提升增材制造金属疲劳性能及服役寿命方面，展现出了令人振奋的应用前景。本文首先简要介绍了激光冲击强化技术和增材制造技术的发展及分类，然后综述了激光冲击强化作为后处理方式改善增材制造金属疲劳性能的研究进展，并从激光冲击强化调控表面附近的孔隙率、微观组织结构、残余应力等方面阐述了疲劳性能得以提升的机制；同时总结了激光冲击与增材制造复合工艺对增材制造金属疲劳性能的改善效果，并从表面残余压应力及其分布深度分析了疲劳性能大幅提升的原因；最后总结并展望了激光冲击强化在提升增材制造金属疲劳性能方面亟待开展的研究方向。

Abstract

As an effective metal surface modification technology

laser shock peening (LSP) has shown exciting application prospects in improving the fatigue properties and service life of additively manufactured (AMed) metals. Firstly

the development and classification of LSP technology and AM technology are briefly introduced. Then the research progress of LSP as a post-treatment method to improve the fatigue performance of AMed metals is overviewed

along with the mechanism of improving fatigue performance from the aspects of LSP induced changes in porosity

microstructure and residual stress near the AMed metal surface. Furthermore

the combinational technique that incorporates LSP during AM process to improve the fatigue performance of AMed metals is surveyed

and the reasons for the significant improvement of fatigue performance are analyzed in terms of the in-situ LSP induced surface residual compressive stress and its distribution depth. Finally

the summary and outlook on the research directions of LSP in improving fatigue performance of AMed metals are provided.

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