Characteristics of Nanosecond Pulse Laser Cleaning Paint Coatings on 2024 Aluminum Alloy Surface

The surface of the aluminum alloy is prone to oxidation, which in turn affects the quality of the weld. The 5A12 aluminum alloy was cleaned by acousto-optic Q-switched diode-pumped Nd:YAG laser and the effects of different laser powers and different cleaning speeds on the surface roughness, microstructure, element content, microhardness, residual stress and corrosion resistance of aluminum alloy were investigated. The results show that when the power is 98W and the cleaning speed is 4.1 mm/s, the effect of Nd: YAG laser on the removal of oxide film on 5A12 aluminum alloy surface is the most effective. After laser cleaning, the smoothness and strength of aluminum alloy surface can be effectively improved. However, as a major element in 5A12 aluminum alloy, the content of magnesium decreased. At the same time, the residual tensile stress was generated on the surface of the aluminum alloy after cleaning, and the corrosion resistance slightly decreased.

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Surface integrity control of laser cleaning of an aluminum alloy surface paint layer

Applied Optics ◽

10.1364/ao.404030 ◽

2020 ◽

Vol 59 (30) ◽

pp. 9313 ◽

Cited By ~ 1

Author(s):

Teng Shan ◽

Fengshi Yin ◽

Sijie Wang ◽

Yulin Qiao ◽

Pengfei Liu

Keyword(s):

Aluminum Alloy ◽

Surface Integrity ◽

Paint Layer ◽

Laser Cleaning ◽

Alloy Surface ◽

Aluminum Alloy Surface

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Nanosecond-Pulse Laser Assisted Cold Spraying of Al–Cu Aluminum Alloy

Coatings ◽

10.3390/coatings11030267 ◽

2021 ◽

Vol 11 (3) ◽

pp. 267

Author(s):

Chen Zhang ◽

Dongbin Zhang ◽

Can Luo ◽

Weiping Peng ◽

Xusheng Zang

Keyword(s):

Aluminum Alloy ◽

Pulse Laser ◽

Bonding Strength ◽

Substrate Surface ◽

High Strength ◽

Cold Spraying ◽

Nanosecond Pulse ◽

Forming Technology ◽

Nanosecond Pulse Laser

In this study, nanosecond-pulse laser is used in combination with cold spraying to form a hybrid solid-state forming technology: nanosecond-pulse laser assisted cold spraying. This method successfully manufactured Al-Cu high-strength aluminum alloy coatings. The nanosecond-pulse laser reduced the porosity of the coatings. The laser-induced micro-texture on the substrate surface had the ability of improving the bonding strength of the coating-substrate interface. The bonding strength was closely related to the depth of the micro-texture. The deeper micro-texture caused an unfused interface on the bottom of the texture, which produced voids and reduced the bonding strength. The nanosecond-pulse lasers can also increase the hardness of the coatings. The assistance of the nanosecond-pulse laser has proved to be an effective method to improve the quality of cold sprayed metal coatings.

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Measurement of laser-induced dynamic strain on 2024 aluminum alloy surface

High Power Laser and Particle Beams ◽

10.3788/hplpb20132504.0872 ◽

2013 ◽

Vol 25 (4) ◽

pp. 872-874 ◽

Cited By ~ 1

Author(s):

冯爱新 Feng Aixin ◽

施芬 Shi Fen ◽

韩振春 Han Zhenchun ◽

薛伟 Xue Wei ◽

李彬 Li Bin ◽

...

Keyword(s):

Aluminum Alloy ◽

Alloy Surface ◽

Dynamic Strain ◽

2024 Aluminum Alloy ◽

Aluminum Alloy Surface

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In situ growth of hierarchical boehmite on 2024 aluminum alloy surface as superhydrophobic materials

RSC Advances ◽

10.1039/c4ra00160e ◽

2014 ◽

Vol 4 (28) ◽

pp. 14708-14714 ◽

Cited By ~ 34

Author(s):

Zhijie Wang ◽

Jinghua Gong ◽

Jinghong Ma ◽

Jian Xu

Keyword(s):

Aluminum Alloy ◽

Alloy Surface ◽

In Situ Growth ◽

2024 Aluminum Alloy ◽

Lotus Leaf ◽

Aluminum Alloy Surface

Super-hydrophobic lotus leaf like surface has been fabricated via growth of flower-like boehmite on 2024 aluminum alloy surface and subsequent POTS modification.

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Research on Properties and Formation Mechanism of Ceramic Coatings Prepared by Micro-Arc Oxidation on 2024 Aluminum Alloy Surface

Advances in Machining & Manufacturing Technology VIII - Key Engineering Materials ◽

10.4028/0-87849-999-7.259 ◽

2006 ◽

pp. 259-263

Author(s):

Wan Sheng Zhao ◽

T.Z. Xin ◽

Zhen Long Wang ◽

J.C. Liu

Keyword(s):

Aluminum Alloy ◽

Formation Mechanism ◽

Ceramic Coatings ◽

Alloy Surface ◽

2024 Aluminum Alloy ◽

Micro Arc Oxidation ◽

Aluminum Alloy Surface

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The protection of TDPA deposited from mixed solutions with different water/ethanol ratios for aluminum alloy against corrosion in NaCl solution

Anti-Corrosion Methods and Materials ◽

10.1108/acmm-09-2015-1576 ◽

2017 ◽

Vol 64 (2) ◽

pp. 233-240 ◽

Cited By ~ 1

Author(s):

Qu Jun-e ◽

Chen Geng ◽

Wang Hai-ren ◽

Cao Zhi-yong

Keyword(s):

Aluminum Alloy ◽

Water Content ◽

Corrosion Protection ◽

Corrosion Inhibition ◽

Adsorption Behavior ◽

Alloy Surface ◽

Nacl Solution ◽

2024 Aluminum Alloy ◽

Content Type ◽

Aluminum Alloy Surface

Purpose The purpose of this paper is to investigate the effect of water content of assembly solution on the adsorption behavior and corrosion protection performance of 1–tetradecylphosphonic acid [TDPA, CH3(CH2)13P(O)(OH)2] films on aluminum alloy surface in NaCl solution. Design/methodology/approach Self-assembled monolayers (SAMs) of TDPA were prepared on the 2024 aluminum alloy surface in TDPA containing ethanol-water solutions with different water contents. The adsorption behavior of the SAMs on the alloy surface and their corrosion protection properties in a 3.5 per cent NaCl solution were characterized by potentiodynamic polarization scan, Fourier-transformed infrared spectroscopy (FTIR) and atomic force microscopy (AFM). Findings The FTIR results demonstrated that the TDPA molecules were successfully adsorbed on the 2024 aluminum alloy surface, and the density of the SAMs increased with the increasing water content in the assembly solution. The electrochemical studies and corrosion morphologies observed by AFM showed that the optimal condition is 2 h of assembling in solution B or solution C. The corrosion inhibition efficiency values follow the order solution B ≈ solution C > solution A at the first 2 h assembly and solution B > solution C > solution A while the assembly time exceeded 2 h. The dependence of corrosion inhibition performance of the SAM on the water content and on the assembly time is related to the balancing of competition between TDPA adsorption and dissolution of the alloy oxidation film. Originality/value It illustrates potential application prospects of TDPA for surface treatment of aluminum alloy. Via the comparison with our previous work, this paper provides useful information regarding the difference of corrosion inhibition properties of organic phosphonic acid for aluminum alloy between in neutral and in acid solution.

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