Effects of laser-textured surface pattern on the wetting behavior and composition optimization of brazing filler: experimental study and numerical simulation

Wang, Xincheng; Chen, Haiyan; Miao, Lele; Fu, Li

doi:10.1007/s00339-019-3174-8

Cited by 6 publications

(2 citation statements)

References 20 publications

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“…Wang i in. [ 26 ] found that the cylindrical surface reduced the contact angle and accelerated the spreading process. Pfleging and Kumari [ 5 ] showed that higher SFE is observed on the surface on which dimple texturing was made than on a linear texturing surface.…”

Section: Discussionmentioning

confidence: 99%

Surface Properties of Ti6Al7Nb Alloy: Surface Free Energy and Bacteria Adhesion

Krzywicka

Szymańska

Tofil

et al. 2022

JFB

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The laser micro-machining was carried out on a station equipped with a TruMicro 5325c laser emitting ultraviolet radiation (343 nm wavelength) in picosecond pulses. On the surface of the Ti6Al7Nb alloy, dimple texturing with a constant diameter of ~200 μm, different depths (from ~5 to ~78 μm) and density (from 10% to 50%) were produced. The value of surface free energy was determined with the Owens–Wendt method using two measuring liquids: distilled water and diodomethane. The Staphylococcus epidermidis strain was used to test the adhesion of bacteria. It was found that the surface free energy value is influenced by both of the texture parameters (density, depth). The density also affects the potential for biofilm formation. Based on the analysis, it was shown that with an increase in surface free energy, the number of adhering microorganisms increases exponentially. Moreover, the study shows that there is a correlation between the number of adhering microorganisms and surface free energy.

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Section: Discussionmentioning

confidence: 99%

Surface Properties of Ti6Al7Nb Alloy: Surface Free Energy and Bacteria Adhesion

Krzywicka

Szymańska

Tofil

et al. 2022

JFB

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“…The surface microstructure morphology had a direct impact on wettability. With the change in the surface microstructure spacing, the wetting angle fluctuated [ 16 ]. Liu et al [ 17 ] found that the Al–Si alloy had poor wettability on the surface of microgrooves and micropits, whereas the Al–Si alloy showed better wettability on the micro/nanoripple surface; this is attributed to the formation of micro/nano-layered patterns and the result is improved capillary action.…”

Section: Introductionmentioning

confidence: 99%

Improvements in Brazed-Joint Properties of Silicon Nitride and Titanium Alloys Using Laser-Induced Microscale Rice Leaf Structures

Dai

Zhao

et al. 2022

Materials

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Si3N4 ceramics with a microscale rice leaf structure (MRLS) and titanium alloy were connected via brazing, and the influence of the surface microstructure on the ceramic connection was analyzed. MRLS fabrication is an efficient and high-degree-of-freedom method that can be used to change a material’s surface morphology and wettability. The MRLS was obtained at a laser power of 110 W, with line spacings of 100 and 50 μm. The laser-treated surface included nanoparticles and micro particles, exhibiting a coral-like structure after agglomeration. When the MRLS was used to braze the titanium alloy, no defects were observed at the brazing interface, and the formation was excellent. Throughout the brazed joint, the MRLS remained intact and formed a strong metallurgical bond with the brazing filler metal. A finite element analysis was performed to study the cross-sectional morphology after joint fracture; from the load-time curve, it was found that the MRLS on the surface not only helped improve the mechanical occlusion and brazing area at the interface, but also helped generate compressive stress on the Si3N4 side. Crack propagation was hindered, thereby increasing the joint strength.

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The effect of surface texturing on the laser-induced wetting behavior of AlSi5 alloy on Ti6Al4V alloy

Huang

et al. 2021

Applied Surface Science

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Effects of laser-textured surface pattern on the wetting behavior and composition optimization of brazing filler: experimental study and numerical simulation

Cited by 6 publications

References 20 publications

Surface Properties of Ti6Al7Nb Alloy: Surface Free Energy and Bacteria Adhesion

Surface Properties of Ti6Al7Nb Alloy: Surface Free Energy and Bacteria Adhesion

Improvements in Brazed-Joint Properties of Silicon Nitride and Titanium Alloys Using Laser-Induced Microscale Rice Leaf Structures

The effect of surface texturing on the laser-induced wetting behavior of AlSi5 alloy on Ti6Al4V alloy

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