Synergistic Damage Behavior of 5052 Aluminum Alloy Under CW-Nanosecond Combined Pulse Laser Irradiation.

Yuehao Cai, Donghan Li, Yuyang Chen, Junyang Xu, Xianshi Jia, Lu Zhang, Kai Li, Zhou Li, Cong Wang

Abstract read

In one paragraph

Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

9 authors.

Yuehao CaiState Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.

Donghan LiState Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.

Yuyang ChenState Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.

Junyang XuState Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.

Xianshi JiaState Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.ORCID 0000-0002-8861-9726

Lu ZhangState Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.ORCID 0000-0003-3608-507X

Kai LiState Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.ORCID 0000-0002-1290-1450

Zhou LiSchool of Intelligent Manufacturing, Hunan First Normal University, Changsha 410221, China.

Cong WangState Key Laboratory of Precision Manufacturing for Extreme Service Performance, College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.

Funding

Key Program for Basic Research JCKY2024210A001National Key R&D Program of China 2023YFB4605500National Natural Science Foundation of China No. 52105498Natural Science Foundation of Hunan Province 2026JJ50177Science and Technology Innovation Program of Hunan Province 2026RC3008State Key Laboratory of Precision Manufacturing for Extreme Service Performance ZZYJKT2026-06 and KFKT 2024-16State Key Laboratory of Ultrafast Optical Science and Technology 2025SKL-uFAST-KF22

6 · The paper itself

Abstract

5052 aluminum alloy has been widely used in aerospace, shipbuilding, automotive, and electronic industries due to its low density, high specific strength, and excellent corrosion resistance. Understanding its laser-induced damage behavior under combined continuous-wave (CW) and nanosecond (ns) pulse laser irradiation is essential for optimizing combined laser processing. In this study, the damage behaviors induced by individual CW laser, individual ns pulse laser, and combined pulse laser were systematically investigated using high-speed imaging, infrared thermography, and three-dimensional surface characterization. The results show that the combined pulse laser significantly enhances both damage depth and material removal efficiency compared with single laser irradiation. Although the peak surface temperature remains nearly unchanged under different processing conditions, the crater morphology and penetration depth vary substantially. High-speed imaging reveals that plasma evolution and molten metal ejection dominate the material removal process. Variations in processing parameters significantly modify molten pool dynamics and plasma behavior. In particular, enhanced plasma shielding or excessive energy dissipation reduces the effective laser energy coupling, leading to decreased material removal efficiency. The synergistic interaction among molten pool evolution, plasma expansion, and molten metal ejection governs the final damage morphology. This study provides new insights into the dynamic interaction mechanisms between combined pulse laser and aluminum alloys, offering guidance for parameter optimization in high-precision laser micromachining.

Indexed as

5052 aluminum alloycombined pulse lasermaterial removalplasma

Identifiers

PMID42738027

DOI10.3390/ma19173589

PMCPMC13565999

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.