表面技术2025，Vol.54Issue(8)：1-15,15.DOI:10.16490/j.cnki.issn.1001-3660.2025.08.001
激光冲击强化机理及其在航空构件上的应用
Laser Shock Processing Mechanism and Its Applications in Aeronautical Components
摘要
Abstract
Fatigue fractures,a persistent challenge in the aerospace industry,are often induced by the demanding operating conditions and the multifaceted stress states to which aviation engines are subject.These fractures not only compromise the structural integrity of aircraft components but also significantly undermine the safety and reliability of the entire aircraft system.In addressing this issue,Laser Shock Processing(LSP)is recognized as a cutting-edge solution.This technology,by creating a microstructural deformation layer exceeding 1 mm in depth and inducing a residual compressive stress layer at the material's surface,significantly enhances the mechanical properties of metals.Consequently,the fatigue life of critical components is markedly extended,offering a robust defense against the onset of fatigue fractures. Since its introduction,LSP garners significant attention within the aerospace sector,becoming a staple in the manufacturing and maintenance of aero-engine components.The technology's extensive application yields substantial benefits,leading to enhanced performance and extended durability of key engine parts.This paper delves into the fundamental principles of LSP,examining its impact on the mechanical properties and microstructural evolution of materials.The paper meticulously analyzes the technology's advantageous effects,such as the increase in residual compressive stress,the enhancement of hardness,the elevation of tensile strength,and the improvement in fatigue resistance.These enhancements are primarily ascribed to the stress effects generated by plasma-induced shock waves during the peening process,and the mechanisms underlying these improvements are systematically summarized. The transformative impact of LSP on material behaviors is further explored in this paper,with a focus on the application and research advancements in typical aircraft engine components.The unique characteristics of LSP as applied to various aerospace structural components are analyzed,underscoring its versatility and effectiveness.The analysis reveals that LSP can be tailored to the specific needs of different aerospace components,thereby optimizing their performance and reliability.This tailored approach is crucial in addressing the complex stress conditions encountered in aerospace applications. As the aerospace industry continues to advance,the application of LSP is anticipated to expand beyond its current scope.The potential of LSP in high-stress environments and its application to novel materials are areas of active research.The ongoing development of LSP techniques aims at optimizing process parameters,thereby further enhancing its efficacy and broadening its applicability to a wider array of aerospace components.The role of LSP in the evolution of aerospace technology is pivotal,as it contributes to the development of new materials and structures that are essential for ensuring safety and reliability.The insights and guidance provides in this discussion lays the groundwork for future technological breakthroughs and applications,positioning LSP as a key technology in the aerospace industry's quest for innovation and excellence.关键词
激光冲击强化/航空构件/力学性能/微观组织演变Key words
laser shock processing/aerospace components/mechanical properties/microstructural evolution分类
矿业与冶金引用本文复制引用
曹晓蝶,李莹华,杨玉奇,丁旺旺,陈俊,吴嘉俊,赵吉宾,乔红超,赵永杰..激光冲击强化机理及其在航空构件上的应用[J].表面技术,2025,54(8):1-15,15.基金项目
广东省基础与应用基础研究基金(2024A1515011011) （2024A1515011011）
国家重点研发计划(2022YFB4601600) （2022YFB4601600）
汕头大学科研启动金项目(NTF22001)Guangdong Basic and Applied Basic Reaserch Foundation(2024A1515011011) （NTF22001）
National Key Research and Development Program(2022YFB4601600) （2022YFB4601600）
Scientific Research Foundation of Shantou University(NTF22001) （NTF22001）
